Thumbnail of What is Friction?

Assessment

What is Friction?

What is Friction?, How Friction works?, Opposing force, Friction helps us to walk, Friction produces heat while rubbing in opposite, Friction is higher when surfaces have roughness.

ninja coder

Physics

Grade VIII

10 plays

100 players

ninja coder

Physics

Grade VIII

10 plays

100 players

10 Qs

1.
Multiple Choice
1 pts•30 s
Friction opposes this between two surfaces?
Answer choices
Attraction
Motion
Pressure
2.
Multiple Choice
1 pts•30 s
Rough surfaces produce more of this compared to smooth surfaces?
Answer choices
Heat
Friction
Sound
3.
Multiple Choice
1 pts•30 s
Lubricants like oil are used to reduce this?
Answer choices
Gravity
Friction
Weight
4.
Multiple Choice
1 pts•30 s
Friction helps us do this activity safely?
Answer choices
Swimming
Walking
Flying
5.
Multiple Choice
1 pts•30 s
Ball bearings are used in machines to reduce this type of friction?
Answer choices
Static
Rolling
Sliding
6.
Multiple Choice
1 pts•30 s
Friction produces this when two surfaces rub against each other?
Answer choices
Light
Heat
Electricity
7.
Multiple Choice
1 pts•30 s
Friction is higher when surfaces have this characteristic?
Answer choices
Smoothness
Roughness
Softness
8.
Multiple Choice
1 pts•30 s
Static friction prevents an object from doing this?
Answer choices
Starting to move
Stopping
Rotating
9.
Multiple Choice
1 pts•30 s
Treads on tires increase this to prevent slipping?
Answer choices
Weight
Friction
Pressure
10.
Multiple Choice
1 pts•30 s
Friction between air and a moving object is called this?
Answer choices
Drag
Thrust
Lift