A Beginners Quiz About Light
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Light is electromagnetic radiation within the spectrum of the electromagnetic rays that can be perceived by the human eye. The main source of light on Earth is the Sun. Sunlight provides the energy that plants use to create sugars mostly in the form of starch, which releases energy into the living things that digest them. This is a beginner's quiz about light. Answer these simple questions and learn interesting trivia.
- 1.
Lucy and her teacher discuss shadows. Lucy thinks of four possible answers to the teacher’s question. Choose the correct answer.
- A.
Wooden chair
- B.
Mosquito net
- C.
Glass window
- D.
Brick wall
Correct Answer
B. Mosquito netExplanation
Lucy's teacher must have asked a question related to shadows and their characteristics. Out of the four options given, the correct answer is "Mosquito net" because it is a translucent material that allows some light to pass through, creating a diffused shadow. The other options, such as wooden chair, glass window, and brick wall, would create more defined and solid shadows due to their opaque nature.Rate this question:
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- 2.
Why does Emily have a shadow?
- A.
The light cannot travel through Emily’s body
- B.
Emily is transparent
- C.
Emily’s body allows pass the light.
- D.
The light is super strong
Correct Answer
A. The light cannot travel through Emily’s bodyExplanation
Emily has a shadow because the light cannot travel through her body. When light encounters an object, it can either be absorbed, transmitted, or reflected. In this case, Emily's body is not transparent or allowing the light to pass through, so it is being absorbed or reflected, creating a shadow behind her.Rate this question:
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- 3.
Sam does not know why Emily’s shadow moves. He asks his friends. Which friend has the correct answer?
- A.
Carlos
- B.
Nadia
- C.
Sam
- D.
Maya
Correct Answer
D. MayaExplanation
Maya has the correct answer because she knows that Emily's shadow moves because of the rotation of the Earth. The movement of the Earth causes the position of the sun to change relative to Emily, resulting in the movement of her shadow. Maya's knowledge of this scientific phenomenon shows that she understands the reason behind the movement of Emily's shadow.Rate this question:
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- 4.
Why does the Sun look as if it is moving across the sky?
- A.
The sun is rotating
- B.
The Earth is spinning/rotating (on its axis).
- C.
The Earth is revolving around the sun
- D.
The earth is moving
Correct Answer
B. The Earth is spinning/rotating (on its axis).Explanation
The Earth's rotation on its axis causes the Sun to appear as if it is moving across the sky. As the Earth spins, different parts of its surface are exposed to the Sun's light, creating the illusion of the Sun moving from east to west. This rotation gives rise to day and night, as well as the apparent movement of the Sun throughout the day.Rate this question:
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- 5.
Class 5 discuss light sources with their teacher. Which student knows the correct answer to the teacher’s question? Write the correct letter
- A.
A
- B.
B
- C.
C
- D.
D
Correct Answer
C. CExplanation
Based on the given information, it can be inferred that student C knows the correct answer to the teacher's question about light sources.Rate this question:
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- 6.
Which of the following is not a light source? Choose the correct answer
- A.
Candle
- B.
Moon
- C.
Stars
- D.
Sun
Correct Answer
B. MoonExplanation
The moon is not a light source because it does not emit light of its own. Instead, it reflects the light of the sun, making it appear bright in the night sky. The other options, candle, stars, and sun, are all sources of light.Rate this question:
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- 7.
The light intensity cannot be measured with sensors.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
This statement is false because light intensity can indeed be measured with sensors. There are various types of sensors, such as photodiodes or light-dependent resistors, that can detect and measure the intensity of light. These sensors convert the light energy into electrical signals, allowing for quantitative measurement of light intensity.Rate this question:
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- 8.
We see light when it leaves our eyes.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
We do not see light when it leaves our eyes. In fact, we see light when it enters our eyes and is detected by the retina. The light enters the eye through the cornea, passes through the pupil, and then gets focused by the lens onto the retina. The retina contains cells called photoreceptors that convert the light into electrical signals, which are then sent to the brain for processing and interpretation, resulting in the sensation of vision.Rate this question:
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- 9.
Light travels in straight lines.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Light travels in straight lines because it is a form of electromagnetic radiation that moves in a wave-like pattern. These waves propagate through space and other mediums by oscillating perpendicular to the direction of their motion. This oscillation causes the light to travel in a straight line unless it encounters an obstacle or is refracted or reflected by a surface. This property of light is fundamental and has been observed and studied extensively in the field of optics.Rate this question:
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Current Version
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Mar 22, 2023Quiz Edited by
ProProfs Editorial Team -
Apr 28, 2021Quiz Created by
Catherine Halcomb
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