Unit - 4.3 Various Form Of Energy - ICSE STD 8 PHYSICS Questions - Vidyadip

Question types

Unit - 4.3 Various Form Of Energy question types

39 questions across 6 question groups — pick any mix to generate a PHYSICS paper with step-by-step answer keys.

39

Questions

6

Question groups

5

Question types

MCQ

[1 Mark Question Answer]

[2 Mark Question Answer]

fill in the blanks.

TRUE / FALSE

Match the following.

Sample Questions

Unit - 4.3 Various Form Of Energy questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1MCQ1 Mark

When a person speaks in front of a microphone, the sound energy changes into :

A
loud sound energy
B
magnetic energy
C
chemical energy
✓
electric energy

Answer: D.

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Q 2MCQ1 Mark

Strong wind turns the blades of wind turbine because it possesses :

A
potential energy
✓
kinetic energy
C
both (a) and (b)
D
none of these

Answer: B.

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Q 3MCQ1 Mark

The cause of water cycle in nature is :

A
chemical energy
B
nuclear energy
✓
solar energy
D
kinetic energy of wind

Answer: C.

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Q 4MCQ1 Mark

The ultimate source of energy on the planet earth is :

✓
sun
B
coal
C
petroleum products
D
molten lava within the earth

Answer: A.

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Q 5MCQ1 Mark

Burning of paper is an example of conversion of :

A
heat energy into light energy
B
chemical energy into heat energy
C
chemical energy into light energy
✓
both (b) and ( C)

Answer: D.

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Q 6[1 Mark Question Answer]1 Mark

By giving examples, explain how sun is the ultimate source of energy on planet earth

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Q 7[1 Mark Question Answer]1 Mark

Give three examples of inter-conversion of chemical energy into other forms of energy.

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Q 8[1 Mark Question Answer]1 Mark

Briefly, describe nuclear energy and its one misuse.

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Q 9[1 Mark Question Answer]1 Mark

Briefly, describe nuclear energy and its one use

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Q 10[1 Mark Question Answer]1 Mark

Name two devices which convert electric energy into :-magnetic energy

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Q 11[2 Mark Question Answer]2 Marks

Name two devices which convert electric energy into :-heat and light energy

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Q 12[2 Mark Question Answer]2 Marks

Name three devices/industries in which heat energy is put to some useful work.

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Q 13[2 Mark Question Answer]2 Marks

What kind of energy changes take place in the bodies of living beings, so as to produce mechanical energy.

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Q 14fill in the blanks.1 Mark

(electric, kinetic)
A loudspeaker converts _____________ energy into sound energy.

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Q 15fill in the blanks.1 Mark

(chemical, light)
During digestion of food the _____________ energy of food changes into heat energy.

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Q 16fill in the blanks.1 Mark

(chemical, light)
During photosynthesis, the _____________ energy changes into chemical energy.

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Q 17fill in the blanks.1 Mark

(light, heat)
Nuclear energy is released in the form of _____________ energy when an atom splits.

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Q 18fill in the blanks.1 Mark

(electric, kinetic)
In hydroelectric dams the _____________ energy of flowing water is transformed into electric energy.

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Q 19TRUE / FALSE1 Mark

In electric wind stations, the potential energy of wind changes into electric energy.

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Q 20TRUE / FALSE1 Mark

The source of energy in a nuclear bomb is its chemical energy.

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Q 21TRUE / FALSE1 Mark

An electric bulb converts electric energy into heat energy only

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Q 22TRUE / FALSE1 Mark

The energy in an electric cell is stored in the form of chemical energy.

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Q 23TRUE / FALSE1 Mark

Magnetic energy always causes attraction.

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Q 24Match the following.5 Marks

Column A	Column B
1. A device which converts electric energy into heat energy only.	(a) Microphone
2. A device which converts electric energy into mechanical energy.	(b) Electric generator
3. A device which converts sound energy into electric energy.	(c) Electric motor
4. A device which converts light energy into electric energy.	(d) Electric geyser
5. A device which converts mechanical energy into electric energy.	(e) Photo-voltaic cell

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