"Circular Motion: centripetal acceleration & force-G11-

Which represents the acceleration of the ball?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

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

• A
• B
• C
• D

Tags

NGSS.MS-PS3-1

If the radius of the string is 0.3 meters long and the stopper makes 5 revolutions per second, what is the speed of the stopper? (Hint: C=2πr)

• 9.4 m/s

• 6.8 m/s

• 11.7 m/s

• 3.5 m/s

Calculate the velocity of an object moved around a circle with a radius of 1.65 m and an acceleration of 3.5 m/s².

• 2.4 m/s
• 3.6 m/s
• 3.9 m/s
• 4.2 m/s

Tags

NGSS.HS-PS2-1

Calculate the mass of an object if it took 20 N to rotate it in a circle with a radius of 2 meters with a velocity of 4 m/s

• 4.1 kg
• 3.6 kg
• 2.5 kg
• 1.8 kg

Tags

NGSS.HS-PS2-1

Calculate the centripetal force required to make a 5 kg ball move 4 m/s in a circle with a radius of 2 m.

• 10 N
• 20 N
• 30 N
• 40  N

Tags

NGSS.HS-PS2-1

You are moving a ball in a circle using 72 N of centripetal force. What would the force be if you doubled the radius of the circle.

• 18 N
• 36 N 
• 72 N
• 144 N

You are moving a ball in a circle using 72 N of centripetal force. What would the force be if you tripled the radius of the circle.

• 12 N
• 24 N
• 36 N
• 144 N

You are moving a ball in a circle using 72 N of centripetal force. What would the force be if you doubled the velocity of the circle.

• 244 N
• 288 N
• 36 N
• 72 N

You are moving a ball in a circle using 72 N of centripetal force. What would the force be if you doubled the mass of the circle.

• 24 N
• 36 N
• 144 N
• 288 N

Tags

NGSS.HS-PS2-1