113317
Description
Flashcards by AliceBridgnell, updated more than 1 year ago
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Created by AliceBridgnell
over 11 years ago
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| Question | Answer |
| Examples: In the atom - electrons orbiting the nucleus Hands on a clock face Car's wheels The Earth around the sun | We know that the body moving in a circular path requires a force; that force acts towards the centre of the circular path - this is called the centripetal force |
| Although the speed of an object moving in a circle may be constant, its velocity isn't | At each point on the circular path the direction of the motion is different |
| If its velocity changes it is accelerating, so a force is needed to produce the acceleration | If a string going in a circular path with a ball on the end breaks, the ball will travel in a straight line at a constant velocity |
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