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Cover Sheet-Block 6 Wave Properties
Standards-Physics 4 a b c d
4a. Students know waves carry energy from one place to another.
4. b. Students know how to identify transverse and longitudinal waves in
mechanical media, such as springs and ropes, and on the earth (seismic waves).
4. c. Students know how to solve problems involving wavelength, frequency, and
wave speed.
4. d. Students know sound is a longitudinal wave whose speed depends on the
properties of the medium in which it propagates.
Objective –Waves
What are waves?
Waves carry energy / information from one place to another using oscillation
Wave PropertiesIdentify theses oscillations using terms like wavelength, amplitude, frequency,
propagation direction and speed. Identify transverse and longitudinal waves in
mechanical media, such as springs and ropes, and on the earth (seismic waves).
Wave BehaviorUnderstand wave motion in a material and in a vacuum. Describe constructive and
destructive interference of more than 1 wave and /or a material. Sound is a
longitudinal wave whose speed depends on the properties of the medium in which
it propagates.
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Coversheet
WCW
Vocab- pg 183 -196 words
HW pg. 190-193 Physics to go # 2-6
Notes-Wave Properties
Problems on wave properties(back of 5 okay)
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Page #2 WCW
Warm-up: 1
Sketch and Describe
Breaking the speed of sound
Longitudinal Wave
Parallel
Surfing Wave
Transverse Wav
Perpendicular
Wrap-up 1
Explain the relationship between Wavelength, speed and frequency.
(the eq. you wrote down)
Warm-up 2
Sketch and Answer
How is a roller coaster an example of wave motion?
Critical thinking 2
Explain the phrase, “Two waves constructively interfere.”
Wrap-up
Draw Longitudinal or Compression Wave
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Page #3 Vocabulary 19 total
Pg. 183-190
11 words
1) Transverse pulse or wave: motion of medium perpendicular
to motion
2) Amplitude: the height of a wave crest, it’s the energy amount
3) Periodic wave: a repetitive pulses, ocean wave’s
4) Standing wave: wave moves between two points, “jump-rope”
5) Crest: the highest point of a wave
6) Wavelength: the distance between consecutive points of a wave “Crest to crest”
7) Frequency: the number of waves produced per unit of time, reciprocal of the
Period
8) Compression pulse or wave: longitudinal, caused by compression and expansion.
“Sound”
9) Longitudinal pulse or wave: the motion of the medium is parallel to the wave
motion. “Traffic”
10) Trough: the lowest point of a wave
11) Node: a spot on a standing wave where the medium is motionless
Pg. 196 1 word
12) Pitch: the quality of a sound dependent primarily on the frequency of the sound
waves produced by the source
Some other Vocabulary from Standards
13) Vacuum – no air
14) Light waves – electromagnetic spectrum
15) Sound waves – Need medium (material) to travel
16) Wave propagating – movement of wave through material
17) Expansion (rarefaction) – spreading of material during wave
18) Acoustic waves – sound wave from vibration in a “hole”
19) Wave speed – equal to frequency times wavelength
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Page 4 Hw pg. 190-193 Physics to go # 2-6
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Page 5 Notes Each Line Answers a Test Question
1) A wave is a repeating disturbance that transfers energy through matter or open
space.
2) Waves that use matter to transfer energy are called mechanical waves.
3) Light waves travel in both a vacuum and a medium
4) The matter through which a mechanical wave travels is called a medium
5) In transverse waves, matter in the medium moves back and forth at right angles to
the direction the wave travels.
6) In Longitudinal or compressional waves, matter in the medium moves forward and
backward in the same direction the wave travels.
7) Sound waves are compressional waves.
8) Sound waves cannot travel in outer space because they are mechanical waves they
travel through a medium
9) What is the region of a compressional wave where particles are far apart called?
rarefaction
10) What type of wave does not require matter to carry energy? Transverse
11) Amplitude is a measure of the energy in a wave.
12) A transverse wave has amplitude
13) The Wavelength is the distance from the top of one crest of a transverse wave to
the top of the next crest in that wave.
14) The frequency of a wave is how many wavelengths pass a fixed point each second
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Page 6 Problems Wave Properties
1. Right next to each picture, which wave above is a transverse wave? A
longitudinal wave?
2. On the transverse wave, label a crest and a trough. On the longitudinal wave,
label a compression and a rarefaction.
3. If the above wave completes about 6 cycles in 2 seconds, what is this wave’s
frequency?
4. What is the period of a wave?
5. If the above wave completes about 6 cycles in 2 seconds, what is this wave’s
period?
6. What is the relationship between the period of a wave and it’s frequency?