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WorksheetsLight Waves Review
Total questions: 28
Worksheet time: 30mins
Which is not correctly matched?
1 - Wavelength
2 - Trough or valley
3- Frequency
4 - Crest or peak
A rug sits in a sunny place on the floor for a long time. Kiara thinks that light from the sun can cause the rug’s color to fade over time. Can light from the sun cause the rug’s color to fade?
No. Light is not a physical thing, so it cannot change physical things like rugs.
No. Light can only change things by warming them up, so it cannot cause the rug’s color to fade.
Yes. The rug can take in energy from the light, causing the rug’s color to fade.
Yes. Light from the sun can pull energy out of the rug, causing the rug's color to fade.
Light ...
can only be reflected
only comes in one form
carries energy from one place to another, even through empty space
is a type of wave that carries energy from one place to another, even through empty space
In order to see an object, light must be
transmitted into your skin
reflected off the object and into your eyes
reflected off the object then off the ground then into your eyes
absorbed by your genetic material
Aniyah has a special type of paper that can permanently change color. She wonders whether light can cause the paper’s color to change. The table below shows what happens when different types of light hit the paper. Based on this information, which type of light can cause the paper to change color?
The infrared light can cause the paper to change color.
The X-ray light can cause the paper to change color.
The ultraviolet light can cause the paper to change color.
Any of these types of light can cause the paper to change color, because all light carries energy that can cause materials to change.
If an object appears green it must ...
reflect green light
transmit blue light
absorb green light
reflect yellow and orange light
In order for light to change an object, that object must _______ the light and its __________.
reflect, wavelength
transmit, amplitude
reflect, energy
absorb, energy
Ana wonders how light can affect a mystery material. The table below shows what happens when different types of light hit the mystery material. Based on this information, can light change the mystery material?
Yes, but the mystery material can change in only one way, such as by getting warm, because all the light that a material absorbs will affect that material in the same way.
Yes, and the mystery material can change in one or two different ways, such as by getting warm and/or changing color, because different types of light can cause different changes to a material when they are absorbed.
No. The mystery material can’t change because light is not a physical thing. Light cannot change physical things like the mystery material.
There is no way to know whether the mystery material will change or not.
When a material absorbs energy from light the energy causes the material...
to stay the same
to transmit the light
to reflect the light
to change
Different types of light can change a material ...
in different ways
in the same way
only if it transmits the light
only if it reflects the light
Wei saw a special type of plastic that would melt and become a liquid when it was placed in the sun, but it would not melt when placed under a desk lamp. Why does light from the sun melt the plastic when light from the desk lamp does not?
Because the plastic can take in energy from the light from the sun, but not from the light from the lamp.
Because light from the sun carries heat molecules, and light from the desk lamp does not.
Because light from the sun pulls energy out of the plastic, and light from the desk lamp does not.
Because the sun gives off a type of light that carries energy, and light from the desk lamp does not.
When a material allows light to pass through it,
the material reflects the light and changes
the material absorbs the light and doesn't change
the material transmits the light and doesn't change
material transmits the light and changes
The two terms to describe a the properties light wave are
Amplitude: How tall a wave is
Transmit: to pass through
Wavelength: How far apart the peaks are
Absorb: To take in
A light wave ...
Can be reflected
Can be absorbed
Can be transmitted
carries energy
The type of wave that can travel through either matter or empty space:
Sound Waves
Light Waves
