Understanding AC and DC
Interactive Video
•
Science
•
12th Grade
•
Practice Problem
•
Hard
Joshua Roberts-Garnsey
FREE Resource
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does DC stand for?
Dynamic Circuit
Direct Current
Dynamic Current
Direct Circuit
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does AC stand for?
Automatic Current
Automatic Circuit
Alternating Current
Alternating Circuit
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Can the terms AC and DC be used to describe both voltage and current?
Yes, but only in specific conditions
No, only for voltage
No, only for current
Yes, for both
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a characteristic of DC voltage?
It fluctuates over time.
It changes direction.
It is used in AC sockets.
It remains steady.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when the polarity of a battery is reversed?
The battery charges itself.
The voltage doubles.
The current flows in the opposite direction.
The current stops flowing.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does an AC voltage source affect a light bulb?
It dims and brightens as voltage changes.
It stays constantly bright.
It only gets brighter over time.
It does not affect the light bulb.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What unit is used to measure frequency?
Watts
Hertz
Volts
Amps
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