Simple Machines: Wheel and Axle

The video explains the wheel and axle as a type of simple machine. It describes the components, which include the wheel and the axle, and how they function together. The wheel and axle work by multiplying the effort force applied to the wheel, which is then transferred to the axle to overcome resistance. The mechanical advantage of this system is always greater than one and can be calculated by dividing the radius of the wheel by the radius of the axle.

What are the two main components of the wheel and axle?

• Pulley and Rope

• Wheel and Axle

• Inclined Plane and Surface

• Lever and Fulcrum

How does the wheel and axle overcome resistance?

• By reducing friction

• By applying force directly to the axle

• By increasing the size of the wheel

• By multiplying the effort force at the axle

What happens to the effort force when applied to the wheel?

• It is multiplied

• It is divided

• It is reduced

• It remains the same

What is the mechanical advantage of a wheel and axle?

• Always less than one

• Depends on the size of the wheel

• Always equal to one

• Always more than one

How can the mechanical advantage of a wheel and axle be calculated?

• By subtracting the radius of the axle from the radius of the wheel

• By adding the radius of the wheel to the radius of the axle

• By dividing the radius of the wheel by the radius of the axle

• By multiplying the radius of the wheel by the radius of the axle