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Q: If the velocity of a body becomes half, the kinetic energy of the body becomes: (Entry test 2011)

A) One fourth

B) double

C) four times

D) half

Q: A force of 6 N acts horizontally on a stationary mass of 2 kg for 4 s. The kinetic energy in joule is: (Entry test 2009)

A) 72

B) 12

C) 144

D) 48

Q: The two bodies with masses m₁ and m₂ have equal kinetic energies. If m1 and m₂ are their respective momenta then the ratio between m₁ and m₂ is: (Entry test 2009)

A) m₁:m₂

B) m₂:m₁

C) m²₁ :m²₂

D) √m₁:√m₂

Q: Light and heavy bodies have equal kinetic energies. Which one has the greater momentum? (Entry test 2009)

A) heavy body

B) light body

C) both a and b

D) none

Q: A 6.0-kg block is released from rest 80 m above the ground. When it has fallen 60 m, its kinetic energy is approximately: (Entry test 2009)

A) 4800 J

B) 3500 J

C) 1200 J

D) 120 J

Q: The weight of a pilot diving down with an acceleration of 9.8 m/sec² will become: (Entry test 2011)

A) Double

B) Half

C) Zero

D) Negative

Q: The unit of angular momentum in SI system is: (Entry test 2007)

A) kg·m

B) kg·m²/kg

C) kg·m²/s

D) kg²·s

Q: For what value of angle θ must a curve be banked to prevent skidding at 90 km/h if the radius is 100 m? (Entry test 2015)

A) 15°

B) 20°

C) 32°

D) 40°

Q: A sphere, disc and hoop of equal radius are released from the top of the inclined plane of height h. Which statement is correct? (Entry test 2005)

A) The disc will reach first

B) Sphere will reach first

C) Hoop will reach first

D) They reach simultaneously

Q: A curve of radius 150 m on a motorway is banked at 30°. What is the maximum speed a car can turn without skidding? (Entry test 2010)

A) 10 m/s

B) 19 m/s

C) 29 m/s

D) 35 m/s

Q: A body weighs 72 kg on the surface of the earth. Its weight on the moon will be: (Entry test 2010)

A) 72 kg

B) 12 kg

C) 24 kg

D) 0 kg

Q: When a body moves in a circle, the angle between its linear velocity v and angular velocity ω is always: (Entry test 2010)

A) 0°

B) 180°

C) 360°

D) 90°

Q: A body moving in a circle of radius r with variable speed has what acceleration? (Entry test 2010)

A) centripetal

B) tangential

C) angular

D) all of the above

Q: The ratio of inertial mass to gravitational mass is equal to: (Entry test 2010)

A) 1/2

B) 1

C) 2

D) no fixed number

Q: An object in a satellite orbiting Earth is weightless because: (Entry test 2009)

A) g=0

B) no force acts on it

C) its motion is free fall

D) it is far from Earth

Q: Centripetal force acting on a body rotating in a circle of radius "r". If the body moves in a circle of radius half of the initial value keeping other quantities constant, then the percentage change in centripetal force is: (E.T 2012)

A) 300%

B) 100%

C) 400%

D) 200%

Q: The angular displacement made by the minute hand after 6 minutes is: (Entry test 2012)

A) 30°

B) 20°

C) 90°

D) 180°

Q: The direction of torque is: (Entry test 2000)

A) Parallel to plane

B) Perpendicular to plane

C) Anti-parallel to plane

D) Same as plane

Q: The time period of a communication satellite is: (Entry test 2009)

A) 1 hour

B) 2 hours

C) 12 hours

D) 24 hours

Q: A large water tank open at the top has a small hole at the bottom. When the water level is 30 m above the hole, the speed of water leaking is: (Entry test 2015)

A) 2.5 m/s

B) 24 m/s

C) ?

D) Cannot be calculated unless area is given