# P3, Circular Motion

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• Created by: emmajane_
• Created on: 05-05-14 09:44
Name 3 things that use circular motion
The Earth orbiting the sun, hammer throw and some fairground rides
1 of 7
What is needed to act on an object to go round in the circle?
A resultant force, called centripetal force
2 of 7
What does centripetal force do?
Pulls an object towards the centre of the circle
3 of 7
What is centripetal force in space called?
Gravity
4 of 7
What is the velocity like in circular motion and why?
It's always changing because the object is always changing direction
5 of 7
What is the result of the velocity always changing?
The object accelerates
6 of 7
Name 3 factors affecting centripetal force
1. The mass of the object increasing 2.The speed of the object increasing 3. The radius decreasing
7 of 7

## Other cards in this set

### Card 2

#### Front

What is needed to act on an object to go round in the circle?

#### Back

A resultant force, called centripetal force

### Card 3

#### Front

What does centripetal force do?

### Card 4

#### Front

What is centripetal force in space called?

### Card 5

#### Front

What is the velocity like in circular motion and why?