GCSE C21 P4 Word Scramble
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Question | Answer |
Instantaneous Speed = | Distance / Time (small distance and short time) |
Average Speed = | Distance / Time (journey distance and journey time) |
Speed from a distance time graph… | find the gradient of the graph = vertical / horizontal |
In a distance time graph horizontal means | the object is stopped |
In a distance time graph the steeper the slope... | the faster the object is going |
In a distance time graph the downhill section means | the object is moving backwards / towards you |
Velocity is speed and | direction |
In a velocity time graph gradient represents.... | acceleration |
In a velocity time graph horizontal means | constant speed |
In a velocity time graph the steeper the slope... | the greater the acceleration |
In a velocity time graph uphill sections indicate... | Acceleration or speeding up (positive acceleration) |
In a velocity time graph downhill sections indicate.. | deceleration or slowing down (negative acceleration) |
Newton’s third law: if you push against a wall the wall... | pushes back on you |
Resultant force is... | the overall force acting on an object. |
Momentum = | mass x velocity |
Change in momentum = | FORCE x TIME (resultant FORCE x TIME for which the force acts) |
Change in energy is the same as | Work done |
Work Done = | Force x Distance |
Kinetic Energy | 1/2 mass x velocity squared |
The formula for change in gravitational potential energy is | Weight x change in height |
Falling objects convert gravitational potential energy into | Kinetic energy |
Units for kinetic energy | J or joules |
Units for potential energy | J or joules |
Units for mass | kg or kilograms |
Units for speed (standard scientific units) | m/s or metres per second |
Units for momentum | kg m/s or kilogram metres per second |
Units for work done | J or joules |
Units for weight | N or newtons (weight is a force) |
Units for force | N or newtons |
Created by:
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