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Electricity
Test Description: 6.1-6.10
Instructions: Answer all questions to get your test result.
1) If batteries are added in a series circuit what happens to voltage
A
batteries last longer
B
it increase
C
it decreases
D
stays the same
2) If batteries are added in a parallel circuit what happens
A
voltage stays the same
B
voltage increases
C
batteries last longer
D
voltage decreases
3) LIght bulbs are sources of
A
switches
B
voltage
C
current
D
resistance
4) If you add a lightbulb to a circuit what happens to resistance
A
increases
B
decreases
5) Both circuits are series. Circuit A has one bulb and Circuit B has two bulbs. What statement would be true
A
The resistance in both cirucits is the same
B
The bulbs would be the same
C
The bulb in A would be brighter
D
Circuit B would still work if a bulb burned out.
6) If there are several bulbs in a parallel circuit what statement would be true.
A
all bulbs would have the same brightness
B
the first bulb would be the brightest and the rest would be dimmer
C
if one burns out they others will stop working
7) What would decrease the resistance in a wire
A
making shorter
B
making thinner
C
thickness
D
lower temperature
8) If the mass of an object double what happens to kinetic energy
A
it decreases by half
B
nothing
C
it doubles
9) The unit of resistance
A
ohm
B
volt
C
joule
D
watt
10) Usually the direction of current is the direction in which ___________ charges flow
A
negative
B
charge has nothing to do with it
C
positive
D
varies
*select an answer for all questions
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