Grade 3&4 KSVK

1. What is the main purpose of a table lamp?

• A. To play music

• B. To make sound

• C. To give light

• D. None of the above

2. What part of the table lamp produces light?

• A. Switch

• B. Bulb

• C. Wire

• D. Battery

3. What helps you to turn on and off the table lamp?

• A. Battery

• B. Wires

• C. Switch

• D. None of the above

4. Which source of energy does a table lamp mostly use?

• A. Mechanical

• B. Electricity

• C. Sunlight

• D. Wind

5. 5. What will happen if the battery is not connected properly?

• 5. A. The LED will glow brighter

• 5. B. The LED will glow less brighter

• 5. C. The table lamp will not work

• 5. D. None of the above

6. 6. What is the main function of the battery in the hand steadiness tester?

• 6. A. To turn on the LED

• 6. B. To produce sound

• 6. C. To provide electrical power to the circuit

• 6. D. To connect the LED and buzzer

7. 7. If the ring does not touch the metal wire, what is the circuit called??

• 7. A. Closed Circuit

• 7. B. Open Circuit

• 7. C. Short circuit

• 7. D. Fast circuit

8. 8. If the ring touch's the metal wire, what is the circuit called?

• A. Open Circuit

• B. Closed Circuit

• C. Short Circuit

• D. All the above

9. 9. If the ring touches the metal wire, what will happen?

• A) LED will turn on

• B) Buzzer produces sound

• C) Nothing will happen

• D) Both A and B

10. If a wire is cut between a battery and an LED so that electricity can’t flow, what is this

situation called?

• a) Closed circuit

• b) Open circuit

• c) Short circuit

• d) All the above