Mrs. Love's Simple Machines and Mechanical Advantage

if a load of a lever is 100 newtons and the force you apply is 20 newtons, what is your mechanical advantage?

• 120 N

• 5 N

• 2000 N

• 80 N

Which of the lever would it take less force to lift?

• Lever A

• Lever B

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How much effort would it take to lift Lever A?

• 60 N

• 50N

• 40 N

• 30 N

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A ramp is an example of a(n) _______.

• inclined plane

• fulcrum

• force

• lever

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NGSS.MS-PS3-5

The mechanical advantage of a simple machine is maximized when

• The output force is greater than 1

• The output force is lesser than 1

• remains the same

• none of these

doorknob is an example of a _______.

• wheel and axle

• inclined plane

• pulley

• wedge

Which type simple machine would the base of a light bulb be?

• screw

• wedge

• wheel and axle

• pulley

The fixed point around which a lever rotates is know as the

• wheel.

• fulcrum.

• input force.

• output force.

A simple machine that splits an object apart is a _______.

• inclined plane

• fulcrum

• wedge

• lever

The bow or front of a boat splits the water as the boat moves. What kind of simple machine would the bow of the boat be?

• wedge

• screw

• ramp

• lever