MECHANICAL WAVES PART 1 | Physics

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MECHANICAL WAVES PART 1

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12th - University

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Slide 1
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MECHANICAL WAVES PART 1
MISS HUSNA
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Question 2
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Q.
Before start the lesson, pls update your current emotion right now
no correct answer
Happy
Sleepy
Happy
alternatives
Sleepy
answer explanation
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Slide 3
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DEFINITION
A disturbance that transfers energy through matter or space.

mechanical waves need medium to help it travel or propagate.
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Slide 4
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Play the video to learn the concept of mechanical waves through animation
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Slide 5
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Question 6
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Q.
1. What is a mechanical wave?
answer choices
A wave that is a vibration in matter, transferring energy through a material.
Any kind of wave that has peaks and troughs
Any oscillation that transfers energy.
A wave that is created by a machine
 A wave that is a vibration in matter, transferring energy through a material.
alternatives
Any kind of wave that has peaks and troughs
Any oscillation that transfers energy.
A wave that is created by a machine
answer explanation
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Slide 7
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click the play button to watch the next video
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Slide 8
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Question 9
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Q.
2. The maximum distance that the particles of a wave’s medium vibrate from their rest position
answer choices
frequency
wavelength
wave speed
amplitude
 frequency
alternatives
wavelength
wave speed
amplitude
answer explanation
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Question 10
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Q.
3. Which of the following terms describes the number of waves that pass by each second?
answer choices
frequency
Wavelength
peak
trough
frequency
alternatives
Wavelength
peak
trough
answer explanation
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Question 11
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Q.
4. When the frequency of a wave increases, what happens to the wavelength?
answer choices
The wavelength is not directly affected by the frequency of a wave.
The wavelength increases.
The wavelength decreases
More specific information is needed to form a conclusion about the wavelength.
The wavelength is not directly affected by the frequency of a wave.
alternatives
The wavelength increases.
The wavelength decreases
More specific information is needed to form a conclusion about the wavelength.
answer explanation
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Slide 12
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click the play button to watch the next video
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Slide 13
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Question 14
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5. A wave in which the particles of the medium move perpendicularly to the direction the wave is traveling
answer choices
surface wave
tranverse wave
electromagnetic wave
longitudinal wave
surface wave
alternatives
tranverse wave
electromagnetic wave
longitudinal wave
answer explanation
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Question 15
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Q.
6. A wave in which the particles of the medium vibrate parallel to the direction of the wave motion
answer choices
mechanical wave
surface wave
longitudinal wave
wave
mechanical wave
alternatives
surface wave
longitudinal wave
wave
answer explanation
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Question 16
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Q.
7. Which of the following is NOT a characteristic of mechanical waves?
answer choices
They consist of disturbances or oscillations of a medium.
They transport energy.
They travel in a direction that is at right angles to the direction of the particles of
the medium.
They are created by a vibrating source.
They consist of disturbances or oscillations of a medium.
alternatives
They transport energy.
They travel in a direction that is at right angles to the direction of the particles ofthe medium.
They are created by a vibrating source.
answer explanation
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Question 17
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Q.
8. What property of this wave is represented by the letter "A"
answer choices
Amplitude
Crest
Trough
Wavelength
Amplitude
alternatives
Crest
Trough
Wavelength
answer explanation
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Question 18
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Q.
9. What property of this wave is represented by the letter "B"
answer choices
Amplitude
Crest
Trough
Wavelength
Amplitude
alternatives
Crest
Trough
Wavelength
answer explanation
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Question 19
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Q.
10. The number of wavelengths that pass a point each per second is:
answer choices
frequency
period
longitudinal
tranverse wave
frequency
alternatives
period
longitudinal
tranverse wave
answer explanation
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Slide 20
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New term in this chapter
WAVE NUMBER
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Slide 21
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Wave Number,k
number of complete wave cycles of a wave that exist in one meter (1m) of linear space.
unit is m^-1
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Slide 22
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Our Next Lesson
Interpret Equation for Progressive Wave
Use equation for progressive wave
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Slide 23
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Thank you
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