(English Medium) ICSE Class 10 - CISCE Question Bank Solutions for Physics

How much hydroelectric power is generated in India?

What is nuclear energy?

Explain the principle of producing electricity using the nuclear energy.

State two advantages of using nuclear energy for producing electricity.

State two disadvantages of using nuclear energy for producing electricity.

State the energy transformation on the following:

Electricity is obtained from wind energy.

State the energy transformation on the following:

Electricity is obtained from hydro energy.

State the energy transformation on the following:

Electricity is obtained from nuclear energy.

State four ways for the judicious use of energy.

MULTIPLE CHOICE TYPE:

The ultimate source of energy is:
(a) wood
(b) wind
(c) water
(d) sun

Renewable source of energy is:

Name two examples in which the mechanical energy of a system remains constant.

A hydroelectric power station takes its water from a lake whose water level is 50 m above the turbine. Assuming an overall efficiency of 40%, calculate the mass of water which must flow through the turbine each second to produce power output of 1 MW. (Take g = 10 m s⁻²).

Name the energy changes for the following:
electric ball 

Name the energy changes for the following:
 bicycle brakes