Default Title

Question (11)

QN006342

A pendulum bob at its highest position has maximum:

(A) Kinetic energy
(B) Mechanical energy loss
(C) Potential energy
(D) Heat energy

Correct Answer: C

Explanation:

PE is maximum at highest point.

Link:

Report Error

Question (12)

QN006343

A body of mass 5 kg moving at 2 m/s has kinetic energy:

(A) 5 J
(B) 10 J
(C) 20 J
(D) 25 J

Correct Answer: B

Explanation:

KE = ½ × 5 × 2² = 10 J.

Link:

Report Error

Question (13)

QN006344

Mechanical energy can exist in the form of:

(A) Only kinetic energy
(B) Only potential energy
(C) Both kinetic and potential energy
(D) Only heat energy

Correct Answer: C

Explanation:

Mechanical energy includes KE and PE.

Link:

Report Error

Question (14)

QN006345

A body raised above ground stores energy due to its:

(A) Colour
(B) Shape
(C) Position
(D) Temperature

Correct Answer: C

Explanation:

Potential energy depends on position.

Link:

Report Error

Question (15)

QN006346

A truck and a bicycle move with the same speed. Which has greater kinetic energy?

(A) Bicycle
(B) Truck
(C) Both equal
(D) Cannot be determined

Correct Answer: B

Explanation:

Greater mass means greater kinetic energy.

Link:

Report Error

Question (16)

QN006347

A 10 kg object at height 2 m possesses potential energy:

(A) 20 J
(B) 100 J
(C) 200 J
(D) 400 J

Correct Answer: C

Explanation:

PE = 10 × 10 × 2 = 200 J.

Link:

Report Error

Question (17)

QN006348

When a stretched rubber band is released, its potential energy changes into:

(A) Nuclear energy
(B) Kinetic energy
(C) Heat energy only
(D) Light energy

Correct Answer: B

Explanation:

Stored PE converts into KE.

Link:

Report Error

Question (18)

QN006349

A body moving with velocity 10 m/s has kinetic energy 500 J. Its mass is:

(A) 5 kg
(B) 10 kg
(C) 20 kg
(D) 25 kg

Correct Answer: B

Explanation:

500 = ½ × m × 100, so m = 10 kg.

Link:

Report Error

Question (19)

QN006350

The total mechanical energy of a freely falling object remains nearly constant because:

(A) Potential energy converts into kinetic energy
(B) Mass decreases continuously
(C) Velocity becomes zero
(D) Gravity disappears

Correct Answer: A

Explanation:

PE converts into KE during fall.

Link:

Report Error

Question (20)

QN006351

A 3 kg object moving at 6 m/s has kinetic energy:

(A) 18 J
(B) 36 J
(C) 54 J
(D) 72 J

Correct Answer: C

Explanation:

KE = ½ × 3 × 6² = 54 J.

Link:

Report Error

Question (11)

A pendulum bob at its highest position has maximum:

Explanation:

Link:

Question (12)

A body of mass 5 kg moving at 2 m/s has kinetic energy:

Explanation:

Link:

Question (13)

Mechanical energy can exist in the form of:

Explanation:

Link:

Question (14)

A body raised above ground stores energy due to its:

Explanation:

Link:

Question (15)

A truck and a bicycle move with the same speed. Which has greater kinetic energy?

Explanation:

Link:

Question (16)

A 10 kg object at height 2 m possesses potential energy:

Explanation:

Link:

Question (17)

When a stretched rubber band is released, its potential energy changes into:

Explanation:

Link:

Question (18)

A body moving with velocity 10 m/s has kinetic energy 500 J. Its mass is:

Explanation:

Link:

Question (19)

The total mechanical energy of a freely falling object remains nearly constant because:

Explanation:

Link:

Question (20)

A 3 kg object moving at 6 m/s has kinetic energy:

Explanation:

Link:

Excel With Tutors

ExcelWithTutors

For Student

For Tutors

Learn

OUR POLICY