AP Physics Misconceptions

A force of 50-N is applied to a 4 kilogram mass. The acceleration of the object is:

• 200 m/s²

• 12.5 m/s²

• 54 m/s²

• 46 m/s²

Tags

NGSS.HS-PS2-1

By what factor will the kinetic energy of an object increase if the velocity of the object is tripled?

• The kinetic energy will stay the same.

• 3

• 6

• 9

If the gravitational force between two masses is F, then by what factor would the distance between the two object need to change if the mass of one of the objects is doubled in order for the force to remain the same?

• 4

• 2

• 2^1/2

• 6^1/2

Tags

NGSS.HS-PS2-4

A rocket of mass m begins to ascend vertically at v m/s. The work that gravity does on the rocket is:

• Negative

• Zero

• Positive

• Undefined

Tags

NGSS.HS-PS2-4

A circular object of radius R has an angular velocity of k rad/s. The angular velocity at a point R/2 is:

• 2k rad/s

• k/2 rad/s

• k² rad/s

• k rad/s

The area under a force-time curve represents:

• Change in potential energy

• Change in momentum

• Change in force

• Change in torque

Tags

NGSS.HS-PS2-2

• A

• B

• C

• D

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NGSS.HS-PS2-2

• A

• B

• C

• D

Tags

NGSS.HS-PS2-1

• A

• B

• C

• D

Tags

NGSS.HS-PS2-1

• A

• B

• C

• D

Tags

NGSS.HS-PS2-1