What is an example of a wheel and axle?

Which of the following can be both a lever and a wedge?

Which simple machine is made of rigid or strong bar that is free to move at a fixed point?

Which simple machine is use to reduce friction and to allow moving of object using lesser force?

Knives, nails, chisels, and needles are examples of what kind of simple machine?

Mother used the a spoon to open a can of biscuits. How was the spoon used?

Wheel and axle are important to us because it helps our work easier and faster. Which of the following belongs to Wheel and axle?

Which simple machine is described as an inclined plane wrapped around a shaft, creating grooves?

Elevator as to pulley while escalator as to:__________