science chapter 4th

Gravitational force is also known as the force of..........

A bottle opener is an example of.......

A bottle opener is an example of.......

................. force tries to stop a moving object.

Wind energy is used to generate electricity through........

The tools which make our work faster and easier are called..........

Force can stop a moving object........... (T/F)

A rough surface produces more friction..... (T/F)

All vehicles move due to wheel and axle...... (T/F)

Energy can be created and destroyed..... (T/F)