ICSE Worksheet for Chapter - 7 More about Energy Class 8

ICSE Worksheet for Chapter - 7 More about Energy Class 8

Worksheets For class 8

Find ICSE Worksheet for chapter-7 More about Energy class 8

1. CLASS-8
2. BOARD: ICSE
3. PHYSICS Worksheet - 7
4. TOPIC: More about Energy
5. For other ICSE Worksheet for class 8 Science check out main page of Physics Wallah.

SUMMARY

• Energy, Sources of energy: renewable and non-renewable, Solar energy, Biomass, Wind energy
• Geothermal energy, Tidal energy, hydroelectric energy, Fossil fuels, Nuclear energy
• Conservation of energy

SECTION I – OBJECTIVE

1. The S.I. unit of work is
   1. Newton
   2. Erg
   3. Joule
   4. Meter
2. The energy obtained from rising tides is called ……….. energy.
   1. Heat
   2. Light
   3. Sound
   4. Tidal
3. The capacity to do work by a body is called its
   1. Power
   2. Energy
   3. Muscular energy
   4. Force
4. Find the odd man out
   1. Solar energy
   2. Wind energy
   3. Fossil fuels
   4. Biomass
5. In a compressed spring, energy is in form of
   1. Potential energy
   2. Kinetic energy
   3. Chemical energy
   4. Sound energy
6. Which of the following is the most environment – friendly fuels?
   1. Petrol
   2. CNG
   3. Diesel
   4. none of these
7. A solar cell converts solar energy into
   1. Electrical energy
   2. Kinetic energy
   3. Heat energy
   4. NOT
8. The main source of energy to the earth is
   1. Mars
   2. Sun
   3. Moon
   4. Pluto
9. The work done by the moon in revolving around the earth is
   1. Potential energy
   2. Kinetic energy
   3. Sound energy
   4. Light energy
10. A microphone converts ………. Energy to ……….. energy.
    1. Electrical, sound
    2. Sound, electrical
    3. Heat, light
    4. Light, heat

SECTION II - SUBJECTIVE

1. Name four different forms of energy? Give examples
2. Explain the energy changes that take place in :
   1. Electric heater
   2. electric bulb
   3. electric fan
   4. generator
3. The source of all forms of energy is sun. Explain.
4. Distinguish between renewable and non-renewable sources of energy.
5. Explain:
   1. wind energy
   2. nuclear energy
   3. geothermal energy
   4. fossil fuels
6. In your day to day life, state three ways of reducing the consumption of energy.

Solutions: to worksheet-7 Topic- More about Energy

Objective Problems: