EASY
8th CBSE
IMPORTANT
Earn 100

The force that can be defined as the resistance offered by air to objects moving through it. (Choose from: balanced force/ unbalanced force/ drag)

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Important Questions on Friction

EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 12 - Friction>ASSESSMENT ZONE>Q E
Name the friction acting when wheels are used to pull a heavy load.
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 12 - Friction>ASSESSMENT ZONE>Q F
What is friction?
 
EASY
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 12 - Friction>ASSESSMENT ZONE>Q F
State three advantages of friction.
 
MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 12 - Friction>ASSESSMENT ZONE>Q F
Why is it not wise to reduce friction in every situation? Explain one situation where reducing friction can be dangerous to us.
MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 12 - Friction>ASSESSMENT ZONE>Q F
What do you mean by a streamlined shape? How is it useful?
MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 12 - Friction>ASSESSMENT ZONE>Q F
What is the cause of friction? How can we minimise it?
 
MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 12 - Friction>ASSESSMENT ZONE>Q F
What is the difference between rolling and sliding friction?
MEDIUM
8th CBSE
IMPORTANT
Expanded Universal Science>Chapter 12 - Friction>ASSESSMENT ZONE>Q G
Why do we use ball bearings to reduce friction?