Introduction to energy
•Download as PPTX, PDF•
0 likes•26 views
This document discusses the nature of energy and defines what energy and work are. It states that energy is the ability to do work, and defines work as being done when a constant force causes an object to move in the direction of the applied force. It then provides the equation for calculating work done as the product of the constant force and distance moved in the direction of force. Finally, it notes that the standard unit for both work and energy is the joule.
Report
Share
Report
Share
Recommended
Nature and types of forces
Forces can be categorized as either contact forces or non-contact forces. Contact forces require direct physical contact between objects and include applied force, normal force, friction, tension, and spring force. Non-contact forces act over a distance and include gravitational force, electrical force, and magnetic force. A net force is the single force equivalent to multiple forces acting on an object. An unbalanced net force will cause acceleration, while a balanced net force where forces are equal will not change an object's motion. Common units for measuring force include the newton.
FORCE | CONTACT AND NON-CONTACT FORCES
Forces can cause changes in an object's motion or form. A contact force requires direct contact between objects, like frictional or muscular forces, while a non-contact force acts over a distance without touching, such as gravitational, magnetic, or nuclear forces. Forces are interactions that can change the motion of an object when unopposed.
Force powerpoint
This document defines and describes various types of forces including contact forces, non-contact forces, gravity, and net force. It explains that a force is a push or pull on an object that can cause it to start, stop, or change motion. Forces are described by their strength and direction. The SI unit for force is the Newton, and one Newton is approximately the force needed to lift a lime. Forces can be contact forces like friction or non-contact forces like gravity and magnetism. Gravity is the attractive force between all objects with mass. Weight and mass are related but different, as weight can change with gravity but mass does not. Net force is calculated by adding or subtracting forces based on their direction.
Force - Biomechanics
In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity.
Watch other topics in http://bit.ly/2PIOIQM
Forces and their effects
Forces are pushes or pulls that can be measured in Newtons. There are two types of forces: contact forces that act through direct physical contact, and non-contact forces like gravity that act over a distance. Forces always act in equal size but opposite direction pairs. Gravity is the non-contact force that attracts all masses and causes their weight. While mass remains constant, weight depends on the gravitational force acting on an object.
Forces
A force is any push or pull that can cause an object to change its motion. Forces have both magnitude and direction. There are two types of forces: contact forces, which require objects to touch, like friction or tension; and non-contact forces, which act over a distance, like gravity or magnetism. A force is measured in Newtons, and the acceleration due to gravity on Earth is 9.81 m/s2. Forces can cause objects to accelerate, decelerate, or maintain a constant velocity depending on whether the net force is nonzero.
Nature of forces
Force is a push or pull that can cause an object to be in motion or change motion. There are different types of forces including contact forces that require touching and non-contact forces that act over a distance. Understanding forces allows you to exert force on objects and know how other forces are involved in a task. It is important to consider forces carefully to handle objects properly.
Force
There are two main types of forces: contact forces, which require physical contact between objects, and non-contact forces, which act over a distance. The document goes on to define and describe several specific types of forces, including muscular force, magnetic force, electrostatic force, gravitational force, mechanical force, and frictional force. Each force is caused by a different interaction or phenomenon, such as muscle contraction, magnetic fields, charged particles, mass, physical contact between surfaces, or the movement of objects against each other.
Recommended
Nature and types of forces
Forces can be categorized as either contact forces or non-contact forces. Contact forces require direct physical contact between objects and include applied force, normal force, friction, tension, and spring force. Non-contact forces act over a distance and include gravitational force, electrical force, and magnetic force. A net force is the single force equivalent to multiple forces acting on an object. An unbalanced net force will cause acceleration, while a balanced net force where forces are equal will not change an object's motion. Common units for measuring force include the newton.
FORCE | CONTACT AND NON-CONTACT FORCES
Forces can cause changes in an object's motion or form. A contact force requires direct contact between objects, like frictional or muscular forces, while a non-contact force acts over a distance without touching, such as gravitational, magnetic, or nuclear forces. Forces are interactions that can change the motion of an object when unopposed.
Force powerpoint
This document defines and describes various types of forces including contact forces, non-contact forces, gravity, and net force. It explains that a force is a push or pull on an object that can cause it to start, stop, or change motion. Forces are described by their strength and direction. The SI unit for force is the Newton, and one Newton is approximately the force needed to lift a lime. Forces can be contact forces like friction or non-contact forces like gravity and magnetism. Gravity is the attractive force between all objects with mass. Weight and mass are related but different, as weight can change with gravity but mass does not. Net force is calculated by adding or subtracting forces based on their direction.
Force - Biomechanics
In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity.
Watch other topics in http://bit.ly/2PIOIQM
Forces and their effects
Forces are pushes or pulls that can be measured in Newtons. There are two types of forces: contact forces that act through direct physical contact, and non-contact forces like gravity that act over a distance. Forces always act in equal size but opposite direction pairs. Gravity is the non-contact force that attracts all masses and causes their weight. While mass remains constant, weight depends on the gravitational force acting on an object.
