Exploring Wheel and Axle Mechanics

Which of the following is an example of a wheel and axle?

• A seesaw

• A doorknob

• A pulley

• A lever

A wheel and axle system has a wheel with a diameter of 40 cm and an axle with a diameter of 10 cm. What is the mechanical advantage of this system?

• 2

• 3

• 4

• 5

If a wheel and axle system has a mechanical advantage of 5 and the force applied to the wheel is 10 N, what is the force exerted by the axle?

• 2 N

• 5 N

• 10 N

• 50 N

Which of the following is not an example of a wheel and axle?

• A screwdriver

• A bicycle wheel

• A flagpole pulley

• A steering wheel

A wheel and axle system is used to lift a load of 200 N. If the mechanical advantage is 8, what is the force applied to the wheel?

• 20 N

• 25 N

• 30 N

• 40 N

Calculate the mechanical advantage of a wheel and axle system where the wheel radius is 0.5 m and the axle radius is 0.1 m.

• 2

• 3

• 4

• 5

Which of the following systems uses a wheel and axle to function?

• A pair of scissors

• A fishing reel

• A crowbar

• A wedge

A wheel and axle system has a wheel with a radius of 0.6 m and an axle with a radius of 0.2 m. What is the mechanical advantage?

• 2

• 3

• 4

• 5

If the force applied to a wheel is 15 N and the mechanical advantage of the wheel and axle system is 6, what is the force exerted by the axle?

• 60 N

• 75 N

• 90 N

• 100 N

Which of the following is an example of a wheel and axle in everyday life?

• A hammer

• A rolling pin

• A car steering wheel

• A knife