Light Energy
2 months ago
deanne johnson
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20 QuestionsShow answers
  • Question 1
    45 seconds
    Q.

    When you shine sunlight through a magnifying glass onto a piece of paper, you can sometimes set the paper on fire. Why does this happen?

    answer choices

    The glass of the magnifier heats up.

    The energy of the Sun is focused in one small place.

    The energy of the Sun is spread out over the whole piece of paper.

    Sunlight sets everything on fire if it sits still long enough.

  • Question 2
    30 seconds
    Q.

    2. WHICH OF THE FOLLOWING IS A SOURCE OF LIGHT?

    answer choices

    the moon

    our eyes

    fire

    a mirror

  • Question 3
    30 seconds
    Q.

    3. Mrs. Smith’s class will be outside for several hours on Friday. The temperature is to be in the 90’s. What color clothing should students wear to stay cooler?

    answer choices

    black

    white

    red

    blue

  • Question 4
    30 seconds
    Q.

    Why is light able to travel through space when sound cannot?

    answer choices

    Light is able to be reflected by objects.

    Light is able to travel through gas.

    Light is able to travel through a vacuum.

    Light is able to travel through translucent objects.

  • Question 5
    30 seconds
    Q.

    When all of the colors of light are absorbed, we see the color _______.

    answer choices

    white

    green

    black

    red

  • Question 6
    30 seconds
    Q.

    Why do you feel warm when you stand in the sunlight?

    answer choices

    You are warmed by the sunlight that reflects off your clothes.

    The sunlight refracts through your body, warming it up.

    The sunlight is transmitted through your body, warming it up.

    Your clothes absorb some of the sunlight and convert it to heat.

  • Question 7
    30 seconds
    Q.

    7. When light bounces off a mirror, it is __________.

    answer choices

    Absorbed

    Reflected

    Corrected

    Refracted

  • Question 8
    30 seconds
    Q.

    8. Which statement best explains why you can see yourself when you look at a mirror?

    answer choices

    Light is refracted as it passes through the mirror.

    Light is refracted, bouncing off the mirror.

    Light is reflected, bouncing off the mirror.

    Light is reflected as it passes through the mirror.

  • Question 9
    30 seconds
    Q.

    Which is a source of light?

    answer choices

    Chair

    Mirror

    Flashlight

    ball

  • Question 10
    30 seconds
    Q.

    The moon generates light.

    answer choices

    True

    False

  • Question 11
    30 seconds
    Q.

    How does light affect the pupil?

    answer choices

    The pupil gets larger as light decreases.

    The pupil gets larger as light increases.

    The pupil’s color depends on the amount of light.

    The pupil isn’t affected by light.

  • Question 12
    30 seconds
    Q.

    Where does light come from?

    answer choices

    The fish

    The clouds

    A coral reef

    The sun

  • Question 13
    30 seconds
    Q.

    What is the source of the light from the moon?

    answer choices

    The light is sunlight reflecting off the moon.

    The light comes from glowing rocks.

    The light is from Earth reflecting off the moon.

    The light is from the ice on the moon.

  • Question 14
    30 seconds
    Q.

    What provides Earth with heat and light?

    answer choices

    The Sun

    The planets

    The Moon

    The atmosphere

  • Question 15
    30 seconds
    Q.

    Plants depend on the sun’s light energy to ____________.

    answer choices

    Make carbon dioxide

    Perform photosynthesis (make their own food)

    Produce a spectrum

    Make water

  • Question 16
    30 seconds
    Q.

    What does the pupil do in bright light?

    answer choices

    The pupil bends the light.

    The pupil becomes smaller.

    The pupil reflects the light.

    The pupil changes color.

  • Question 17
    30 seconds
    Q.

    In which form is energy from the light of the Sun?

    answer choices

    Mechanical

    Sound

    Chemical

    Radiant

  • Question 18
    30 seconds
    Q.

    How many colors is white light from the sun made of?

    answer choices

    Three

    Twelve

    Seven

    Five

  • Question 19
    30 seconds
    Q.

    A lemon appears yellow when light is shone on it because the lemon _________ yellow light.

    answer choices

    Bends

    Refracts

    Absorbs

    reflects

  • Question 20
    30 seconds
    Q.

    How is light energy transmitted? Light energy is transmitted as _________.

    answer choices

    Cells

    Waves

    Circles

    wires

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