Forces
A force is any push or pull that can cause an object to change its motion. Forces have both magnitude and direction. There are two types of forces: contact forces, which require objects to touch, like friction or tension; and non-contact forces, which act over a distance, like gravity or magnetism. A force is measured in Newtons, and the acceleration due to gravity on Earth is 9.81 m/s2. Forces can cause objects to accelerate, decelerate, or maintain a constant velocity depending on whether the net force is nonzero.
Nature of forces
Force is a push or pull that can cause an object to be in motion or change motion. There are different types of forces including contact forces that require touching and non-contact forces that act over a distance. Understanding forces allows you to exert force on objects and know how other forces are involved in a task. It is important to consider forces carefully to handle objects properly.
Force
There are two main types of forces: contact forces, which require physical contact between objects, and non-contact forces, which act over a distance. The document goes on to define and describe several specific types of forces, including muscular force, magnetic force, electrostatic force, gravitational force, mechanical force, and frictional force. Each force is caused by a different interaction or phenomenon, such as muscle contraction, magnetic fields, charged particles, mass, physical contact between surfaces, or the movement of objects against each other.
June 6 science 8 balanced and unbalanced force
This document provides a lesson on balanced and unbalanced forces. It defines forces and explains that balanced forces occur when forces cancel each other out, resulting in no movement. Unbalanced forces happen when one force is stronger, causing a change in motion. The lesson compares balanced and unbalanced forces, gives examples of applying forces in daily life, and includes reading activities and a quiz to reinforce understanding.
Chapter 10 Notes: Gravity
This document discusses gravity and the factors that affect how objects fall. It explains that gravity is a force that pulls all objects towards Earth. The greater the mass of an object, the stronger the gravitational pull, and objects that are closer together experience a stronger gravitational attraction. When only gravity is acting on an object, its acceleration is 9.8 m/s2, so all objects in free fall accelerate at the same rate regardless of their mass. Air resistance acts to slow falling objects based on their size and shape, but two objects in a vacuum would hit the ground simultaneously according to Galileo's experiments.
Work
1) Work is defined as a force acting upon an object to cause displacement and is expressed as the product of force and displacement in the direction of force.
2) The work done on a body depends on the magnitude of the force and the displacement through which the body moves in the direction of force.
3) As the angle between the direction of force and motion of the body increases, less work is done along the direction of motion since less of the force is acting in that direction.
Forces
A force is any influence that causes an object to change its movement, direction, or shape. Forces can make an object begin moving, change speed or direction of motion, or cause a flexible object to deform. There are two main types of forces: contact forces, which act between objects in direct contact, and non-contact forces, which act over a distance. Contact forces include normal forces, friction, and tension. Non-contact forces include gravitational, electric, and magnetic forces. Newton's laws of motion describe how forces cause motion or changes in motion.
The nature of force
There are two types of forces: non-fundamental and fundamental. The four fundamental forces are gravitational, electromagnetic, strong nuclear, and weak nuclear. Gravitational force causes attraction between objects due to mass. Electromagnetic force causes attraction or repulsion between charged bodies. Strong nuclear force holds atomic nuclei together, while weak nuclear force plays a role in radioactive decay. Contact forces require direct physical contact while non-contact forces do not. Mass is a measure of matter and weight is the force on an object due to gravity, related by the equation W=mg, where W is weight, m is mass, and g is acceleration due to gravity.
Blog ppt
This document defines and provides examples of different types of forces: contact forces that require touching an object like friction, non-contact forces like magnetism that act over a distance, and balanced and unbalanced forces where balanced forces cancel out and unbalanced forces cause motion or changes in an object. It also states that a force can make stationary objects start moving, moving objects change speed or direction, or deform the shape of objects.
Forces
A force is a push or pull between objects that has both size and direction. The net force on an object is the sum of all individual forces acting on it. Forces in the same direction are added, while forces in opposite directions are subtracted. Balanced forces produce no acceleration, while unbalanced forces cause acceleration that can be predicted using Newton's Second Law, which states that force equals mass times acceleration (F=ma).
Forces
The document defines a force as anything that alters an object's state of inertia, creating a push or pull. Forces can get objects moving, change their direction of motion, stretch or squash objects. There are contact forces like friction, tension, normal force and spring force, which act through direct contact. There are also non-contact or action-at-a-distance forces like gravity, electricity and magnetism. The document provides examples of how each type of force works.
Balanced and unbalanced force
This document defines and provides examples of balanced and unbalanced forces. It states that balanced forces occur when two forces of equal magnitude act in opposite directions, resulting in no acceleration. Unbalanced forces occur when forces are not equal, resulting in acceleration in the direction of the larger force. Examples given include a book at rest on a table with balanced forces, and an object accelerating downwards or horizontally due to unbalanced gravitational and contact forces.
