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

Question-1
An object of mass 15 kg is moving with a uniform velocity of 4m/s. What is the kinetic energy possessed by the object.

(A) 120J.	(B) 100J.
(C) 220J.	(D) 200J.

Question-2
What should be the power of engine used to lift 250 litres of water in 1 minute to a height of 15m?

(A) 36750J	(B) 612.5J
(C) 36750W	(D) 612.5W

Question-3
What is the unit of work done?

(A) Newton.	(B) Walt.
(C) Joule.	(D) Coulomb

Question-4
The capacity for doing work is called _______________.

(A) Work.	(B) Power.
(C) Energy.	(D) Force.

Question-5
A bullet of mass 0.2kg is fired with a velocity of 100ms^-1 .What is the kinetic energy?

(A) 10000J	(B) 1000J
(C) 10000erg	(D) 1000erg

Question-6
According to ______________ energy can only be converted from one form to another, it can neither be created nor be destroyed.

(A) 1^stLaw of Newton.	(B) Uncertainty Principle.
(C) Law of Conservation of Energy.	(D) 3^rdLaw of Newton.

Question-7
A compressed spring possesses _________ energy.

(A) Kinetic	(B) Elastic potential
(C) Electric	(D) Magnetic

Question-8
A fast moving cricket ball hits the stumps, is an example of _______________.

(A) Potential Energy	(B) Kinetic Energy
(C) Momentum	(D) Force

Question-9
The unit of power in the the Mks system is.

(A) Joule.	(B) Erg.
(C) Newton.	(D) Watt.

Question-10
An engine of 9.8 kw power is to pump water from a well of 90m depth. Calculate the quantity of water it can pump out in one hour?

(A) 40,000g.	(B) 4000kg.
(C) 4000g.	(D) 40,000kg.

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Std 9

Andhra Pradesh (English Medium)

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