Chapter 13: Waves

gce 'o' level singapore waves

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Chapter 13: Waves by Mind Map: Chapter 13: Waves

1. What is a wave?

1.1. a wave is a disturbance that is produced by a vibration/oscillation and transfers energy from one place to another without transferring the medium

1.2. made up of periodic motion

1.2.1. motion repeated at regular intervals

1.2.2. e.g. swinging motion of pendulum

2. properties of wave motion

2.1. distance

2.1.1. crest

2.1.1.1. highest points of transverse wave

2.1.2. trough

2.1.2.1. lowest points of transverse wave

2.1.3. wavelength (m)

2.1.3.1. shortest distance between any 2 points in phase

2.1.4. amplitude A (m)

2.1.4.1. the maximum displacement of a point from its rest position

2.1.4.2. Amplitude of transverse wave = height of crest/depth of trough from rest position

2.2. time

2.2.1. period T (s)

2.2.1.1. time taken to produce one complete wave

2.2.1.2. = to time taken for the wave to travel through a distance equal to its wavelength

2.2.2. frequency f (Hz)

2.2.2.1. number of complete waves produced per second

2.2.2.2. = the number of crests or troughs that go past a point per second

2.2.2.3. f = 1/T

2.2.3. wave speed v (m/s)

2.2.3.1. the distance traveled by a wave per second

2.2.3.2. v = 入/T

2.2.3.3. v = f入

2.3. wave front

2.3.1. imaginary line on a wave that joins all adjacent points that are in phase

3. graphs !!

4. Longitudinal waves

4.1. waves that travel parallel to the direction of the vibration

4.1.1. motion of the individual particles of wave are parallel to the direction of propagation of a wave

5. Transverse waves

5.1. waves that travel perpendicular to the direction of the medium's particle vibration

6. wave scenarios

6.1. waves in spring

6.1.1. left-to-right

6.1.2. push-and-pull

6.2. waves in rope

6.3. waves in ripple tank