MEDIUM
8th CBSE
IMPORTANT
Earn 100

What are the effects that a force can have on an object?

Important Questions on Force and Pressure

HARD
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 11 - Force and Pressure>Exercises>Q E
Explain contact and non-contact forces, with the help of two examples for each.
MEDIUM
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 11 - Force and Pressure>Exercises>Q E
The mass of an object is the same all over the universe but the weight varies from place to place. Explain why.
EASY
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 11 - Force and Pressure>Exercises>Q E
Why is it better to use a school bag that has broad straps? What problem might you face if the straps are narrow?
MEDIUM
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 11 - Force and Pressure>Exercises>Q E
What is a manometer? Explain its working with the help of a labeled diagram.
MEDIUM
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 11 - Force and Pressure>Exercises>Q E
Describe an experiment to show that atmospheric pressure acts in all directions.
MEDIUM
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 11 - Force and Pressure>Exercises>Q E
Why is the pressure inside an aeroplane maintained at the normal ground-level atmospheric pressure?
MEDIUM
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 11 - Force and Pressure>Higher-order Thinking Skills>Q 1
Which dam should be stronger-one that must hold back 100,000 m3 of 10 m deep water or one that must hold back 100,000 m3 of 20 m deep water? Give reasons.
MEDIUM
8th CBSE
IMPORTANT
New Science Ahead 8>Chapter 11 - Force and Pressure>Higher-order Thinking Skills>Q 2
Mercury weighs more than water. Would you expect the pressure exerted by water to be greater or less than the pressure exerted by the same amount of mercury?