11. What needs to be done to the circuit so that the bulb lights up?
A. Close the switch B. Add another wire.
C. Add another bulb/lamp. D. Add a battery and close the switch





12. Which of these circuits produce light?
A. closed circuit B. open circuit C. Binary circuit D. short circuit

13. More batteries make the bulb glow__________.
A. dim B. not so bright C. brightly D. none of the above

14. Too much batteries can make the bulb___.
A. bright B. broken C. dim D. busted

15. Adding more bulbs can make the glow___.
A. glaring B. brighter C. dimmer D. none of the above

16. It’s hard for the current to flow when the wire is ___.
A. shorter B. scraped C. broken D. longer
17. Removing the switch and connecting the two wires is making the circuit___.
A. Closed B. open C. broken D. detached

18. Can a bulb added in a circuit with twisted wires light up?
A. No B. Yes C. Maybe D. Not at all

19. How can a motor spin fast?
A. increase the voltage of the battery or add more battery
B. decrease the voltage of the battery or take out more battery
C. add another load
D. none of the above

20. How can a bulb be made dimmer?
A. Use a battery with lesser voltage B. Add more bulb
C. Add more battery D. Both A and B

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