friction as a force

Friction Force is a

• non contact force

• contact force

• magnetic force

We are able to walk because of friction between the ---------- and the ground

• force

• feet

• pull

• push

Rough surfaces have ------------ Friction .

• less

• more

• rigid

• light

Oil and grease are

• powder

• lubricants

• paste

----------- is applied to the moving parts of a vehicle to reduce friction.

• water

• grease

• powder

Friction acts in a direction ----------- to the motion of the moving object.

• in line

• opposite

• parallel

• adjacent

Forest fires are caused due to ------------

• light

• friction

• electro magnetic force

• static force

Due to friction ------- is produced which makes our hands warm.

• force

• heat

• noise

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

We apply _________ to the hinges

• Grease

• Oil

• Powder

• None of these

To reduce friction, we need to make the surfaces