Physics: Light Energy Question Preview (ID: 520)

Light Energy. TEACHERS: click here for quick copy question ID numbers.

A flat pane of clear glass is an example of what type of matter?
a) Transparent matter
b) Transluscent matter
c) Opaque matter
d) Doesn't matter

Opaque objects will most likely do what to light?
a) Reflect and absorb light.
b) Refract and transmit light.
c) Absorb and Refract light
d) Transmit and reflect light

Which of the following will NOT refract (bend) light?
a) Prescription eyeglasses
b) Water
c) Microscope
d) A block of wood.

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.

How do we see the color red?
a) Red wavelengths are reflected;all of the other colors are absorbed.
b) Red wavelengths are refracted;all of the other colors are absorbed.
c) All of the colors except red are reflected; red is absorbed.
d) All of the colors are absorbed.

Identify the false statement.
a) Reflection is when light is bounced by matter.
b) Refraction is when light is bent by matter.
c) Absorption is when light is pulled in by matter.
d) A shadow occurs when light is transmitted through matter.

Why do we see moonlight at night?
a) The moon is a star that creates light.
b) The moon refracts the sun's light.
c) The moon reflects the sun's light.
d) Thirty million people shine flashlights at it each night.

To test which brand of battery lasts the longest, a student should...
a) Use the same batteries in each flashight and measure the time they last.
b) Use different brands of batteries and turn them on for different lengths of time.
c) Test one flashlight's batteries and measure its mass.
d) Use different brands of batteries in identical flashlights and measure the time each lasts.

To test how sunlight affects plant growth, what should the independent variable be?
a) The amount of water given to each plant.
b) The type of soil used for each plant.
c) The size of each plant.
d) The amount of sunlight each plant receives.

Which is a conductor of thermal (heat) energy?
a) An aluminum soda can.
b) A styrofoam cup.
c) A rubber spatula.
d) A wooden spoon.

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