Physics: work, force and energy
The document discusses the concepts of force, energy, and work in physics including defining force as a push or pull, balanced and unbalanced forces, kinetic and potential energy, the conditions for work to be done as the product of force and displacement along the direction of force, and providing examples to illustrate these concepts.
Force high school
Force is defined as an interaction that can change an object's motion, shape, or state of rest. The SI unit of force is the Newton (N). Forces can act through direct contact between objects or at a distance through fields. Force is a vector quantity that has both magnitude and direction. When multiple forces act on an object simultaneously, the net force determines the object's motion, as represented in a free-body diagram which analyzes only the forces affecting a single object.
Stress
Newton's second law of motion states that the acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to its mass. It can be expressed by the equation a=Fnet/m, where a is acceleration, Fnet is the net force, and m is mass. Newton's third law, the law of interaction, states that for every action there is an equal and opposite reaction - forces between objects always occur in action-reaction pairs. Examples include a swimmer pushing water back being pushed forward by the water in return, and a golf club hitting a ball also being hit back by the ball.
Fundamental of work and zero work(part 1)
LEARNING OUTCOME
• Introduction To Work
• Need of Force For Work
• Mathematical Expression For Work
• Unit of Work
• Definition of Joule
• Zero Work And Its Examples
Forces
In Grade 7, you described an object’s motion in terms of displacement, speed
or velocity, and acceleration. You performed activities wherein you interpreted or
created visual representations of the motion of objects such as tape charts and
motion graphs. The concepts were arrived at by studying examples of uniform
motion or objects moving in straight line at constant speed. Then you were also
introduced to non-uniform motion where the object covers unequal distances or
displacements at equal intervals of time. When a jeepney starts moving, it speeds
up. When a jeepney nears a stop sign, it slows down. The jeepney is covering
different displacements at equal time intervals and hence it is not moving at a
uniform velocity. In other words, the jeepney is accelerating.
The force and newton’s 2nd law powerpoint
The document discusses Newton's Second Law of motion, which states that the force on an object is equal to its mass multiplied by its acceleration (F=MA). It provides examples of how gravity exerts a force on all objects due to their mass. It explains that an object's mass never changes, even if its shape or motion does. Doubling the force on a moving car that has a set mass would double its acceleration according to the equation. The document also discusses how multiple forces on an object can add or subtract depending on their direction.
Force
Forces can be balanced or unbalanced, where balanced forces produce no motion and unbalanced forces produce motion; Newton's Three Laws of Motion define how forces cause changes in motion, such as how an applied force results in a change in momentum proportional to that force and acting in the direction of the force, and how every action has an equal and opposite reaction. Forces are measured in Newtons and examples include forces from fingers opening a book, magnets attracting, and gravity holding up objects.
Mechanical equilibrium
c. The forces cancel to zero. For the rock to be at rest, the net force must be zero. The downward force of gravity is balanced by an equal upward force exerted by your hand.
Work.pptx
Work in physics has a specific definition. It is the product of the force applied and the distance an object moves in the direction of the force. Work is done only when a force causes displacement. Work is a scalar quantity measured in joules, where 1 joule is the work done by a 1 newton force moving an object 1 meter. The document provides examples of calculating work from given force and displacement values.
workenergypowerbyakshat-151106163627-lva1-app6892.pdf
1) The document discusses different forms of energy including kinetic energy, potential energy, and gravitational potential energy.
2) Kinetic energy is the energy an object possesses due to its motion, and depends on the object's mass and velocity.
3) Potential energy is energy stored within a system due to an object's position or shape, such as energy stored when stretching a spring.
Work and energy physics 9 class
Potential energy is energy stored in an object due to its position or state. There are different types of potential energy including gravitational potential energy, which is the energy an object gains when lifted against the force of gravity. Gravitational potential energy is calculated as the product of mass, acceleration due to gravity, and height. Kinetic energy is the energy of motion an object has due to its mass and velocity. As an object gains potential energy, it loses kinetic energy and vice versa.
Work and Power
Work is defined as a force acting through a distance in the same direction, while power is the rate at which work is done over time. Work is calculated as force multiplied by distance, with the unit of joules, while power is work divided by time and calculated as force multiplied by distance divided by time, with the unit of watts. Both work and power involve the application of a force, but work is the amount of force exerted through a distance regardless of time, whereas power takes into account the time component by measuring the rate at which work is performed.
Work, Energy and Power
ENERGY AND POWER
This ppt is from XI class CBSE board
Energy
A body which has the capacity to do work is said to possess energy.
For example , water in a reservoir is said to possesses energy as it could be used to drive a turbine lower down the valley. There are many forms of energy e.g. electrical, chemical heat, nuclear, mechanical etc.
The SI units are the same as those for work, Joules J.
