What do you call an objects that do not allow light to pass through them?
A. Opaque B. Translucent C. Transparent D. Reflection
_____2. Which of following is the primary source of light?
A. Sun B. Candle C. Matches D. Florescent lamp
_____3. You are walking one afternoon to go to your uncle’s house. You are aware that exposure to sunlight
can lead to certain diseases. What material can you use in order to block the sun that damages your
skin?
A. umbrella B. books C. bag D. rain coat
_____4. The following are examples of materials that transmit light. Which one is not useful?
A. Picture frames C. Windows of houses
B. Glass doors covered with designed plastic D. Display cabinet door
_____5. Why do most people in tropical countries use white paint for their homes?
A. to shade their house C. to absorb heat
B. to make feel cool and comfortable D. to decrease the temperature
_____6. What materials allow all lights to pass through them?
Reflection B. Translucent C. Transparent D. Opaque
_____7. These materials allow some light to pass through them. The following examples are stained glasses
and frosted window. What do you call this?
A. Opaque B. Transparent C. Translucent D. Refraction
_____8. What do you call the bouncing back of light?
A. Transmission B. Reflection C. Dispersion D. refraction
_____9. Why do people enjoy the shade of the tree during summer?
A. It absorbs light B. It blocks light C. It reflects light D. It transmits light
_____10. What do you call the bending of light as it passes through different materials?
A. Diffraction B. Reflection C. Dispersion D. Refraction
_____11. A piece of coal appears black when viewed in sunlight because it __________ all the light that falls
on it.
A. Absorbs B. Reflects C. Disperses D. Transmits
_____12. A red rose appears red because of its ability to ____________________.
A. Absorb the red color and reflect all others C. Reflect the red color and absorb all others
B. Transmit all colors except red D. Transmit the red color and reflect all other
______13. What are the parts of the circuit?
A. Wire, switch, bulb, battery B. Sun, electric wire, iron, battery
B. Switch, wire, candle, battery C. Wire, electricity, plastic, battery
______14. In which of the following situation do you think current will flow?
A. Closed circuit B. Open circuit C. Broken circuit D. Short circuit
______15. It is the source of electrical energy.
A. Battery B. Switch C. Wire D. Bulb
______16. It is a circuit where electricity cannot flow.
A. Open circuit B. closed circuit C. Battery D. Switch
______17. It connects the light bulb to the battery.
Wire B. Source C. Open circuit D. Bulb
______18. It is used to open and close the circuit.
A. Switch B. Source C. Circuit D. Bulb
______19. It is a complete path of electricity.
A. Closed circuit B. Switch C. Circuit D. Open circuit
______20. What happened to the bulb after you detach the switch from the wire?
A. The bulb is light B. The bulb is sparkle C. The bulb is not light D. The bulb is on
Answer:
1.D
2.A
3.A
4.A
5.D
6.B
7.A
8.B
9.B
10.D
11.B
12.C
13.A
14.C
15.A
16.B
17.A
18.A
19.C
20.D
Explanation:
