Light
Sound
light and sound waves
light and sound waves pt 2
Light 2
100
All light waves are part of the.....
Electromagnetic Spectrum
100
What is the unit of measurement for sound?
Hertz (Hz)
100
The distance between waves is called what?
wavelength
100
What is the difference between kinetic energy and potential energy?
Potential Energy is stored, while Kinetic is used energy
100
A convex lens causes light to ___________.
Converge.
200
The highest point of a transverse wave is called what?
crest
200
Fill in the blanks:
Sound are vibrations where ______ is transferred but not _______.
Energy, Matter
200
What is the unit for energy?
A. Watt
B. Celsius
C. Joule
D. Kilogram
Joule
200
True or False
A longitudinal wave is produced when the vibrations travel parallel to the wave
True
200
Which one shows the correctly reflected ray?
D
300
The lowest point of a transverse wave is the what?
tough
300
Hertz (Hz) is the number of _______ that pass a point each ________.
Waves, second
300
Why is it that we see thunder before we can hear it
Because the speed of light is faster than the speed of sound
300
When waves have a greater frequency, they will have more what?
Energy
300
A good flashlight can have both convex and concave lens. What is the reason to this?
Convex - spreads light to see more
Concave - gathers light to concentrate at a single point (and travels further)
400
What is refraction?
The bending of a light wave as it passes from one medium into another, causing it to slow down.
400
Through which medium (solid, liquid, gas) does sound travel faster at?
Solid
400
How many degrees is the angle of incident?
34 degrees
400
What is frequency?
Is the number of waves produced in any given time.
400
Why do black things and dark colors get hot under the sun?
it absorbs every color of light.
500
What is time it takes for a wave to complete one cycle called?
period
500
What is amplitude?
You may draw to explain.
The distance a wave goes back and forth from the centre.
500
Using absorption and reflection, discuss how the colour green is shown in an object
Absorbs all light but green and reflects green light to our eyes
500
For the following wave, compression occurs at what point of the wave?
500
If you have white light travel through a blue filter that touches a red object. What colour would the red object be?
Black