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Question (21)

QN006302

Which form of energy is used in cooking gas?

(A) Mechanical energy
(B) Chemical energy
(C) Electrical energy
(D) Nuclear energy

Correct Answer: B

Explanation:

Cooking gas stores chemical energy

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Question (22)

QN006303

A 3 kg object moving at 4 m/s has kinetic energy:

(A) 12 J
(B) 24 J
(C) 36 J
(D) 48 J

Correct Answer: B

Explanation:

KE = ½ × 3 × 16 = 24 J

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Question (23)

QN006304

Which source is a renewable form of energy?

(A) Coal
(B) Petrol
(C) Solar energy
(D) Diesel

Correct Answer: C

Explanation:

Solar energy is renewable

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Question (24)

QN006305

A hydroelectric plant mainly converts:

(A) Heat energy into sound energy
(B) Mechanical energy into electrical energy
(C) Chemical energy into electrical energy
(D) Sound energy into electrical energy

Correct Answer: B

Explanation:

Turbines convert mechanical energy into electricity

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Question (25)

QN006306

Which form of energy does a compressed spring possess?

(A) Kinetic energy
(B) Electrical energy
(C) Potential energy
(D) Light energy

Correct Answer: C

Explanation:

Compressed spring stores elastic potential energy

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Question (26)

QN006307

A 10 kg object at height 5 m has gravitational potential energy:

(A) 50 J
(B) 250 J
(C) 500 J
(D) 1000 J

Correct Answer: C

Explanation:

PE = 10 × 10 × 5 = 500 J

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Question (27)

QN006308

Which energy transformation occurs in an electric iron?

(A) Heat → Electrical
(B) Mechanical → Electrical
(C) Electrical → Heat
(D) Light → Heat

Correct Answer: C

Explanation:

Electric iron converts electrical energy into heat

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Question (28)

QN006309

A bullet moving at very high speed has large:

(A) Potential energy
(B) Kinetic energy
(C) Magnetic energy
(D) Solar energy

Correct Answer: B

Explanation:

Fast-moving bodies possess high kinetic energy

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Question (29)

QN006310

Which form of energy is possessed by an object due to its position?

(A) Kinetic energy
(B) Sound energy
(C) Potential energy
(D) Electrical energy

Correct Answer: C

Explanation:

Energy due to position is potential energy

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Question (30)

QN006311

A body of mass 1 kg moving with velocity 8 m/s has kinetic energy:

(A) 16 J
(B) 32 J
(C) 64 J
(D) 128 J

Correct Answer: B

Explanation:

KE = ½ × 1 × 64 = 32 J

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Question (21)

Which form of energy is used in cooking gas?

Explanation:

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Question (22)

A 3 kg object moving at 4 m/s has kinetic energy:

Explanation:

Link:

Question (23)

Which source is a renewable form of energy?

Explanation:

Link:

Question (24)

A hydroelectric plant mainly converts:

Explanation:

Link:

Question (25)

Which form of energy does a compressed spring possess?

Explanation:

Link:

Question (26)

A 10 kg object at height 5 m has gravitational potential energy:

Explanation:

Link:

Question (27)

Which energy transformation occurs in an electric iron?

Explanation:

Link:

Question (28)

A bullet moving at very high speed has large:

Explanation:

Link:

Question (29)

Which form of energy is possessed by an object due to its position?

Explanation:

Link:

Question (30)

A body of mass 1 kg moving with velocity 8 m/s has kinetic energy:

Explanation:

Link:

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