AP Physics 1 Unit 9 - Torque and Rotational Motion

You and a friend get on two adjacent horses on a merry-go-round. Which horse would have the greater linear speed, a horse near the outside rail of the merry-go-round or a horse near the inside rail?

• The inside horse

• The outside horse

• Both horses have the same speed

• There's not enough information to answer this question

You and a friend get on two adjacent horses on a merry-go-round. Which horse would have the greater angular speed, a horse near the outside rail of the merry-go-round or a horse near the inside rail?

• The inside horse

• The outside horse

• Both horses have the same speed

• There's not enough information to answer this question

Which of the following shows the relationship between linear and angular velocity?

• r = v⍵

• ⍵ = vr

• v = r⍵

• a = v⍵

The easiest way to open a heavy door is by applying the force:

• Near the hinges
• In the middle of the door
• At the edge of the door on the opposite side from the hinges

• At the top of the door

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

If the torque required to loosen a nut on the wheel of a car has a magnitude of 60.0 N• m, what minimum perpendicular force must be exerted by a mechanic at the end of a 45.0 cm wrench to loosen the nut?

• .666 Nm
•  133.3 N
• 66.7 N
• 13.3 Nm

The figure shows scale drawings of four objects, each of the same mass and uniform thickness, with the mass distributed uniformly. Which one has the greatest moment of inertia when rotated about an axis perpendicular to the plane of the drawing at point P?

• A
• B
• C
• D

What is happening to the ice skater?

• Decreased Angular velocity, decreased rotational inertia

• Decreased Angular velocity, increased rotational inertia

• Increased Angular velocity, increased rotational inertia

• Increased Angular velocity, decreased rotational inertia

What does Rotational Inertia, AKA Moment of Inertia, depend on?

• Mass

• Mass Distribution

• Both Mass and its Distribution

• Neither Mass nor its distribution

A seesaw is in rotational equilibrium. What is the weight of the package located on the right side of the balance beam at the 1.5 m mark?

• 5 N
• 10 N
• 15 N
• 20 N

Tags

NGSS.HS-PS2-4

The broomstick shown is in static equilibrium. The torque due to the mass to the right of the person's finger is ____________ compared to the torque due to the mass to the left of the person's finger.

• more

• less

• equal

• None of the above