Simple Machines Test

Determine the ideal mechanical advantage of this pulley.

• 5

• 6

• 7

• 7 N

Determine the actual mechanical advantage of this lever.

• 7.96

• 0.13

• 44.78

• 672

Determine the ideal mechanical advantage of this lever.

• 2.14

• 22

• 0.47

• 3.4

Determine the ideal mechanical advantage of this wheel.

• 4

• 8

• 12

• 16

Determine the ideal mechanical advantage of this wheel.

• 4.3

• 0.23

• 8.7

• 2.17

Determine the efficiency of this pulley.

• 60%

• 0.6%

• 167%

• 30%

Determine the efficiency of this pulley system.

• 31%

• 80%

• 24%

• 94%

In general, what is the purpose of simple machines? Select all that apply.

• Decrease Force

• Increase Force

• Decrease Distance

• Increase Distance

The resistance force is the force that...

• is the force needed to lift the object.

• a person does to lift an object with a simple machine.

• a force applied to a simple machine.

• None of the choices are correct.

The effort force is the force that...

• is the force needed to lift the object.

• a person does to lift an object with a simple machine.

• a force applied to a simple machine.

• None of the choices are correct.