MEDIUM
8th ICSE
IMPORTANT
Earn 100

Describe a simple experiment to illustrate that air exerts pressure.

Important Questions on Force and Pressure

EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 3 - Force and Pressure>TEST YOURSELF>Q A
The SI unit of force is kgf.
EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 3 - Force and Pressure>TEST YOURSELF>Q A
A force always produces both the linear and turning motions.
MEDIUM
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 3 - Force and Pressure>TEST YOURSELF>Q A
Less force is needed when applied at a farther distance from the pivoted point.
EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 3 - Force and Pressure>TEST YOURSELF>Q A
For a given thrust, pressure is more on a surface of large area.
MEDIUM
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 3 - Force and Pressure>TEST YOURSELF>Q B
Give reason for the following :
A balloon collapses when air is removed from it.
EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 3 - Force and Pressure>TEST YOURSELF>Q B
Give reason for the following :
Two holes are made in a sealed oil tin to take out oil from it.
EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 3 - Force and Pressure>TEST YOURSELF>Q B
How does the atmospheric pressure change with altitude?
MEDIUM
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 3 - Force and Pressure>TEST YOURSELF>Q C
A boy weighing 60 kgf stands on platform of dimensions 2.5 cm x 0.5 cm. What pressure in pascal does he exert ?