In this module only purely mechanical energy will be considered. This may be of two kinds, potential and kinetic.
Power
Power is the rate at which work is done, or the rate at which energy is used transferred.
Equation 3.6
The SI unit for power is the watt W.
A power of 1W means that work is being done at the rate of 1J/s.
Larger units for power are the kilowatt kW (1kW = 1000 W = 103 W) and
the megawatt MW (1 MW = 1000000 W = 106 W).
If work is being done by a machine moving at speed v against a constant force, or resistance, F, then since work doe is force times distance, work done per second is Fv, which is the same as power.
More Related Content
What's hot
June 6 science 8 balanced and unbalanced force
This document provides a lesson on balanced and unbalanced forces. It defines forces and explains that balanced forces occur when forces cancel each other out, resulting in no movement. Unbalanced forces happen when one force is stronger, causing a change in motion. The lesson compares balanced and unbalanced forces, gives examples of applying forces in daily life, and includes reading activities and a quiz to reinforce understanding.
Chapter 10 Notes: Gravity
This document discusses gravity and the factors that affect how objects fall. It explains that gravity is a force that pulls all objects towards Earth. The greater the mass of an object, the stronger the gravitational pull, and objects that are closer together experience a stronger gravitational attraction. When only gravity is acting on an object, its acceleration is 9.8 m/s2, so all objects in free fall accelerate at the same rate regardless of their mass. Air resistance acts to slow falling objects based on their size and shape, but two objects in a vacuum would hit the ground simultaneously according to Galileo's experiments.
Work
1) Work is defined as a force acting upon an object to cause displacement and is expressed as the product of force and displacement in the direction of force.
2) The work done on a body depends on the magnitude of the force and the displacement through which the body moves in the direction of force.
3) As the angle between the direction of force and motion of the body increases, less work is done along the direction of motion since less of the force is acting in that direction.
Forces
A force is any influence that causes an object to change its movement, direction, or shape. Forces can make an object begin moving, change speed or direction of motion, or cause a flexible object to deform. There are two main types of forces: contact forces, which act between objects in direct contact, and non-contact forces, which act over a distance. Contact forces include normal forces, friction, and tension. Non-contact forces include gravitational, electric, and magnetic forces. Newton's laws of motion describe how forces cause motion or changes in motion.
The nature of force
There are two types of forces: non-fundamental and fundamental. The four fundamental forces are gravitational, electromagnetic, strong nuclear, and weak nuclear. Gravitational force causes attraction between objects due to mass. Electromagnetic force causes attraction or repulsion between charged bodies. Strong nuclear force holds atomic nuclei together, while weak nuclear force plays a role in radioactive decay. Contact forces require direct physical contact while non-contact forces do not. Mass is a measure of matter and weight is the force on an object due to gravity, related by the equation W=mg, where W is weight, m is mass, and g is acceleration due to gravity.
Blog ppt
This document defines and provides examples of different types of forces: contact forces that require touching an object like friction, non-contact forces like magnetism that act over a distance, and balanced and unbalanced forces where balanced forces cancel out and unbalanced forces cause motion or changes in an object. It also states that a force can make stationary objects start moving, moving objects change speed or direction, or deform the shape of objects.
Forces
A force is a push or pull between objects that has both size and direction. The net force on an object is the sum of all individual forces acting on it. Forces in the same direction are added, while forces in opposite directions are subtracted. Balanced forces produce no acceleration, while unbalanced forces cause acceleration that can be predicted using Newton's Second Law, which states that force equals mass times acceleration (F=ma).
Forces
The document defines a force as anything that alters an object's state of inertia, creating a push or pull. Forces can get objects moving, change their direction of motion, stretch or squash objects. There are contact forces like friction, tension, normal force and spring force, which act through direct contact. There are also non-contact or action-at-a-distance forces like gravity, electricity and magnetism. The document provides examples of how each type of force works.
Balanced and unbalanced force
This document defines and provides examples of balanced and unbalanced forces. It states that balanced forces occur when two forces of equal magnitude act in opposite directions, resulting in no acceleration. Unbalanced forces occur when forces are not equal, resulting in acceleration in the direction of the larger force. Examples given include a book at rest on a table with balanced forces, and an object accelerating downwards or horizontally due to unbalanced gravitational and contact forces.
Physics: work, force and energy
The document discusses the concepts of force, energy, and work in physics including defining force as a push or pull, balanced and unbalanced forces, kinetic and potential energy, the conditions for work to be done as the product of force and displacement along the direction of force, and providing examples to illustrate these concepts.
Force high school
Force is defined as an interaction that can change an object's motion, shape, or state of rest. The SI unit of force is the Newton (N). Forces can act through direct contact between objects or at a distance through fields. Force is a vector quantity that has both magnitude and direction. When multiple forces act on an object simultaneously, the net force determines the object's motion, as represented in a free-body diagram which analyzes only the forces affecting a single object.
