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Physics

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Question
Answer
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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