Centripetal and Centrifugal Force

Presentation

•

Physics

•

9th Grade

•

Hard

Joseph Anderson

FREE Resource

11 Slides • 10 Questions

Centripetal Force

E.Q. What forces act on objects that are spinning?

H.P.2B.8 Develop and use models (such as a computer simulation, drawing, or demonstration) and Newton’s Second Law of Motion to construct explanations for why an object moving at a constant speed in a circle is accelerating.

Multiple Choice

A horse gallops around a circular arena. The centripetal force on the horse is ___.

directed outward

tension

directed toward the center of the arena

9.8 N

Multiple Choice

Which of the following depict the speed of the blowing ball?

Multiple Choice

Which represents the acceleration of the ball?

Open Ended

What's your good thing for today, how are you feeling (1-10) or Would you rather read an awesome book or watch a good movie?

Type response here

Multiple Choice

What force is needed to make an object move in a

circle?

kinetic friction

static friction

centripetal force

weight

Multiple Choice

When an object experiences uniform circular

motion, the direction of the net force is

in the same direction as the motion of the object

in the opposite direction of the motion of the object

is directed toward the center of the circular path

is directed away from the center of the

circular path

Multiple Choice

A car with a mass of 1800 kg goes around an 18

m radius turn at a speed of 35 m/s. What is the

centripetal force on the car?

25,000 N

75,000 N

122,500 N

250,000 N

Multiple Choice

A ball on a string spins in a horizontal circle of

radius 2.5 m with a speed of 3.0 m/s. The tension in

the string is 5.4 N. What is the mass of the ball?

1.5 kg

3.0 kg

3.6 kg

4.8 kg

Multiple Choice

A 75 kg mass is attached to the end of a 5.0 m

long metal rod string which rotates in a horizontal

circular path. If the maximum force that the rod can

withstand is 8500 N. What is the maximum speed

that the mass can attain without breaking the rod?

15 m/s

24 m/s

25 m/s

110 m/s

Multiple Choice

What is the net force on a 2.0 kg mass spinning in a

circle with radius 1.5 m with a frequency of 4.0 Hz?

3.0 N

19 N

380 N

1900 N

Centripetal Force

E.Q. What forces act on objects that are spinning?

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