Circular Motion

Which represents the acceleration of the ball?

• A
• B
• C
• D

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

• A
• B
• C
• D

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

If the radius of the string is .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

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Two objects are attracted to each other with 36 N of gravitational force.
What would the force between them be if the distance between them were doubled?

• 9
• 18
• 72
• 144

Two objects are attracted to each other with 36 N of gravitational force.
What would the force between them be if the distance between them were divided by 2?

• 9
• 18
• 72
• 144

Two objects are attracted to each other with 36 N of gravitational force.
What would the force between them be if one of the masses were doubled?

• 9
• 18
• 72
• 144

Two objects are attracted to each other with 36 N of gravitational force.
What would the force between them be if both of the masses were doubled?

• 9
• 18
• 72
• 144

Two objects are attracted to each other with 36 N of gravitational force.
What would the force between them be if the distance and both masses were doubled?

• 9
• 18
• 36
• 72

Tags

NGSS.HS-PS2-4

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