P6 Science · Chapter 8brightbit.net/worksheets

Electrical Systems

Name: ______________________Class: ________Date: ____________Score: ____ / 5

1.
In a series circuit with two bulbs, if one bulb is removed, what happens to the other?
(a) It glows brighter(b) It continues to glow at the same brightness(c) It goes out(d) It flashes
2.
In a parallel circuit with two bulbs, if one bulb is removed, what happens to the other?
(a) It goes out(b) It continues to glow (the other branch is still complete)(c) It glows dimmer(d) The battery is damaged
3.
Adding more batteries in series to a circuit will —
(a) Decrease the current in the circuit(b) Increase the voltage and make bulbs glow brighter(c) Have no effect on brightness(d) Cause all bulbs to go out
4.
A student wants to add a switch that controls only ONE of two bulbs in a circuit. The bulbs should be connected —
(a) In series with the switch between them(b) In parallel, with the switch on one branch only(c) In series with no switch needed(d) Both connected to separate batteries
5.
Which combination would make a bulb glow BRIGHTEST?
(a) One battery, bulbs in series(b) Two batteries in series, one bulb(c) Two batteries in parallel, one bulb(d) One battery, bulbs in parallel

Answer key — P6 Science: Electrical Systems

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