Stress
Newton's second law of motion states that the acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to its mass. It can be expressed by the equation a=Fnet/m, where a is acceleration, Fnet is the net force, and m is mass. Newton's third law, the law of interaction, states that for every action there is an equal and opposite reaction - forces between objects always occur in action-reaction pairs. Examples include a swimmer pushing water back being pushed forward by the water in return, and a golf club hitting a ball also being hit back by the ball.
Fundamental of work and zero work(part 1)
LEARNING OUTCOME
• Introduction To Work
• Need of Force For Work
• Mathematical Expression For Work
• Unit of Work
• Definition of Joule
• Zero Work And Its Examples
Forces
In Grade 7, you described an object’s motion in terms of displacement, speed
or velocity, and acceleration. You performed activities wherein you interpreted or
created visual representations of the motion of objects such as tape charts and
motion graphs. The concepts were arrived at by studying examples of uniform
motion or objects moving in straight line at constant speed. Then you were also
introduced to non-uniform motion where the object covers unequal distances or
displacements at equal intervals of time. When a jeepney starts moving, it speeds
up. When a jeepney nears a stop sign, it slows down. The jeepney is covering
different displacements at equal time intervals and hence it is not moving at a
uniform velocity. In other words, the jeepney is accelerating.
The force and newton’s 2nd law powerpoint
The document discusses Newton's Second Law of motion, which states that the force on an object is equal to its mass multiplied by its acceleration (F=MA). It provides examples of how gravity exerts a force on all objects due to their mass. It explains that an object's mass never changes, even if its shape or motion does. Doubling the force on a moving car that has a set mass would double its acceleration according to the equation. The document also discusses how multiple forces on an object can add or subtract depending on their direction.
Force
Forces can be balanced or unbalanced, where balanced forces produce no motion and unbalanced forces produce motion; Newton's Three Laws of Motion define how forces cause changes in motion, such as how an applied force results in a change in momentum proportional to that force and acting in the direction of the force, and how every action has an equal and opposite reaction. Forces are measured in Newtons and examples include forces from fingers opening a book, magnets attracting, and gravity holding up objects.
Mechanical equilibrium
c. The forces cancel to zero. For the rock to be at rest, the net force must be zero. The downward force of gravity is balanced by an equal upward force exerted by your hand.
What's hot (17)
Similar to Introduction to energy
Work.pptx
Work in physics has a specific definition. It is the product of the force applied and the distance an object moves in the direction of the force. Work is done only when a force causes displacement. Work is a scalar quantity measured in joules, where 1 joule is the work done by a 1 newton force moving an object 1 meter. The document provides examples of calculating work from given force and displacement values.
workenergypowerbyakshat-151106163627-lva1-app6892.pdf
1) The document discusses different forms of energy including kinetic energy, potential energy, and gravitational potential energy.
2) Kinetic energy is the energy an object possesses due to its motion, and depends on the object's mass and velocity.
3) Potential energy is energy stored within a system due to an object's position or shape, such as energy stored when stretching a spring.
Work and energy physics 9 class
Potential energy is energy stored in an object due to its position or state. There are different types of potential energy including gravitational potential energy, which is the energy an object gains when lifted against the force of gravity. Gravitational potential energy is calculated as the product of mass, acceleration due to gravity, and height. Kinetic energy is the energy of motion an object has due to its mass and velocity. As an object gains potential energy, it loses kinetic energy and vice versa.
Work and Power
Work is defined as a force acting through a distance in the same direction, while power is the rate at which work is done over time. Work is calculated as force multiplied by distance, with the unit of joules, while power is work divided by time and calculated as force multiplied by distance divided by time, with the unit of watts. Both work and power involve the application of a force, but work is the amount of force exerted through a distance regardless of time, whereas power takes into account the time component by measuring the rate at which work is performed.
Work, Energy and Power
ENERGY AND POWER
This ppt is from XI class CBSE board
Energy
A body which has the capacity to do work is said to possess energy.
For example , water in a reservoir is said to possesses energy as it could be used to drive a turbine lower down the valley. There are many forms of energy e.g. electrical, chemical heat, nuclear, mechanical etc.
The SI units are the same as those for work, Joules J.
In this module only purely mechanical energy will be considered. This may be of two kinds, potential and kinetic.
Power
Power is the rate at which work is done, or the rate at which energy is used transferred.
Equation 3.6
The SI unit for power is the watt W.
A power of 1W means that work is being done at the rate of 1J/s.
Larger units for power are the kilowatt kW (1kW = 1000 W = 103 W) and
the megawatt MW (1 MW = 1000000 W = 106 W).
If work is being done by a machine moving at speed v against a constant force, or resistance, F, then since work doe is force times distance, work done per second is Fv, which is the same as power.
