Kerala (English Medium) Std 9 Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in

Question-1
Which of the following is due to position or state of strain?

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

Question-2
'Stone at a height'- which type of energy is related to this situation?

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

Question-3
The energy used in households, industries and commercial establishments are usually expressed in

(A) Joules	(B) W
(C) KWh	(D) None of these.

Question-4
Which of the following is the the ability to do work?

(A) Energy	(B) Velocity
(C) Momentum	(D) Force

Question-5
Total energy of the universe remains

(A) The same	(B) Different
(C) Constant	(D) Variable

Question-6
Which of the following is the energy possessed by a body by virtue of its motion?

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

Question-7
Which of the following is the correct expression for potential energy of an object?

(A) P E = mgh	(B) P E = 1/2 m v²
(C) P E = 2m g h	(D) P E = mg/h

Question-8
What is the velocity of body of mass 100 g having a K.E. of 20 J?

(A) 2 m s^-1	(B) 20 m s^-1
(C) 40 m s^-1	(D) 400 m/s

Question-9
Which one of these physicists is from Britain?

(A) Thomas Alva Edison	(B) James Prescott Joule
(C) C.V.Raman	(D) None of these

Question-10
A compressed spring possesses

(A) Kinetic energy	(B) Elastic potential energy
(C) Electrical energy	(D) Magnetic energy

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Std 9

Kerala (English Medium)

Practice in Related Chapters
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Work,Energy and Power
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