Free Printable Physics Quiz

1.

A mass is suspended from a spring having spring constant 'K' is displaced vertically and released, it oscillates with period "T'. The weight of the suspended is ?

(g = gravitational acceleration)

a)

$\frac{KTg}{4\pi^2}$

b)

$\frac{KT^2g}{4\pi^2}$

c)

$\frac{KTg}{2\pi^2}$

d)

$\frac{KT^2g}{2\pi^2}$

2.

A body of mass m is attached to the lower end of a spring whose upper end is fixed. The spring has negligible mass. When the mass m is slightly pulled down and released, it oscillates with a time period of 3 s. When the mass m is increased by 1 kg, the time period of oscillations becomes 5 s. The value of m in kg is

a)

$\frac{9}{16}$

b)

$\frac{3}{4}$

c)

$\frac{4}{3}$

d)

$\frac{16}{9}$

3.

For a particle executing simple harmonic motion, which of the following statement/s is/are NOT correct?

(i) The restoring force is always directed towards a fixed point.

(ii) The restoring force is maximum at the extreme positions.

(iii) The acceleration of the particle is maximum at the equilibrium position

a)

only (i)

b)

(i) and (ii)

c)

only (iii)

d)

(i), (ii), and (iii)

4.

Two identical springs of constant k are connected, first in series and then in parallel. A metal block of mass m is suspended from their combination. The ratio of their frequencies of vertical oscillations will be in a ratio

a)

1:4

b)

1:2

c)

2:1

d)

4:1

5.

If the particle starts its motion from mean position, the phase difference between displacement and acceleration is

a)

2π rad

b)

π/2 rad

c)

π rad

d)

π/4 rad

6.

A particle performs linear S.H.M. starting from the mean position. Its amplitude is A and time period is T. At the instance when its speed is half the maximum speed, its displacement x is

a)

$\sqrt{\frac{3}{2}}A$

b)

$\frac{2}{\sqrt{3}}A$

c)

$\frac{A}{2}$

d)

$\frac{1}{\sqrt{2}}A$

7.

The displacement of the particle executing linear S.H.M. is x = 0.25 sin (11t +0.5) m. The period of S.H.M. is (π = 22/7)

a)

$\frac{3}{7}s$

b)

$\frac{2}{7}s$

c)

$\frac{4}{7}s$

d)

$\frac{1}{7}s$

8.

The phase difference between displacement and acceleration of a particle in a simple harmonic motion is

a)

$\frac{3\pi}{2}\ rad$

b)

$\frac{\pi}{2}\ rad$

c)

zero

d)

$\pi\ rad$

Physics Quiz

Total questions: 8

Worksheet time: 16mins

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