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Worksheetselectromagnetic waves 6 grade
Total questions: 20
Worksheet time: 30mins
A sound wave needs a medium to travel (to be transmitted)
True
False
A wave transmits __________
energy
gravity
germs
Light waves normally travel in a
curved lines
group of waves
straight line
A sound wave and a light wave can bounce back off an object , what is this called?
refracting
reflecting
frequency
If a light wave travels through the glass on the fish tank then into the water, what happens to the light wave?
It bends when it enters a different medium
It will not be able to travel through the water
All of the light will bounce back from the glass
What is bending of a light wave is called ?
reflection
refraction
echo
Which of these waves can travel through empty space (a vacuum)?
water
light
sound
Which of these mediums does light travel through the easiest?
gas
liquid
solid
Through which of these mediums does a sound wave travel through the easiest?
gas
liquid
solid
When a light wave is absorbed into a medium what happens to the energy from the wave?
it changes to heat energy
it turns into gravity
it becomes a stronger light wave
Light does not need matter to travel.
True
False
A light wave spreads out in all directions from the source.
True
False
In the electromagnetic spectrum which of these has the longest wave lengths?
radio
visible light (the colors)
gamma
Visible light are the only light waves we can see without using special equipment.
True
False
When the amplitude of a sound wave increases what is happening to the sound?
it is getting louder
it is getting softer
it is getting farther away
A sound wave needs particles to travel through?
Yes
No
Why do our eyes see a red apple?
Red is the only color absorbed into the apple
Red is the only color reflected off the apple
A black shirt will look black to our eyes because...
all the visible light colors are being absorbed and nothing is being reflected back to our eyes
black is the only color absorbed by the shirt
Using the chart explain why light goes more slowly through vegetable oil and faster through water.
water is more densely packed with particles so the light goes through it more slowly
vegetable oil is more densely packed with particles so the light goes through it more slowly
Using the chart, which medium will light travel through faster.
ice
diamonds
glass
