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- 1. Newton's First Law An object at rest remains at rest unless an unbalanced force acts on it.
- 2. Newton's Second Law ● ● The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object. Equation: F=ma Force= mass x acceleration
- 3. Newton's Third Law ● Every action force has an equal reaction force.
- 4. Force ● ● ● Force is push or a pull. Force makes an object start moving, slows down, and change direction. Forces are vectors.
- 5. Net Force ● The sum of all forces acting on an object.
- 6. Momentum ● ● ● ● It is the inertia of motion. The more the momentum is, the harder to stop the object. Equation: P=m x v Momentum= Mass x Velocity
- 7. Mass ● Mass is amount of matter in an object. ● The object's inertia depends on mass.
- 8. Acceleration ● ● The more acceleration, the more he change in force acts on the object. Acceleration is the change in velocity.
- 9. Dynamic Equilibrium ● In this equilibrium, the object change the motion.
- 10. Static Equilibrium ● The object stays at rest all the time.
- 11. Mechanical Equilibrium ● ● It is when all the forces cancel out each other and the object stays the same. The sum is zero.
- 12. Matter ● It is anything that takes up space.
- 13. Free Body Diagram ● It is the diagram used to describe the forces acting on an object and in which direction they are acting on it. It shows the relation between the magnitude and the direction of the forces. ● Normal Force ● Gravitational Force ● Applied Force ● Frictional Force
- 14. Elastic Collisions ● Objects bounce off one another.
- 15. Inelastic Collisions ● Objects collide and stick to each other.
- 16. Friction ● ● ● Friction is the force that opposes motion. Friction is more on the rough surfaces which slows down the object's speed. Friction is less on the smooth surfaces which moves the object very smoothly.

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