(English Medium) ICSE Class 9 - CISCE Question Bank Solutions for Physics

Suggest the best particles in the use of energy at home that save energy.

A bullet of mass 30 g, and moving with a velocity x hits a wooden target with a force of 187.5 N. If the bullet penetrates 80 cm, find the value of x

How is acceleration due to gravity-related to

1. mass of a planet
2. distance of body from the center of the earth?

State two important characteristics of mass.

What do you understand by the term weight?

State two important characteristics of weight

State the unit of weight in CGS system.

State the unit of weight in SI system.

Name the device used for measuring weight

Does a body weigh the same at all places of the Earth? Give a reason for your answer.

Why is gold not weighed by a spring balance?

A man sits in a machine which generates acceleration five times more than the acceleration due to gravity. If the mass of the man is 80 kg, what is his weight? Take g = 10 ms⁻².

A man weigh 800 N at the equator. How does the weight of man change at the following place?

At poles

A man weigh 800 N at the equator. How does the weight of man change at the following place?

100 km up in space

A man weigh 800 N at the equator. How does the weight of man change at the following place?

10 km down in a mine

How is weight affected in the following case, when initially the body is weighed in Delhi with a spring balance?

Body is taken to Moscow.

How is weight affected in the following case, when initially the body is weighed in Delhi with a spring balance?

Body is taken to Ceylon.

How is weight affected in the following case, when initially the body is weighed in Delhi with a spring balance?

Body is taken to sea level.