ICSE ICSE Class 8 - CISCE Question Bank Solutions for Physics

Describe the process of condensation with examples.

The density of a liquid decreases with increase in its temperature.

Arrange the following substances in order of their increasing density:
Iron, Cork, Brass, Water, Mercury.

How does the density of a liquid (or gas) vary with temperature?

A given quantity of a liquid is heated. Which of the following quantity will vary and how?
(a) mass, (b) volume and (c) density

A balloon filled with hydrogen rises in air. Explain the reason.

The density of air is 1.28 g/Iitre. Express it in g cm^-3  

The density of air is 1.28 g/Iitre. Express it in kg m^-3 

The dimensions of a hall are 10 m × 7 m × 5 m. If the density of air is 1.11 kg m^-3, find the mass of air in the hall.

The energy stored in water of a dam is the kinetic energy.

The potential energy of a body is due to its state of ................... and kinetic energy of body is due to its ...............

A boy lifts a luggage from height 2 m to 4 m. The potential energy will become

What is potential energy? State its unit.

Give one example of a body that has potential energy, in each of the following:

1. due to its position at a height.
2. due to its elongated stretched state.

Name the form of energy stored in a wound up spring of a watch.

Can a body possess energy even when it is not in motion? Explain your answer with an example.

Name the type of energy (kinetic or potential) possessed by the following A moving cricket ball.

Name the type of energy (kinetic or potential) possessed by the following A stone at rest on the top of a building.

Name the type of energy (kinetic or potential) possessed by the following A compressed spring.

Name the type of energy (kinetic or potential) possessed by the following A moving bus.