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Physics: Light Energy
Test Description: Light energy
Instructions: Answer all questions to get your test result.
1) A flat pane of clear glass is an example of what type of matter?
A
Transluscent matter
B
Doesn't matter
C
Opaque matter
D
Transparent matter
2) Opaque objects will most likely do what to light?
A
Refract and transmit light.
B
Transmit and reflect light
C
Absorb and Refract light
D
Reflect and absorb light.
3) Which of the following will NOT refract (bend) light?
A
Prescription eyeglasses
B
Water
C
A block of wood.
D
Microscope
4) Which of the following is NOT a fact about light?
A
Most of Earth's light energy comes from the sun.
B
Light travels at 186,282 miles per second.
C
Light energy usually creates heat energy.
D
Light is usually absorbed by transparent objects.
5) How do we see the color red?
A
All of the colors except red are reflected; red is absorbed.
B
All of the colors are absorbed.
C
Red wavelengths are reflected;all of the other colors are absorbed.
D
Red wavelengths are refracted;all of the other colors are absorbed.
6) Identify the false statement.
A
Absorption is when light is pulled in by matter.
B
Refraction is when light is bent by matter.
C
Reflection is when light is bounced by matter.
D
A shadow occurs when light is transmitted through matter.
7) Why do we see moonlight at night?
A
The moon reflects the sun's light.
B
The moon refracts the sun's light.
C
Thirty million people shine flashlights at it each night.
D
The moon is a star that creates light.
8) To test which brand of battery lasts the longest, a student should...
A
Use different brands of batteries in identical flashlights and measure the time each lasts.
B
Use different brands of batteries and turn them on for different lengths of time.
C
Use the same batteries in each flashight and measure the time they last.
D
Test one flashlight's batteries and measure its mass.
9) To test how sunlight affects plant growth, what should the independent variable be?
A
The size of each plant.
B
The amount of sunlight each plant receives.
C
The amount of water given to each plant.
D
The type of soil used for each plant.
10) Which is a conductor of thermal (heat) energy?
A
A wooden spoon.
B
A rubber spatula.
C
A styrofoam cup.
D
An aluminum soda can.
*select an answer for all questions
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