Physics
Help!
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| Define average speed | total distance moved/total time taken
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| untis of Velocity | metre per second(ms-1)
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| Acceleration | Defined as the rate of change of velocity
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| define freefall | no other forces are acting on it apart from gravity
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| all free-falling objects (on Earth) accelerate downwards at a rate of ? | 10 m/s/s (to be exact, 9.8 m/s/s)
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| Object at rest has ... | zero velocity
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| formula for velocity | displacement(linear distance)/time taken
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| formula for speed | distance/time
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| what is direction of acceleration? | direction of change in velocity
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| the direction of the accelerated motion is towards? | the centre of the earth
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| speed of light in vacuo | 3x10^8 ms-1
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| what is the speed of sound at room temperature? | 330 ms-1
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| a | a
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Created by:
jolimzy
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