ICSE Class 6 Physics - Light - Test 1 (Basic)
1. Light is a form of:
A. Matter
B. Energy
C. Force only
2. We are able to see objects because of:
A. Light
B. Sound only
C. Gravity only
3. Objects that produce their own light are called:
A. Opaque objects
B. Transparent objects
C. Luminous objects
4. Which of the following is a luminous object?
A. Moon
B. Sun
C. Book
5. Objects that do not produce their own light are called:
A. Non-luminous objects
B. Luminous objects
C. Light sources only
6. The Moon is visible at night because it:
A. Produces its own light like the Sun
B. Is made of fire
C. Reflects sunlight
7. Which of the following is a natural source of light?
A. Electric bulb
B. Sun
C. Torch
8. Which of the following is an artificial source of light?
A. Electric bulb
B. Star
C. Firefly
9. Light usually travels in:
A. Circular paths only
B. Zigzag paths always
C. Straight lines
10. An object through which light passes clearly is called:
A. Opaque
B. Transparent
C. Luminous
11. Which of the following is a transparent material?
A. Clear glass
B. Wooden plank
C. Brick wall
12. An object that does not allow light to pass through it is called:
A. Transparent
B. Translucent
C. Opaque
13. Which of the following is an opaque object?
A. Air
B. Wooden door
C. Clear water
14. A material that allows only some light to pass through it is called:
A. Translucent
B. Opaque
C. Magnetic
15. Which of the following is usually translucent?
A. Steel plate
B. Clear glass
C. Butter paper
16. A shadow is formed when light is blocked by:
A. A transparent object only
B. An opaque object
C. A sound wave
17. Which group is needed to form a shadow?
A. Light source, opaque object, screen
B. Sound source, mirror, water
C. Magnet, paper, thermometer
18. The bouncing back of light from a surface is called:
A. Evaporation
B. Friction
C. Reflection
19. A mirror is used to see an image because it:
A. Absorbs all light
B. Reflects light
C. Produces sound
20. The image formed by a plane mirror is usually:
A. Erect
B. Always upside down
C. Always invisible