Mechanical Advantage Quiz

John is helping his dad in the garage and his dad asks him to hand over a simple machine which is a rigid bar that pivots on a fixed point called a fulcrum. Which tool is his dad asking for?

• wheel

• screw

• pulley

• lever

John is helping his father in the garage and he sees a tool which consists of a grooved wheel with a rope or chain running along the groove. What is this tool called?

• wedge

• lever

• screw

• pulley

You are helping your friend move into a new house and you need to get a heavy box up to the second floor. Which simple machine would be most helpful if it were a flat, sloped surface?

• Slant

• Inclined plane

• Decline

• Ramp

Imagine you are building a car. Which simple machine would you use that consists of a circular object connected to a smaller cylindrical object?

• lever

• wheel and axle

• screw

• pulley

John is helping his dad in the garage and he needs a simple machine that is a triangular-shaped object with a sharp edge. Which tool should he use?

• wedge

• screwdriver

• hammer

• screw

John is using a lever to lift a heavy object. The lever has a mechanical advantage of 4. If John applies a force of 20 N, what is the force exerted by the lever on the object?

• 40 N

• 80 N

• 10 N

• 100 N

A construction worker is using a pulley system with 3 pulleys to lift a load. If he applies a force of 50 N, what is the force exerted on the load?

• 16.67 N

• 10 N

• 25 N

• 40 N

A worker is using an inclined plane to move a heavy box to a platform. The inclined plane has a length of 5 meters and the platform is 2 meters high. What is the mechanical advantage of the inclined plane the worker is using?

• 3

• 2.5

• 1.5

• 0.4

A mechanic is working on a car and notices that the wheel has a radius of 10 cm and the axle has a radius of 2 cm. What is the mechanical advantage of the wheel and axle in this scenario?

• 2

• 8

• 10

• 5

John is chopping wood for the winter. He uses a wedge to split the logs. If he applies a force of 100 N and the wedge has a mechanical advantage of 2, what is the output force?

• 150 N

• 300 N

• 200 N

• 50 N