2023-24 Physical Science TEST Chapter 13B, C, and D

Newton's law of torques states that for a system to be in rotational equilibrium, the sum of the torques must be ________________.

• one

• equal to the speed of rotation

• zero

• equal to the angular momentum of the system

The point about which a lever turns or pivots is known as a(n)

• axis

• fulcrum

• axle

• balanced force

• unbalanced force

A twisting or turning force that tends to cause rotation around an axis is known as ____________________.

• Torque

• Circular Mechanical Advantage

• Momentum

• Rotational Inertia

In what type of lever is the output force between the input force and the fulcrum?

• 1st Class Lever

• 2nd Class Lever

• 3rd Class Lever

In what type of lever is the input force between the fulcrum and the output force?

• 1st Class Lever

• 2nd Class Lever

• 3rd Class Lever

In what type of lever is the fulcrum between the input force and the output force?

• 1st Class Lever

• 2nd Class Lever

• 3rd Class Lever

Your arms are an example of what type of lever?

• 1st Class Lever

• 2nd Class Lever

• 3rd Class Lever

A Wheel Barrow is an example of what type of lever?

• 1st Class Lever

• 2nd Class Lever

• 3rd Class Lever

A See-Saw is an example of what type of lever?

• 1st Class Lever

• 2nd Class Lever

• 3rd Class Lever

In what type of lever is Mechanical Advantage any number greater than zero?

• 1st Class Lever

• 2nd Class Lever

• 3rd Class Lever