PHY101 Final Term Solved Complete Paper Set 2

PAK301 FINAL TERM SOLVED PAPER (VISIT VURANK FOR MORE)

As a 2.0-kg block travels around a 0.50-m radius circle it has an angular speed of 12 rad/s. The circle is parallel to the xy plane and is centered on the z axis, a distance of 0.75m from the origin. The z component of the angular momentum around the origin is:

1. 6.0kg · m2/s
2. 9.0kg · m2/s
3. 11 kg · m2/s
4. 14 kg · m2/s

Correct answer: 6.0kg · m2/s

A net torque applied to a rigid object always tends to produce:

1. linear acceleration
2. rotational equilibrium
3. angular acceleration
4. rotational inertia

Correct answer: angular acceleration

An object attached to one end of a spring makes 20 vibrations in 10 s. Its angular frequency is:

1. 1.57 rad/s
2. 2.0 rad/s
3. 6.3 rad/s

Correct answer: 2.0 rad/s

In simple harmonic motion, the restoring force must be proportional to the:

1. amplitude
2. frequency
3. velocity
4. displacement

Correct answer: displacement

Mercury is a convenient liquid to use in a barometer because:

1. it is a metal
2. it has a high boiling point
3. it expands little with temperature
4. it has a high density

Correct answer: it has a high density

The units of the electric field are:

1. J/m
2. J/(C·m)
3. J/C
4. J·C

Correct answer: J/m

A farad is the same as a

1. J/V
2. V/J
3. C/V
4. V/C

Correct answer: J/V

We desire to make an LC circuit that oscillates at 100 Hz using an inductance of

2. 5H. We also need a capacitance of: