ICSE ICSE Class 8 - CISCE Question Bank Solutions

How does the wave pattern of a loud note differ from that of a soft note? Draw a diagram.

The temperature at which a solid convert into a liquid is called its .........

Molecules of a substance are always in a state of............ and so they possess .............

Differentiate between melting point ,giving atleast one example of each.

Explain the term Melting.

Explain the term Melting Point.

Describe an experiment to demonstrate that a substance absorbs heat during melting without change in its temperature.

Some ice is taken in a beaker and its temperature is recorded after each one minute. The observations are listed below

From the above observations, what conclusion do you draw about the melting point of ice?

State the melting point of ice.

What determines the pitch of a sound?

Draw a diagram to show the wave pattern of high pitch note and a low pitch note, but of the same loudness.

The energy of a flying kite is kinetic energy.

Kinetic energy = 1/2 × mass × ............

When a boy doubles his speed, his kinetic energy becomes

Define the term kinetic energy. Give one example of a body which possesses kinetic energy.

State two factors on which the kinetic energy of a moving body depends.

Two toy-cars A and Bof masses 200 g and 500 g respectively are moving with the same speed. Which of the two has greater kinetic energy?

A cyclist doubles his speed. How will his kinetic energy change: increase, decrease or remain same?

Write the expression for the kinetic energy of a body explaining the meaning of the symbols used.

A ball of mass M is moving with a speed v. What is its kinetic energy?