Transcript Waves Common Assessment Review

Waves Common Assessment
Review
We are learning to: demonstrate how waves
transfer energy.
We are looking for: a disturbance or variation that
transfers energy from one point to another point in
a medium.
Transverse waves- wave and medium move in
direction that is perpendicular to each other
Longitudinal waves- wave and medium move in
same direction
A transverse wave…..
A.
B.
C.
D.
E.
Vibrates particles perpendicular
to the direction of wave
Vibrates particles parallel to the
direction of the wave
Vibrates both parallel and
perpendicular to the direction of
the wave
Vibrates particles in one direction
Help! I don’t understand.
What type of wave
is represented by
picture?
A.
B.
C.
D.
E.
Transverse
Longitudinal
Surface
Seismic
Help! I don’t
understand.
A wave is a disturbance that transfers
A.
B.
C.
D.
E.
matter.
particles.
energy.
a medium.
Help! I don’t
understand.
What do you call the material that a
wave travels through?
A.
B.
C.
D.
E.
Plasma
Space
Vacuum
Medium
Help! I don’t
understand.
What type of
wave is
represented by
the animation?
A.
B.
C.
D.
E.
Longitudinal
Transverse
Surface
Seismic
Help! I don’t
understand.
We are learning to: describe the properties of
waves.
We are looking for:
Wavelength-distance from crest to crest (transverse
wave), or from compression to compression
(longitudinal wave)
Frequency-number of waves that pass a given point
each second
Amplitude-distance from rest position to the crest
(transverse wave); measures how compressed the
particles of the medium are (longitudinal wave);
determines the amount of energy of each wave
In the diagram, identify the wave property
“A”
A. Frequency
B. Amplitude
C. Wavelength
D. Help! I don’t understand.
Which of the following is true
about waves in the diagram?
A. Wave X has a higher
frequency than Wave Y
B. Wave X has a lower
frequency than Wave Y
C. Wave X has the same
frequency as Wave Y
D. Help! I don’t
understand.
Which of the waves in the
picture has the greatest
amplitude?
A. 1
1
2
3
B. 2
C. 3
D. Help! I don’t understand.
Which property measures the amount of
energy transferred by a wave?
A.
B.
C.
D.
Wavelength
Frequency
Amplitude
Help! I don’t
understand.
We are learning to demonstrate how waves transfer energy.
We are looking for how waves interact with an object or
other waves. They either:
Transmit-wave energy passes through an object.
Reflect-wave energy bounces off an object.
Refract – wave changes speed as it passes from one
medium to another medium
Diffract – wave spreads out as it passes through an opening
or around the edge of a barrier
Absorb-wave energy is taken in by an object they encounter.
Interference-wave energy of multiple waves is combined.
13
What happens to the energy of a wave when
the crest of a transverse wave meets the crest
of a second transverse wave?
A. Energy decreases.
B. Energy increases.
C. Energy stays the
same.
D. I don’t get it! Help!
What is it called when a wave
bounces off of a barrier?
a.
b.
c.
d.
Refraction
Reflection
Diffraction
Help! I don’t know.
15
What happens to waves as they go
through an opening or around a
corner of an object?
A.
B.
C.
D.
They are refracted.
They are reflected.
They are diffracted.
Help! I don’t know.
16
As waves go through different mediums,
what happens to them?
A. Waves change speed
and are reflected.
B. Waves change speed
and are refracted.
C. Waves change speed
and are diffracted.
D. Help! I don’t know.
17
We are learning to: demonstrate that
vibrations produce longitudinal waves which
move away from the original source.
We are looking for: an explanation of the
following:
• A medium is required (mechanical wave)
• A sound is produced (acoustic energy)
• A vibration is required to produce sound
waves (longitudinal wave)
Energy is required to create a sound wave.
Sound energy is also known as . . .
A. Elastic potential
energy
B. Radiant energy
C. Acoustic energy
D. Thermal energy
E. Help! I don’t
understand.
How does sound transfer energy?
A. By vibration of a
medium, producing a
transverse wave.
B. By vibration of a
medium, producing a
longitudinal wave.
C. By vibration of a
medium, producing a
surface wave.
D. Help! I don’t know.
Sound cannot be heard in which of the
following locations?
A.
B.
C.
D.
E.
In a building
Under water
In space
In the forest
Help! I don’t know.
We are learning to: identify the properties of
sound.
We are looking for: the identification of the
properties of sound.
Intensity- how much energy sound has
Loudness- our perception of intensity
Frequency- number of vibrations that pass a
specific point in a period of time
Pitch- our perception of frequency (high and
low pitch) (i.e. Doppler Effect)
As the frequency of a sound wave
decreases. . . .
A. Pitch increases.
B. Pitch decreases.
C. Pitch stays the
same.
D. Help! I don’t know.
An ambulance is coming towards you.
What happens to the sound waves?
A. Frequency decreases
and pitch decreases
B. Frequency increases
and pitch decreases
C. Frequency decreases
and pitch increases
D. Frequency increases
and pitch increases
E. Help! I don’t know.
How are loudness and intensity
related?
A. The louder the sound
the less the intensity
B. The louder the sound
the more the intensity
C. There is no relationship
between loudness and
intensity
D. Help! I don’t know.
We are learning to: describe electromagnetic waves and give specific
examples of several types.
We are looking for:
1. Description:
-transverse waves that change between electric and magnetic fields.
-waves that do not require a medium
-the energy that is transferred by electromagnetic waves
(electromagnetic radiation)
2. Examples of EM waves based on wavelengths and frequency:
-Radio wave-longest wavelength; lowest frequency
-Infrared
-Visible light
-Ultraviolet
-x-ray
-gamma rays-shortest wavelength; highest frequency
One characteristic of EM waves is:
A. travels as a
longitudinal wave
B. does not require a
medium
C. does not travel as a
transverse wave
D. I need help!!
Which form of electromagnetic wave has the
shortest wavelength and the greatest energy?
A.
B.
C.
D.
E.
Radio waves.
Visible light waves.
Ultraviolet wave.
Gamma rays.
Help! I don’t
understand.
Which wave on the EM spectrum has the
lowest frequency and longest wavelength?
A.
B.
C.
D.
E.
Radio waves
X-rays
Visible light
Ultra violet
Help! I don’t
understand.
What is the only EM wave humans can
see?
A.
B.
C.
D.
E.
X-rays
Ultra Violet rays
Visible Light
Infrared
Help! I don’t
understand.