Force cannot change the speed or direction of an object.

_____ is said to be done when force moves an object.

What force is pulling the apple down?

The upward push of water on a floating object is called ................... .

Which type of simple machine is a see-saw in the playground ?

Which of these are an effect of force ?

Which type of force do you see in the picture?

A stretched rubber band regains it's original position on being released because of .................. .

Bottle opener is an example of .................... .

The fulcrum of a lever acts as the ................... .

..................... energy is used to operate and run computers.

The Law of Conservation of Energy states that .................... .

Which is the main source of heat and light energy ?

Levers are simple machines which have .................... .