Force, Work and energy

The force applied by earth is called as 

• Mechanical Force

• Gravitational Force

• Elastic force

• Frictional force

The force which slows down or stops the body is called

• Mechanical Force

• Gravitational Force

• Elastic force

• Frictional force

The simple machine

• Makes work easier

• Make work faster

• Change the direction of force

• All of these

See- Saw is an example of

• Lever

• Pulley

• Wheel and axle

• Inclined plane

Slide is an example of

• Lever

• Pulley

• Wheel and axle

• Inclined plane

The force applied by muscles is called

• Muscular Force

• Gravitational Force

• Elastic force

• Frictional force

______________ is an example of wheel and axle

• Pulley

• Lever

• Screw

This is used to open lids

• pulleys

• lever

• wheel and axle

• inclined plane

Which is a machine which looks like a nail with grooves?

• Screw

• Wedge

• Pulley