A video lecture on definitions, variables, and equations used in circular motion with pauses to answer GoFormative questions on each topic covered.
Select all requirements for objects to move in a circle
You are swinging an object in a horizontal circle (represented in black) and let go of it at the blue dot. Which red vector correctly shows the path of the object after you let go?
Which of these forces can be the centripetal force?
How does the centripetal acceleration affect the velocity of an object in uniform circular motion?
A hummingbird beats its wings 80 times in 4 seconds. What is its period? (answer as a decimal, not a fraction.
What is the hummingbird's wingbeat frequency?
A jogger runs around a quarter of a full track in 10 seconds. What is the period of their motion around the track?
What is the frequency of the runner's motion around the track?
A 1000 kg car drives around a circle of radius 20 m in 10 seconds. What is its tangential velocity? Round to 1 decimal place
What is the car's centripetal acceleration? Round to 1 decimal place
What is the car's centripetal force? Round to 2 sig figs.
Which type of force is acting as the centripetal force?