Definitions
Pictures
Wave Equation
Complete the sentence
Refraction
100
What is the law of conservation of energy?
Energy cannot be created or destroyed, only transformed from one type to another.
100
Amplitude of the wave
100
These types of waves can travel through empty space where matter is not present
Electromagnetic waves
100
The highest point in a wave is called the _______
Crest/peak
100
In this diagram, which is the angle of incidence?
θ1
200
A measure of how far a wave travels in a given amount of time
Speed (of the wave)
200
What types of waves are shown here?
Transverse and Longitudinal
200
State the equation used to determine wavelength of a wave
Wavelength = velocity ÷ frequency
200
"The _______ the frequency, the _______ the wavelength." This is the relationship between frequency and wavelength of a wave.
Higher/Lower;
Smaller/Longer
200
Which medium has a lower refractive index?
Diamond
300
Measure of how many waves pass a point in a given period of time
Frequency
300
Using this image, describe how you would measure the wavelength of the wave.
Middle of compression to middle of next compression (A --> A); OR
Middle of rarefaction to middle of next rarefaction (B --> B);
300
(Calculate) What is the period of a wave with a wavelength of 0.15m and a velocity of 9 m/s?
Give correct units.
0.0167 s
300
(Complete the sentence)
Sound waves cannot travel through ______ because ________
a vacuum/space;
no particles to carry energy
300
What is missing from this diagram?
Missing the normal
400
The energy that particle has due to its motion or position
Mechanical Energy
400
What are the two electromagnetic waves missing from this diagram?
Infrared;
X-ray
400
(Calculate) Determine the wavelength when the wave has a velocity of 330 m/s and a frequency of 6.60x102 Hz.
0.5 m
400
Chemical energy, elastic potential, and gravitational potential energy are examples of ____________.
Stored Energy
400
What are the 3 rules of refraction?
1) Going through less dense medium, light refracts away from the normal;
2) Going through more dense medium, light refracts towards the normal
3) If incident ray is parallel to the normal, there's no refraction
500
In the context of refraction, define the normal.
Imaginary line that is perpendicular (90˚) to the surface boundary at the point where the incident ray goes through the boundary.
500
What is incorrect about this diagram?
The lines show how a convex lens would bend light. This is a concave lens.
500
(Calculate) Determine the speed of a wave with a frequency of 3x1011 Hz and a wavelength of 7.70x10-7 m. Give answer with the units.
231000 m/s;
2.31 x 105 m/s
500
Refraction is caused by a change in the _______ of a wave as they pass from one medium to another with different _________.
Speed;
refractive indexes/densities
500
Use zoom annotate to draw the angle of refraction on the diagram.
draw the normal; draw the refracted ray; draw the 2nd normal; draw the 2nd refracted ray