Torque

Does a bridge anchored resting on two pillars have any torque?

• No, it isn't moving
• Yes, but it is at equilibrium
• Yes, but it will soon break because of the torque
• No, Bridges can't have torque

Tags

NGSS.HS-PS2-1

Why are you more stable when riding a bicycle at a faster speed?

• You have more mass
• The wheels have angular momentum
• It's not easier to ride at a faster speed
• The bike has more momentum

What does the rotational inertia describe? 

• The average position of mass in an extended object.
• How the mass of an object is distributed 
• How a force can rotate an object.
• The tendency of an object to move in a straight line.

In order to do a lot of flips an Olympic diver would want:

• A high rotational inertia
• A low rotational inertia
• A low linear acceleration
• A low angular velocity

A possible unit for angular acceleration is:

• rad/s^2
• rad/s
• N*m
• Kg*m^2

If the net torque on an object is 0, then the object will

• not rotate or rotate at a constant angular velocity.

• rotate with a constant angular acceleration.

• not rotate or move in a straight line.

• not move in a straight line.

Which of the following statements is correct?

• The closer the force is to the axis of rotation, the easier it is to rotate the object.

• The closer the force is to the axis of rotation, the more torque that is produced.

• The farther the force is to the axis of rotation, the less torque that is produced.

• The farther the force is to the axis of rotation, the more torque that is produced.

At what angle should the force be applied to a wrench to produce the maximum torque?

• 0⁰ to the handle

• 90⁰ to the handle

• 180⁰ to the handle

• 360⁰ to the handle

Suppose a doorknob is placed at the center of a door. Compared with a door whose knob is located at the edge, what amount of force must be applied to this door to produce the torque needed to open it?

• 1/4 as much

• 1/2 as much

• Twice as much

• Four times as much

What is defined as a twist or turn, which causes an angular acceleration?

• Angular Momentum

• Center of Mass

• Force

• Torque