Force and pressure
This document discusses different types of forces. It defines push and pull forces and provides examples. It explains that a force is a push or pull and defines the Newton as the SI unit of force. It discusses that an interaction between two objects results in a force and provides an example of pushing an ice cream cart. It also discusses net force, magnitude and direction of forces. The document further explains how forces can cause motion, change speed or direction of an object. It distinguishes between contact forces like muscular force and friction, and non-contact forces like magnetic and gravitational forces. It defines pressure and its relationship to force and area. It also discusses atmospheric pressure and how it balances pressure inside our bodies.
Energy work and power
The document discusses key concepts around energy, work, and power. It defines energy as the capacity to do work, with the SI unit of joules. Work is defined as the product of the applied force and the distance moved in the direction of the force. The principle of conservation of energy states that energy cannot be created or destroyed, only changed from one form to another. Power is defined as the rate of work done or energy converted, with the SI unit of watts. Two example problems are included to demonstrate calculations related to gravitational potential energy, kinetic energy, and body power.
Work and energy
The document discusses different meanings of the word "work" and defines work in the context of physics. In physics, work is related to energy and is done when a force causes an object to move in the direction of the force, resulting in a change in the object's energy. Work can be calculated as W=Fd, where W is work, F is the applied force, and d is the displacement of the object in the direction of the force. The standard unit for work is the joule, which is equal to one newton of force applied over one meter of displacement.
Work force energy ppt final wiki
The document discusses various types of energy and forces, explaining that energy cannot be created or destroyed, only changed in form, and defines work as the ability to cause change when a force acts over a distance. It also explains Newton's three laws of motion, including that an object at rest or in motion will remain as such unless acted on by an unbalanced force, and that for every action there is an equal and opposite reaction. The document provides examples and formulas to help understand these concepts of energy, forces, and motion.
Work, energy and power
Work is defined as the product of the force applied to an object and the displacement of the object in the direction of the force. Work is only done when there is a component of force in the direction of motion. No work is done when the force is perpendicular to the displacement. Work has units of joules (J), which is calculated as newton-meters (N⋅m). Examples are provided to demonstrate calculating work done by applying different forces over various displacements and angles.
forceandenergyr-140119054219-phpapp02.pdf
This document discusses different types of forces and energy. It defines force as a push or pull on an object and lists nine common types of forces: frictional, normal, magnetic, air resistance, applied, spring, gravitational, electrical, and tension. It then defines energy as the ability to make things happen or cause change. The document outlines six main types of energy: sound, wind, light, kinetic, potential, and heat. Brief descriptions are provided for each type of force and energy.
482564411-Newton-s-Laws-of-Motion-by-joy.pptx
Newton's laws of motion describe the relationship between an object and the forces acting upon it, and its motion in response to those forces. The three laws are: 1) An object at rest stays at rest and an object in motion stays in motion unless acted upon by an unbalanced force. 2) The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the direction of the net force. 3) For every action, there is an equal and opposite reaction.
Work and energy
Work is defined scientifically as the product of the applied force and the displacement in the direction of the force. Work is done when a force causes an object to move, such as lifting a book or pushing it across a table. No work is done if there is no displacement, such as pushing against a wall. Work has the SI unit of joules. Energy exists in various forms including kinetic, potential, mechanical, electrical, chemical, and nuclear. The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another within a closed system.
MODULE 2 WORK AND ENERGY.pptx
1. This document defines and explains key concepts related to work, energy, and power, including defining work as a force causing an object to move in the direction of the force, resulting in a transfer of energy.
2. It discusses different types of energy like kinetic energy from motion, and potential energy from height or compression. Potential energy is "stored" energy that an object has due to its position or state.
3. Examples are provided to illustrate concepts like calculating work, and how potential energy is transformed into kinetic energy when an object is released. Power is also defined as the rate at which work is done or energy is used.
Force and Energy
This document defines different types of forces and energy. It describes 9 types of forces: frictional, normal, magnetic, air resistance, applied, spring, gravitational, electrical, and tension. It explains that force is a push or pull on an object. It then defines 7 types of energy: sound, wind, light, kinetic, potential, and heat. Force and energy allow things in the world to function and change. Force causes motion or tries to stop motion while different forms of energy underlie everyday phenomena and power technologies.
Energy and work
The presentation discusses the concepts of energy and work. Energy is defined as the ability to do work or produce force over a distance, and comes from Greek meaning "activity." Work requires both a force and displacement in the direction of the force and can be calculated as work = force x distance. Examples of different types of energy - chemical, electrical, nuclear, sound, and mechanical - are provided. The relationship between work and energy is also explained, where work transfers energy and energy is the ability to do work.
force and motion.pdf
This document provides an overview of forces and motion. It defines key terms like force, motion, velocity, and acceleration. It explains that a force is a push or pull and can cause an object to start or stop moving, or change direction. Forces can be contact forces, like normal force and friction, or non-contact forces, like gravity and magnetism. An object will accelerate if the net force acting on it is non-zero. Free-body diagrams are used to represent the different forces acting on an object.
