Circular Motion

An object moving in a circle at constant speed is always __________. This is because it is continually changing __________.

In order for this to happen there needs to be a resultant __________ acting on the object which is directed to the __________ of the circle.

The size of the required resultant __________ increases when:

• The mass of the object is __________
• The radius of the circle is __________ ie. the tightness of the bend is __________
• The speed of the object is __________