Physics Review
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The document provides an overview and examples of momentum concepts including elastic collisions, inelastic collisions, explosions, and momentum in two dimensions. It defines elastic collisions as "bouncy" collisions where objects move apart with different velocities, and inelastic collisions as "sticky" collisions where objects travel together with the same velocity after impact. Explosions involve objects breaking apart and traveling in different directions at different speeds. Examples are provided for calculating the velocity after an inelastic collision, the recoil speed from an explosion, and the velocities of balls after a two-dimensional collision. Key momentum equations are also presented.
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1) An object at rest stays at rest and an object in motion stays in motion unless acted on by an unbalanced force. Friction causes objects to slow down.
2) The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force. F=ma.
3) For every action, there is an equal and opposite reaction. Examples include a bird's wings pushing air down to lift itself up.
Definitions,scientific reasons and mcqs of physics (motion)
1. The document defines various terms related to motion including displacement, velocity, acceleration, momentum, and Newton's laws of motion.
2. It provides definitions for linear motion, rotational motion, oscillatory motion, kinematics, statics, and dynamics.
3. The document includes scientific questions and answers that apply concepts such as inertia, momentum, force, and Newton's laws to explain everyday phenomena.
5-a-laws-of-motion-1.ppt
The document summarizes Newton's laws of motion. It discusses Galileo's observations that disproved Aristotle's law of motion, introducing Galileo's law of inertia that a body at rest or in motion stays that way unless acted on by an external force. It then describes Newton's three laws of motion in detail: 1) inertia, 2) F=ma, and 3) action-reaction. Key concepts like momentum, impulse, conservation of momentum, and circular motion are also summarized.
Changing in motion g3
This document discusses changing motion and forces. It explains that unequal forces cause changes in an object's motion, such as starting, stopping, speeding up or slowing down. Friction is defined as the force that stops or slows objects down when they rub against each other. The document provides examples of friction and how controlling friction can help control motion, such as using lubricants to reduce friction or rough surfaces to increase it. Finally, it briefly introduces different types of motion like waves and their characteristics.
#1235 Motion and Mechanism Student workbook
The document describes a learning lab from Gigo Learning Lab that includes 20 individual packages and 5 school sets for teaching creative ability and innovation through hands-on building and modeling. The special features highlighted include using construction-based learning, promoting both individual and team-based work, and allowing recording of learning progress through a cloud platform.
Newtons laws of motion
This document discusses Newton's three laws of motion:
1) Law of Inertia - An object at rest stays at rest and an object in motion stays in motion unless acted upon by an unbalanced force.
2) Second Law - Force equals mass times acceleration (F=ma).
3) Third Law - For every action there is an equal and opposite reaction. Examples are provided for each law, such as friction causing objects to slow down due to the first law, and calculations using the second law equation.
Gcse Forces And Motion
A moment is a turning force that is calculated by multiplying the applied force by its distance from the pivot point. Centripetal force keeps an object moving in a circular path and increases with mass, speed, or decreasing radius. Momentum is an object's mass multiplied by its velocity, and momentum is conserved in collisions as long as no external forces act.
WEEK 1-CHANGES IN THE MOTION OF AN OBJECT.pptx
This document provides information about Newton's Three Laws of Motion. It begins with an introduction to the three laws, including definitions of inertia, acceleration due to force, and equal reaction forces. Examples are then given to illustrate each law, such as how objects at rest will remain at rest without an external force and how greater masses have more inertia and require more force to change their motion. Formulas for calculating force, mass and acceleration are also derived based on Newton's Second Law.
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Definitions,scientific reasons and mcqs of physics (motion)
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