Directions: Encircle the letter of the correct answer.
1. It is the primary source of light.
A. Moon
B. Sun
C. stars
D. Visible Light
2. The study of light and how it interacts with different objects is called _______________.
A. Acoustics
B. Reflection
C. Optics
D. Refraction
3. These are materials that allow all light to pass through them.
A. Opaque
B. Transparent
C. Translucent
D. none of the above
4. Which of the following materials can reflect light?
A. clay
B. rubber
C. mirror
D. wood
5. The type of materials that do not allow light to pass through them are called _______________.
A. Opaque
B. Transparent
C. Translucent
D. none of the above
6. Which of the following is an example of a translucent material?
A. clear plastic
B. mirror
C. hollow block
D. stained glass
7. What is formed when an opaque object is placed under the slanting rays of the sun?
A. light
B. smoke
C. shadow
D. sound
8. Light travels faster in air than in water. This is ____________.
A. True
B. Maybe
C. False
D. Neither true nor false
9. Why is a clear glass window categorized as a transparent material?
A. Because it allows all the light to pass through it.
C. Because it allows some of the light to pass through it.
B. Because it does not allow the light to pass through it.
D. None of the above
10. A pencil appears bent when dipped in a glass of water because of _______________.
A. Absorption
B. Refraction
C. Reflection
D. Transmission
encircle the letter of the correct answer.
— ANSWER :
- b. Sun.
- c. Optics.
- b. Transparent.
- c. Mirror.
- c. Translucent.
- c. Hollow Blocks.
- c. Shadow.
- a. True.
- a. Because it allows all the light to pass through it.
- b. Refraction.