Potential and kinetic energy.pptx
This document discusses potential and kinetic energy. It defines energy as the ability to do work, with units of joules. Potential energy is the energy an object gains due to its position or height, and is calculated as PE=mgh. Kinetic energy is the energy of motion an object possesses due to its mass and speed, calculated as KE=1/2mv^2. The greater the mass or speed of an object, the greater its kinetic or potential energy.
Work and power class
- Work is defined as a force acting through a distance, with the force and distance moving in the same direction.
- Lifting a box is an example of work being done, as the lifting force overcomes the weight and moves the box through a distance. Simply holding a box without moving it is not work.
- Work is calculated as Work = Force x Distance, with the unit of work being the Joule. An example calculation is provided.
Similar to Introduction to energy (20)
workenergypowerbyakshat-151106163627-lva1-app6892.pdf
workenergypowerbyakshat-151106163627-lva1-app6892.pdf
Recently uploaded
BIOLOGY NATIONAL EXAMINATION COUNCIL (NECO) 2024 PRACTICAL MANUAL.pptx
Practical manual for National Examination Council, Nigeria.
Contains guides on answering questions on the specimens provided
Leveraging Generative AI to Drive Nonprofit Innovation
In this webinar, participants learned how to utilize Generative AI to streamline operations and elevate member engagement. Amazon Web Service experts provided a customer specific use cases and dived into low/no-code tools that are quick and easy to deploy through Amazon Web Service (AWS.)
A Visual Guide to 1 Samuel | A Tale of Two Hearts
These slides walk through the story of 1 Samuel. Samuel is the last judge of Israel. The people reject God and want a king. Saul is anointed as the first king, but he is not a good king. David, the shepherd boy is anointed and Saul is envious of him. David shows honor while Saul continues to self destruct.
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
Iván Bornacelly, Policy Analyst at the OECD Centre for Skills, OECD, presents at the webinar 'Tackling job market gaps with a skills-first approach' on 12 June 2024
HYPERTENSION - SLIDE SHARE PRESENTATION.
IT WILL BE HELPFULL FOR THE NUSING STUDENTS
IT FOCUSED ON MEDICAL MANAGEMENT AND NURSING MANAGEMENT.
HIGHLIGHTS ON HEALTH EDUCATION.
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) Curriculum
(𝐓𝐋𝐄 𝟏𝟎𝟎) (𝐋𝐞𝐬𝐬𝐨𝐧 𝟏)-𝐏𝐫𝐞𝐥𝐢𝐦𝐬
𝐃𝐢𝐬𝐜𝐮𝐬𝐬 𝐭𝐡𝐞 𝐄𝐏𝐏 𝐂𝐮𝐫𝐫𝐢𝐜𝐮𝐥𝐮𝐦 𝐢𝐧 𝐭𝐡𝐞 𝐏𝐡𝐢𝐥𝐢𝐩𝐩𝐢𝐧𝐞𝐬:
- Understand the goals and objectives of the Edukasyong Pantahanan at Pangkabuhayan (EPP) curriculum, recognizing its importance in fostering practical life skills and values among students. Students will also be able to identify the key components and subjects covered, such as agriculture, home economics, industrial arts, and information and communication technology.
𝐄𝐱𝐩𝐥𝐚𝐢𝐧 𝐭𝐡𝐞 𝐍𝐚𝐭𝐮𝐫𝐞 𝐚𝐧𝐝 𝐒𝐜𝐨𝐩𝐞 𝐨𝐟 𝐚𝐧 𝐄𝐧𝐭𝐫𝐞𝐩𝐫𝐞𝐧𝐞𝐮𝐫:
-Define entrepreneurship, distinguishing it from general business activities by emphasizing its focus on innovation, risk-taking, and value creation. Students will describe the characteristics and traits of successful entrepreneurs, including their roles and responsibilities, and discuss the broader economic and social impacts of entrepreneurial activities on both local and global scales.
Temple of Asclepius in Thrace. Excavation results
The temple and the sanctuary around were dedicated to Asklepios Zmidrenus. This name has been known since 1875 when an inscription dedicated to him was discovered in Rome. The inscription is dated in 227 AD and was left by soldiers originating from the city of Philippopolis (modern Plovdiv).
Wound healing PPT
This document provides an overview of wound healing, its functions, stages, mechanisms, factors affecting it, and complications.
A wound is a break in the integrity of the skin or tissues, which may be associated with disruption of the structure and function.
Healing is the body’s response to injury in an attempt to restore normal structure and functions.
Healing can occur in two ways: Regeneration and Repair
There are 4 phases of wound healing: hemostasis, inflammation, proliferation, and remodeling. This document also describes the mechanism of wound healing. Factors that affect healing include infection, uncontrolled diabetes, poor nutrition, age, anemia, the presence of foreign bodies, etc.
