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As Fast As You Can
Additional Physics Edexel
| Question | Answer |
|---|---|
| Acceleration | A message of how quickly the velocity of an object is changing. It can be possitive or negative. |
| Action | One of a pair of forces. The reaction force acts in the opposite direction. |
| Collision | When two or more objects come into contact with each other. |
| Deceleration | Another term for negative acceleration. |
| Free-Body Diagram | A simplified diagram of an object showing all teh forces acting upon it and the size and direction of those forces. |
| Gradient | A measurement of the steepness of a slope of a graph. The steeper the graph the higher the... |
| Magnitude | A measure of how big something is. |
| Momentum | A quantity describing the movement of an object. Calculated by multiplying the mass by the velocity. |
| Reaction | One of a pair of forces. This acts in the opposite direction to the action force. |
| Reaction Time | The time between when you see or hear somethingand when you react. |
| Resistance | A force that acts in the opposite direction of motion i.e. friction. |
| Resultant Force | The total force that results for two or more forces acting on a single object. It is found by adding the forces together, taking in mind the dircetion. |
| Risk | How likely something unfortunate is going to happen. |
| Speed | A measure of the distance an object travels in a given time. |
| Stopping Distance | The distance a car travels between when the driver sees something and when the car stops. |
| Terminal Velocity | A constant, maximum velocity reached by falling objects. This happens when the weight downwards is equal to the air resistance upwards. |
| Vector | A quantity that has size and direction i.e. velocity. |
| Velocity | The speed of an object in a particular direction. |
| Weight | The force pulling an object downwards. It depends on the mass of an object and the strength of gravity. |