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