HARD
8th CBSE
IMPORTANT
Earn 100

What is spring balance? Write its construction and working with a diagram.

Important Questions on Friction

EASY
8th CBSE
IMPORTANT
Full Marks Science>Chapter 12 - Friction>TEST ASSIGNMENT NO. 1>Q 1
What is the cause of friction?
EASY
8th CBSE
IMPORTANT
Full Marks Science>Chapter 12 - Friction>TEST ASSIGNMENT NO. 1>Q 2
On which kind of surface the friction will be greater:
EASY
8th CBSE
IMPORTANT
Full Marks Science>Chapter 12 - Friction>TEST ASSIGNMENT NO. 1>Q 3
Why are the soles of our shoes and tyres of cars, trucks, etc. grooved?
MEDIUM
8th CBSE
IMPORTANT
Full Marks Science>Chapter 12 - Friction>TEST ASSIGNMENT NO. 1>Q 4
List the names of five smooth surfaces and five rough surfaces from your surroundings.
MEDIUM
8th CBSE
IMPORTANT
Full Marks Science>Chapter 12 - Friction>TEST ASSIGNMENT NO. 1>Q 5
Write any four methods of reducing friction.
MEDIUM
8th CBSE
IMPORTANT
Full Marks Science>Chapter 12 - Friction>TEST ASSIGNMENT NO. 1>Q 6
Describe some examples where heat is produced due to friction.
EASY
8th CBSE
IMPORTANT
Full Marks Science>Chapter 12 - Friction>TEST ASSIGNMENT NO. 1>Q 7
Sliding friction is _____ (smaller/larger) than static friction.  
EASY
8th CBSE
IMPORTANT
Full Marks Science>Chapter 12 - Friction>TEST ASSIGNMENT NO. 1>Q 7
Rolling is _____ friction. (smaller/bigger)