10. Which of the following is NOT a component of an electric circuit?
A. power supply B. resistance C. switch
D. insulator
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 buib/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?
.
B. Yes
D. Not at all
A No
C. Maybe
19. How can a motor spin fast?​