Assignment for Light, Shadows and Reflection Questions and Answers Paper
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Question 1
State True or False
(a) Light travels in straight line
(b) A shadow can be coloured
(c) The image formed in pinhole camera is both erect and inverted
(d) Transparent object does not cast shadows
(e) A periscope is an instrument used for observing objects from a hidden position
(f) Moon is a luminous object
Answer:
a) True
b) False
c) True
d) True
e) True
f) False
Question 2
Fill in the Blank
1. The phenomenon by which we see our face in mirror is called-----
2. Sun is an-----------object
3. A------------eclipse occurs when earth comes between sun and moon in a straight line.
4. Wooden piece is an----------object
5. ----------And-----------are two types of shadows
6. The objects which partially allow light to pass through them are called-------------------
7. Speed of light is----------------
Answer:
1) Reflection
2) Luminous
3) Lunar
4) Opaque
5) Umbra, penumbra
6) Translucent
7) m/s
Question 3:
Match the column
Column A | Column B |
Translucent | Wood |
Opaque | Torch bulb |
Transparent | Butter paper |
Luminous | Gloss |
Water | |
Sun |
Answer:
Column A | Column B |
Translucent | Butter paper Wood |
Opaque | Wood |
Transparent | Glass |
Water | |
Luminous | Sun |
Torch bulb |
Question 4
Crossword
Solve the below crossword

Solve the below Crossword
Across
2 These objects does not allow light to pass through them
3 It travels in straight line
6 It is a device to see hidden corners
Down
1 This device uses reflection to create beautiful picture
4 These objects allows light to pass fully
5 These objects allow the light to pass partially
7 It is formed when opaque objects come in the path of light
Answer:
a) Translucent
b) Light
c) Shadows
d) Transparent
e) Opaque
f) Periscope
g) Kaleidoscope