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- 1. Multiple Choice
Objects that give out light are ______.
light sources
non-light sources
reflectors
- 2. Multiple Choice
What is formed when light is blocked by an object?
shadow
rainbow
star
cloud
- 3. Multiple Choice
How does light travel?
in straight lines
in curve lines
in zigzag lines
- 4. Fill in the Blank
It means there is very little light or no light at all
- 5. Multiple Choice
What affects the changes in the size of a shadow?
the colour of the object
the smell of the object
the amount of light
the distance of the object from a light source
- 6. Multiple Choice
A shadow forms on the other side of the object.
True
False
- 7. Multiple Choice
Objects can have more than one shadow if there is more than one light source
True
False
- 8. Fill in the Blank
The shadow is ___________
When the object is closer to a light source.
- 9. Multiple Choice
How to make the shadow of the rod bigger?
move the rod closer to the torch
move the torch away from the rod
move the rod closer to the screen
move the screen closer to the rod
- 10. Multiple Choice
Non-light sources
- 11. Multiple Choice
Light sources
- 12. Multiple Choice
What is B in the diagram?
object
light source
shadow
- 13. Multiple Choice
How to make the shadow of the boy smaller?
move the torch closer to the boy
move screen closer to the boy
- 14. Multiple Choice
The pumpkin was moved closer to the torch, what happened to the shadow?
it became bigger
it became smaller
nothing happened
- 15. Fill in the Blank
To make the shadow bigger, we move the dragon puppet ______________ to the torch.
- 16. Multiple Choice
Which path correctly shows the path of light that makes Zack see the laptop?
lamp ---> laptop ---> Zack's eyes
lamp ---> Zack's eyes ---> laptop
laptop ---> Zack's eyes ---> lamp
laptop ----> lamp ---> Zack's eyes
- 17. Multiple Choice
Jolly switches on her lamp whenever she reads. Which picture shows how light travels?
- 18. Fill in the Blank
The sun gives off ___________ and the Merlion reflected the light into David's eyes.
- 19. Multiple Choice
Which path(s) of light made Bobby see the cat?
A only
C only
A and C only
A and B only
- 20. Fill in the Blank
A shadow is formed when light is _____________ by an object.
- 21. Multiple Choice
Why shadow is formed?
light is reflected
light passes through
light is blocked
light travels in straight lines
- 22. Multiple Choice
What affects the size of the shadow?
The shape of the object that blocks the light.
The distance of the object from a light source.
The type of à light source being used.
The shape of the light source
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