Question

Which is an example of someone using a simple machine to do work?
a. a boy runs a football field
b. a banker counts money
c. a mother pushes a stroller up a ramp into the building
d. a girl eats a sandwich

Answer 1

b. a banker counts money

Answer 2

A mother pushing a stroller up a ramp into the building is an example of someone using a simple machine to do work-

• The mother here is using the ramp which can also be called an inclined plane to do work on the stroller by pushing it up.
• Ramp or an inclined plane is one of the six simple machines. It has a flat surface tilted to an angle with one end higher than the other
• It has no moving parts but still, it is considered a simple machine because it makes pushing things easier by reducing the force required to move the object.