THIRD QUARTER
I. Read each sentence carefully. Choose the letter of the best answer.
1. Which of the following refers to the study of refraction, reflection, absorption, and
transmission of light?
A. physics
B. optics
C. robotics D. linguistics
2. Refraction refers to the bending of light as it passes through different materials.
A. True
B. False
C. Somehow D. Maybe
3. Which of the following refers to the bouncing back of light when it hits an object?
A. Refraction
B. Absorption C. Reflection D. Transmission
4. Absorption refers to a material's taking out of light and reflecting it back.
A. True
B. False
C. Somehow D. Maybe
5. Which of the following statement defines transmission?
A. It refers to taking in of light through some materials.
B. It refers to bouncing back of light through some materials.
C. It refers to the passing of light through some materials.
D. It refers to bending of light through some materials.
6. It is the source of electrical energy.
A. battery
B. switch
C. wire
D. bulb
7. It is a circuit where electricity cannot flow.
A. open circuit
B. closed circuit C. battery
D. switch
8. It connects the light bulb to the battery.
A. wire
B. source
C. open circuit
D. bulb
9. It is used to open and close the circuit.
A. switch
B. source
C. circuit
D. bulb
-10. It is a complete path of electricity.
A. closed circuit
B. switch
C. circuit
D. open ci​