Topic 3 Vocabulary 8th S

Any force that has a magnitude greater than zero. This means the force is strong enough to cause an effect, such as initiating movement or changing an object's state of motion.

8. Non-Zero Force

The force exerted by the second object back on the first; equal in strength and opposite in direction to the action.

The initial force exerted by one object on another.

A push or pull acting on an object.

A description of how forces come in pairs, as stated in Newton's Third Law.

The quantity of motion an object has, dependent on its mass and velocity; plays a role in action-reaction pairs.

The measure of the speed and direction of an object's motion.

3. Reaction

1. Force

Use these definitions to complete the Topic 3 Vocabulary worksheet. When you have completed it, answer the questions that follow.

To apply a force.

2. Action

7. Equal and Opposite

6. Momentum

5. Velocity

Topic 3 Vocabulary

4. Exert