Circular Motion

Harry Potter waved his .23 m wand with .069 Nm of torque. How much force did Harry apply to rotate his wand?

• .4
• .5
• .3
• .16

Tags

NGSS.HS-PS2-1

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

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

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

Tags

NGSS.HS-PS2-1

What's the acceleration of gravity of a planet with a mass of 1 x 10²⁵ kg and a radius of 5x10⁶ meters?

• .267 m/s²

• 2.67 m/s²

• 26.7 m/s²

• 267 m/s²

Tags

NGSS.HS-PS2-4

What's the acceleration of gravity of a planet with a mass of 1 x 10²² kg and a radius of 5x10⁵ meters?

• .267 m/s²

• 2.67 m/s²

• 26.7 m/s²

• 267 m/s²

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

What's the centripetal acceleration of a .2 kg yoyo spun in a circle with a radius of .7 meters at a velocity of 3 m/s?

• 8.23 m/s²

• 10.54 m/s²

• 12.86 m/s²

• 17.39 m/s²

Tags

NGSS.HS-PS2-1

Centripetal acceleration acts towards the ___________ of the circular motion

• center
• circumference
• outside
• radius

Tags

NGSS.HS-PS2-1