On sunny days, why is a rainbow visible when spraying water from a hose?

Light refracts through the water droplets in the air.

Why might a company make more money by advertising on YouTube than on TV?

TV is only seen by a few million. YouTube is a few billion.

Why do light waves make no sound?

Light waves do not rely on the vibration of objects.

How are light waves and sound waves different?

Sound waves can only travel through matter.

What causes the colors of a rainbow to be see when light passes through raindrops?

The light is refracted (bent) by the raindrops.

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Physical Science Studies Weekly #6

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#light waves #sound waves

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Questions 12

Answers

1
On sunny days, why is a rainbow visible when spraying water from a hose?
Light refracts through the water droplets in the air.
Rainbows show up anytime you spray water from a hose.
The light from the sun is shining as mostly red light.
Rainbows hid in water vapor.
2
Why might a company make more money by advertising on YouTube than on TV?
TV is only seen by a few million. YouTube is a few billion.
People really do not watch YouTube.
Magazines would be the best means of advertising.
The audience is more for children and they decide.
3
Why do light waves make no sound?
Light waves are refracted before they can make a sound.
Light waves are reflected before they can make a sound.
Light waves do not rely on the vibration of objects.
Light waves are absorbed before they can make a sound.
4
How are light waves and sound waves different?
Sound waves are small and light waves are large.
Sound waves travel faster than light waves.
Sound waves can only travel through matter.
Light waves are made of white light.
5
What is the name of a document that shows the person who first invented something?
a patent
a declaration
a copyright
a trademark
6
Which form of energy travels in waves?
no form of energy travels in waves
sound energy
both light and heat energy
light energy
7
What causes the colors of a rainbow to be see when light passes through raindrops?
The light travels in a straight line through the raindrops.
The light is absorbed (soaked up) by the raindrops.
The light is reflected (bounced) off the raindrops.
The light is refracted (bent) by the raindrops.
8
Which of the following objects was not invented by Thomas Edison?
the motion picture camera
the light bulb
the telephone
the first voice recordings
9
Which forms of energy are produced by a light bulb?
light and nuclear energy
heat and mechanical energy
heat and light energy
light and sound energy
10
Which form of energy travels faster than anything in the universe?
heat energy
electrical energy
sound energy
light energy
11
What is missing between the sun and the animal in this energy chain?
water
animals
soil
plants
12
What form of energy must travel through matter (solid, liquid, or gas)?
both light and sound energy
no form of energy
sound energy
light energy

Physical Science Studies Weekly #6 Flashcards | StudBud