Complications of wound healing like infection, hyperpigmentation of scar, contractures, and keloid formation.
Bossa N’ Roll Records by Ismael Vazquez.
Bossa N Roll Records presentation by Izzy Vazquez for Music Retail and Distribution class at Full Sail University
How Barcodes Can Be Leveraged Within Odoo 17
In this presentation, we will explore how barcodes can be leveraged within Odoo 17 to streamline our manufacturing processes. We will cover the configuration steps, how to utilize barcodes in different manufacturing scenarios, and the overall benefits of implementing this technology.
THE SACRIFICE HOW PRO-PALESTINE PROTESTS STUDENTS ARE SACRIFICING TO CHANGE T...
The recent surge in pro-Palestine student activism has prompted significant responses from universities, ranging from negotiations and divestment commitments to increased transparency about investments in companies supporting the war on Gaza. This activism has led to the cessation of student encampments but also highlighted the substantial sacrifices made by students, including academic disruptions and personal risks. The primary drivers of these protests are poor university administration, lack of transparency, and inadequate communication between officials and students. This study examines the profound emotional, psychological, and professional impacts on students engaged in pro-Palestine protests, focusing on Generation Z's (Gen-Z) activism dynamics. This paper explores the significant sacrifices made by these students and even the professors supporting the pro-Palestine movement, with a focus on recent global movements. Through an in-depth analysis of printed and electronic media, the study examines the impacts of these sacrifices on the academic and personal lives of those involved. The paper highlights examples from various universities, demonstrating student activism's long-term and short-term effects, including disciplinary actions, social backlash, and career implications. The researchers also explore the broader implications of student sacrifices. The findings reveal that these sacrifices are driven by a profound commitment to justice and human rights, and are influenced by the increasing availability of information, peer interactions, and personal convictions. The study also discusses the broader implications of this activism, comparing it to historical precedents and assessing its potential to influence policy and public opinion. The emotional and psychological toll on student activists is significant, but their sense of purpose and community support mitigates some of these challenges. However, the researchers call for acknowledging the broader Impact of these sacrifices on the future global movement of FreePalestine.
Elevate Your Nonprofit's Online Presence_ A Guide to Effective SEO Strategies...
Whether you're new to SEO or looking to refine your existing strategies, this webinar will provide you with actionable insights and practical tips to elevate your nonprofit's online presence.
Recently uploaded (20)
BIOLOGY NATIONAL EXAMINATION COUNCIL (NECO) 2024 PRACTICAL MANUAL.pptx
BIOLOGY NATIONAL EXAMINATION COUNCIL (NECO) 2024 PRACTICAL MANUAL.pptx
Leveraging Generative AI to Drive Nonprofit Innovation
Leveraging Generative AI to Drive Nonprofit Innovation
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
REASIGNACION 2024 UGEL CHUPACA 2024 UGEL CHUPACA.pdf
REASIGNACION 2024 UGEL CHUPACA 2024 UGEL CHUPACA.pdf
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) Curriculum
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) Curriculum
Juneteenth Freedom Day 2024 David Douglas School District
Juneteenth Freedom Day 2024 David Douglas School District
THE SACRIFICE HOW PRO-PALESTINE PROTESTS STUDENTS ARE SACRIFICING TO CHANGE T...
THE SACRIFICE HOW PRO-PALESTINE PROTESTS STUDENTS ARE SACRIFICING TO CHANGE T...
Elevate Your Nonprofit's Online Presence_ A Guide to Effective SEO Strategies...
Elevate Your Nonprofit's Online Presence_ A Guide to Effective SEO Strategies...
Introduction to energy
- 2. INTRODUCTION
- 3. Nature of energy, Energy is all around you! You can hear energy. You can energy as light. And you can feel energy as wind. You use energy to, Hit a ball. Lift your book. Compresing spring.
- 5. What is energy? 1. It cames from the greek word “energia”. 2. It means in or at work. 3. Therefore energy is the ability to do work.
- 6. What is work? 1. Work is done only when a constant force applied on an object, causes the object to move in the same direction as the force applied.
- 7. A man is trying to push the wall.
- 8. WORK DONE 1. Therefore, work done by a moving body is equal to the product of force exerted on the body and the distance moved by the body in the direction of force. 2. Work done can be calculate by, WORK DONE = Constant force × Distance moved in the direction of force W = F × S Unit[J] = [N] × [m] S I Unit of work is Joule(J).
- 9. Definition of One Joule. When a force of 1N moves a body through a distance of one meter in it’s direction, then the work done is known as one Joule. 1 Joule = 1N × 1m 1 J = 1Nm. UNIT OF ENEEGY : Energy is a capacity to do work. It is measured in terms of work. The unit of work is Joule. So the unit of energy is also Joule.
- 10. THANK YOU