Understanding the Wheel and Axle

The video explains the concept of a wheel and axle, a simple machine used in everyday objects like doorknobs. It consists of two circular objects of different sizes: the larger wheel and the smaller axle. The video further discusses how increasing the wheel's size relative to the axle enhances mechanical advantage, making tasks easier.

What simple machine is used when turning a doorknob?

• Lever

• Pulley

• Wheel and Axle

• Inclined Plane

What are the two main parts of a wheel and axle?

• Pulley and Rope

• Inclined Plane and Base

• Wheel and Axle

• Lever and Fulcrum

Which part of a wheel and axle is typically larger?

• Both are the same size

• Wheel

• It depends on the machine

• Axle

What happens to mechanical advantage as the wheel size increases relative to the axle?

• It decreases

• It remains the same

• It increases

• It becomes zero

In the context of a wheel and axle, what is the role of the axle?

• To provide support

• To reduce friction

• To act as the smaller circular object

• To increase speed