Topic Quiz on Oscillations

A cycle is:
1. A movement from one extreme to the other extreme of an oscillation.
2. A movement from one extreme of the oscillation to the rest position.
3. A movement from one extreme to the other extreme of an oscillation and back again.
4. Used only when the oscillating system is also describing circular motion.
The angular velocity is worked out by:
1. 2 x pi x f
2. 2 x pi / f
3. 2 x pi x T
4. 4 x pi ^2 x f^2
Resonance occurs when:
1. The forcing frequency is less than the natural frequency.
2. The forcing frequency is greater than the natural frequency.
3. The forcing frequency is equal to the natural frequency.
4. No forcing frequency is applied to the oscillating system
We can tell when a system is in resonance when:
1. The amplitude of the oscillations is zero.
2. The amplitude of the oscillations is at the normal value
3. The amplitude of the oscillations is varies between zero and a large value.
4. The amplitude of the oscillations is at a large value, much bigger than normal.
Which of the following statements is true when damping is applied to an oscillating system?
1. The amplitude increases and the resonant frequency increases slightly.
2. The amplitude rapidly decreases and the resonant frequency increases slightly.
3. The amplitude rapidly increases and the resonant frequency decreases slightly.
4. The amplitude rapidly decreases and the resonant frequency decreases slightly.
The damping provided by shock absorbers on a car has to be:
1. Light
2. Heavy
3. Critical
4. Super-critical
Resonance is useful in which of the following situations?
1. A bell ringer swinging a heavy church bell.
2. A soprano singer shattering a wine glass.
3. A mirror on a lorry vibrating.
4. Oscillations occuring in a suspension bridge.
Which one of the follwing is NOT a system in resonance.
1. A child being pushed on a swing.
2. A violin string being played with a bow.
3. An organ pipe being sounded.
4. The vibrations of a loudspeaker
An oscillation occurs at a natural frequency of 5 Hz. Which one of the following statements are true?
1. The period is 5 seconds and the resonat frequency is 5 Hz
2. The period is 0.2 s and the resonat frequency is 5 Hz
3. The period is 5 s and the resonant frequency is 0.2 Hz
4. The period is 5s and the resonant frequency is 7.5 Hz
What is the angular velocity of a 5 Hz oscillation?
1. 1.26 rad/s
2. 5 rad/s
3. 6.28 rad/s
4. 31.4 rad/s