G4 T3 Waves and Information L2 Patterns of Waves March 15

G4 T3 Waves and Information L2 Patterns of Waves

Objective: I can describe how waves can oscillate.

Do Now

1- The highest point in a wave is (crest/trough)

2- The highest point of a wave from its resting position is called (wavelength/ amplitude)

3- When a wave is moving perpendicular to the particle's motion, this best describes(transverse wave/ longitudinal wave).

4-Define frequency

Ham Radio

Patterns in Wave Characteristics

• Amplitudes, wavelength and frequency of waves follow a pattern

• If you observe the properties of part of a wave, you can figure out how the rest of the wave is doing.

• One important pattern of waves that the can Oscillates.

Oscillates:

• Move back and forth between two points.

• Some other objects that can oscillates like pendulums and rocking chairs.

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Wave Period

• The amount of times it takes for a wave to complete one back and forth.

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Remember

• Waves with high frequency have shorter wavelength

Wave patterns

Objective: I can tell the difference between circular and plane waves.

Do Now

1- When frequency increases, the distance between waves will be shorter (true/false)

2- The highest point in a wave from its resting position is called ( wavelength/ amplitude/ crest)

3- The lowest point in a wave is called (trough/ crest).

4-Define wave period

Wave patterns:

• In order for a wave to appear, a disturbance must happen in a medium.

• Appear:

• To be seen or show up

• Different disturabnce cause waves with different patterns.

Circular wave:

• Disturbance at one point

• Waves will spread out in all directions.

• Waves look like circles.

• Circular waves:

• Waves that caused by a disturbance at one single point.

plane waves:

• For example, if you push the water with your hands, the waves will move in parallel lines.

• move in parallel lines

• look like stripes

• Plane wave:

• The wave that is made when a disturbance happens to a line of matter.