Light and Shadows Quiz - ICSE Class 5 Science

Free practice quiz: Light and Shadows (ICSE Class 5 Science). 38 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This ICSE Class 5 Science practice quiz has 38 multiple-choice questions on Light and Shadows, and 38 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. Which of the following materials will cast the darkest shadow?

   1. A piece of transparent glass
   2. A sheet of tracing paper
   3. A thin piece of black cardboard
   4. A thin sheet of mica
   Show answer

   Answer: C. A thin piece of black cardboard

   Opaque objects block light completely, casting dark shadows. Transparent objects allow most light to pass through, casting faint shadows or no shadows at all. Translucent objects allow some light to pass through, casting blurry or faint shadows. Black cardboard is opaque and will block the most light.

2. Which of the following is NOT a requirement for shadow formation?

   1. A light source
   2. An opaque object
   3. A screen or surface to cast the shadow upon
   4. A vacuum
   Show answer

   Answer: D. A vacuum

   While light travels through a vacuum, a vacuum itself is not a requirement for shadow formation. The essential components are a light source, an opaque object to block the light, and a surface to receive the shadow.

3. Which of the following is an example of an opaque object?

   1. A clear glass window
   2. A magnifying glass
   3. A book
   4. A thin sheet of wax paper
   Show answer

   Answer: C. A book

   Opaque objects do not allow light to pass through them. A clear glass window is transparent, a magnifying glass is transparent, and wax paper is translucent.

4. A translucent object, when placed in the path of light, will cast a shadow that is:

   1. Completely dark and sharp
   2. Faint and blurry
   3. Non-existent
   4. Twice the size of the object
   Show answer

   Answer: B. Faint and blurry

   Translucent objects allow some light to pass through, but they scatter it. This scattering results in a shadow that is not completely dark and has blurred edges.

5. Which of the following objects, when placed in the path of light, would allow you to see the light source through it, but the light would be scattered?

   1. A polished mirror
   2. A clear piece of glass
   3. A piece of tracing paper
   4. A metal sheet
   Show answer

   Answer: C. A piece of tracing paper

   Tracing paper is translucent. It allows light to pass through, but it scatters the light rays, making objects behind it appear blurry. Clear glass is transparent, a mirror is reflective, and a metal sheet is opaque.

More questions in this quiz

Answers and explanations are in the full quiz.

1. When an opaque object is placed in the path of light, it blocks some or all of the light, creating an area where light cannot reach. What is this phenomenon called?
2. Which of the following objects will produce a sharp, well-defined shadow?
3. Which of the following is a characteristic of light that allows shadows to form?
4. What part of a shadow is the darkest region, where no light reaches at all?
5. Which of these is an example of a translucent material?
6. What is the term for the lighter, outer region of a shadow where the light source is only partially blocked by an opaque object?
7. If you stand in direct sunlight, your shadow is cast behind you. If you turn to face the sun, your shadow will:
8. An object that allows all light to pass through it is called:
9. If the light source is an extended source (like a fluorescent tube), it will produce:
10. Imagine a sundial. What scientific principle does it rely on for telling time?
11. When does a solar eclipse occur?
12. What is the shape of the umbra cast by a spherical object when illuminated by a distant point source of light?
13. If you hold your hand up to a light bulb, and your hand is opaque, what will you see projected on the wall behind it?
14. The shadow cast by an object is always:
15. What is the relative position of the Sun, Moon, and Earth during a lunar eclipse?
16. Which material would you use to create a sharp shadow?
17. If the light source is very close to an opaque object, the shadow cast on a screen far away will be:
18. What happens to the shadow of an object if the object is moved closer to the light source?
19. When looking at the Moon during a full moon, what is the relative position of the Sun, Moon, and Earth?
20. Which term describes an object that emits its own light?
21. If the light source is directly to your left, your shadow will be cast:
22. What happens to the length of your shadow as the sun rises higher in the sky?
23. Which of the following is an example of a shadow?
24. If a light source is directly in front of an object, what is the general direction of the shadow cast?
25. The process by which light bounces off a surface is called:
26. What is the shape of the shadow of a rectangular book when illuminated by a distant, overhead light source?
27. If the object casting a shadow is perfectly spherical and the light source is a distant point source, the umbra will be shaped like:
28. What is the primary characteristic of light that makes shadows possible?
29. If you hold a flashlight close to a wall, and then move an opaque object between the flashlight and the wall, the object will cast a shadow. If you move the object closer to the flashlight, the shadow on the wall will:
30. Which celestial event occurs when the Moon comes between the Sun and the Earth, casting a shadow on the Earth?
31. What is the term for an object that allows light to pass through but scatters it, producing blurry shadows?
32. If the sun is setting in the west, your shadow will be cast:
33. Which of the following factors influences the size and shape of a shadow?

More quizzes

• Plant Reproduction▶ Play
• Pollination▶ Play
• Sound and Noise▶ Play
• States of Matter▶ Play
• Work and Energy▶ Play
• Cleanliness, Health and Hygiene▶ Play

Browse all Science quizzes

More to play