Friction as a force

Why do we slip and fall?

• Due to reduced friction

• Due to water

• Due to dry surface

• Due to slippers

What happens if there is no friction

• We will not be able to drink water

• We will not be able to write

• We will not be able to walk

Why we are able to walk comfortably on rough surface and not on smooth surface?

• Due to slide

• Due to friction

Who discovered the frictional force.

When was the frictional force discovered?

A force that works when two objects come in contact with each other is called a _____________________.

• Gravitational force

• Muscular force

• Contact force or friction force

• Magnetic force

Which are the correct properties of friction

• It slips

• It is on rough surface

• Acts in a direction opposite to the motion of the moving a object

If our dore makes a cracking noise while opening and closing what do we apply to the things?

• Water

• Sauce

• Bread

• Oil

Ficstion _____________ a moving objects.

• Stops

• Slows down

• Pulls

• None of these

Unscramble the word IRTANCUBL. write all the letters in capital