Intro to Circular Motion

Answer the following questions completely and clearly.

1. Draw an arrow on the diagram representing the instantaneous speed of object A going clockwise around the circle?

2. What is the difference between rotation and revolution?

3. Does a child on a merry-go-round revolve or rotate around the merry-go-round’s axis?

4. What quantity does the symbol T represent?

5. For a circular path of a radius of 25 m, what is the distance around the circle?

6. If an object takes 28 seconds to go around the circle in #5, what is the object’s linear speed?

7. An ant sits halfway between the axis and the edge of a phonograph record. What happens to its linear speed if…

a. the period is doubled?

b. the ant moves to the edge of the record?