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| Question | Answer |
| What is a vector Quantity? | A quantity that has both size an direction |
| What is a Scalar? | A quantity that only has size but not direction |
| Examples of Vectors | Velocity, acceleration and momentum |
| Examples of Scalars | Energy, speed, mass and length |
| Velocity definition | A measure of how fast an object travels in a particular direction |
| Speed equation | Speed= distance time |
| Acceleration definition | Rate at which an object speeds up or increases in velocity over time |
| Acceleration equation | Acceleration= change in velocity time |
| Acceleration units | a=m/s2 v=m/s-1 u=m/s-1 t=s |
| What is a free body diagram? | Free-body diagrams are diagrams used to show the relative magnitude and direction of all forces acting upon an object in a given situation. |
| What are action and reaction forces? | According to Newton's third law, for every action force there is an equal (in size) and opposite (in direction) reaction force |
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