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WorksheetsResistance
Total questions: 16
Worksheet time: 13mins
Name
Class
Date
1.
Voltage is measured in __.
a)
volts.
b)
watts.
c)
coulombs.
2.
As the resistance of a circuit increases, the current will
a)
increase
b)
decrease
c)
stay the same
3.
What is Resistance?
a)
the degree to which a circuit component opposes the passage of an electric current, causing energy dissipation
b)
How hard the energy is pushed
c)
The amount of charges that pass by a given point per second
d)
None of the above
4.
How does resistance affect current?
a)
less resistance - less current
b)
more resistance - less current
c)
more resistance - more current
d)
resistance does not affect current
5.
What size resistor would produce a 3 Amp current flow with a 12 Volt battery
a)
1 Ohm
b)
3 Ohms
c)
4 Ohms
d)
12 Ohms
6.
What happens to resistance when the length of the wire increases?
a)
Stays the same
b)
Increases
c)
Decreases
7.
What effect does a hotter temperature have on resistance?
a)
No effect
b)
Increases resistance
c)
Decreases resistance
d)
Stays the same
8.
What other factor of a wire could affect its resistance?
a)
Material its made of
b)
How shiny it is
c)
Colour
9.
If the current through a circuit is 2 A and the resistance of a light bulb in the circuit is 10 Ohms, what is the voltage difference across the light bulb?
a)
5 V
b)
12 V
c)
0.2 V
d)
20 V
10.
What would the circuit resistance be if a 7.5 Amp draw was present with the engine running and the charging system producing 15 Volts
a)
15 Ohms
b)
4 Ohms
c)
0.3333 Ohms
d)
2 Ohms
11.
Conventionally, current is described as flowing from the ................ terminal of a battery to the ................ terminal.
a)
Negative.....negative
b)
Negative....positive
c)
Positive......negative
d)
Positive....positive
12.
An ammeter is connected in ...........
a)
Parallel
b)
Series
13.
A voltmeter is connected in ...........
a)
Parallel
b)
Series
14.
Which resistor will prevent the most current flow?
a)
1 ohm
b)
100 ohms
c)
1000 ohms
d)
0.5 k ohms
15.
A thicker wire has a _____________ resistance.
a)
higher
b)
lower
16.
Free electrons always flow from the _________ pole of a dry cell to the ________ pole.
a)
negative, positive
b)
positive, negative
c)
positive, positive
d)
negative, negative
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