Deck 16: Oscillations

Question 1

Decide whether each of these statements is True (T) or False
A system oscillating with simple harmonic motion has:
(i) The restoring force always directed to the same fixed point.
(ii) The restoring force proportional to the displacement.

A) (i) T (ii) T
B) (i) T (ii) F
C) (i) F (ii) T
D) (i) F (ii) F

Answer 1

A

Question 2

Decide whether each of these statements is True (T) or False
An object oscillating with simple harmonic motion has an amplitude of 0.1 m and a periodic time of 3 s.
(i) The maximum velocity will be -0.21 m/s.
(ii) The maximum acceleration will be -0.21 m/s2.

A) (i) T (ii) T
B) (i) T (ii) F
C) (i) F (ii) T
D) (i) F (ii) F

Answer 2

B

Question 3

The frequency of oscillation of an object oscillating with simple harmonic motion will be doubled if:

A) The mass is doubled
B) The mass is quadrupled
C) The restoring force per unit displacement is doubled
D) The restoring force per unit displacement is quadrupled

Answer 3

D

Question 4

The energy of an object oscillating with simple harmonic motion will be doubled if:

A) The amplitude doubles
B) The frequency doubles
C) The mass doubles
D) The periodic time doubles

Question 5

The length of the cord for a simple pendulum to have a periodic time of 1 s, take the acceleration due to gravity to be 9.8 m/s2, is:

A) 0.25m
B) 0.99m
C) 1.56m
D) 9.8m