Question # 1

the shortest distance between two points is called.

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Speed

Acceleration

Distance

Displacement

A ball is thrown up with 20 ms-1 at an angle of 60 ^owith x-axis , the velocity of the ball at the top position is.

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0 ms-1

10 ms-1

20 ms-1

16 ms-1

The work done in gravitational field

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Depend upon the path

Does not depend upon the path

(+)ve

Zero

Force acting on the piston to move outward is.

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Compressive stoke

Power stoke

All stoke

Exhaust stoke

Total change in momentum of an isolated system is

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Always (+) ve

Always (-) ve

Has maximum value

Zero

The law of conservation of mass gives.

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Beronoulli's

Venturi relation

Torricelli's theorem

Equation of continuity

The actual efficiency of property turned petrol engine is.

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20% to 30%

30% to 35%

40% to 45%

25% to 30%

Boltzman constant 'k' has same unit as.

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Temperature

Energy

Entropy

Pressure

The velocity of a particle having SHM is 'v' at means position. If its amplitude is doubled them velocity at mean position will be

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v/2

v

2v

4 v

If the temperature of a gas is constant then <1/2 mv2> of the molecules of gas will be.

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Constant

Zero

Increase

Decrease

Inertia may expressed in

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Kg

Newton

Watt

Joule

For a diatomic gas Cv= 5R/2 then gamma for this gas is.

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5/7

4/35

7/5

35/4

The speed of sound in ari at 0 ^oC is 332 ms-1, Then the speed at 40 ^oC will be

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372 ms-1

356 ms-1

346 ms-1

332 ms-1

The dot product of two vectors A and B will be zero, if angle between A and B is

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Zero

30^o

90^o

180^o

Slope of velocity time graph describes a physical quantity called.

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Displacement

Average velocity

Average acceleration

Momentum

_______ is bio fuel

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Water

Petrol

Ethanol

Oil

Angular momentum has the same unit as

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Impulse x distance

Power x time

Linear x time

work x frequency

the change in internal energy is defined as

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Q - W

Q-T

Q + P

Q - P

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Physics Fsc Part 1 Online Test MCQs With Answers

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