Circular Motion #1

Centripetal acceleration always points

• in the direction of the object's motion
• in the opposite direction of the object's motion
• towards the center of the circle
• towards the outside of the circle

Period is measured in cycles per second

• True
• False

What happens to an object's speed as the radius decreases?

• It increases.
• It decreases.
• It remains unchanged.

Bruno the bat flies at a speed of 0.5 m/s in circle of radius 1 m. What is his acceleration?

• 0.25 m/s^2
• 0.5 m/s^2
• 1 m/s^2
• 2 m/s^2

Tags

NGSS.HS-PS2-1

An ant crawls 40 cm along a perfectly circular leaf with a radius of 10 cm. How many radians did the ant crawl?

• 1
• 4
• pi
• 4 pi

BONUS QUESTION: What's Mrs. Armbruster's favorite kind of candy to get on Halloween?

• Reeses
• Rollos
• Skittles
• Snickers