WorksheetsResistance and Ohm's Law
Total questions: 11
Worksheet time: 6mins
Name
Class
Date
1.
What is the formula to calculate resistance?
a)
V = I x R
b)
V = I / R
c)
R = I / V
d)
I = V x R
2.
How does adding resistance affect a motor?
a)
Makes it spin more slowly
b)
Makes it spin faster
c)
Does not affect it
d)
Makes it stop working
3.
What is resistance?
a)
The energy transferred by each unit of charge
b)
The amount of current in a circuit
c)
The measure of how difficult it is for current to flow
d)
The potential difference in a circuit
4.
What happens to the current when the resistance in a circuit increases?
a)
It becomes negative
b)
It increases
c)
It decreases
d)
It stays the same
5.
What is the effect of increasing resistance on the brightness of a lamp?
a)
Makes it less bright
b)
Does not affect it
c)
Makes it flicker
d)
Makes it brighter
6.
What happens to resistance when more components are added in series?
a)
It decreases
b)
It becomes negative
c)
It stays the same
d)
It increases
7.
What is the unit for voltage?
a)
Volts
b)
Amps
c)
Ohms
d)
Watts
8.
What unit is resistance measured in?
a)
Watts
b)
Volts
c)
Amps
d)
Ohms
9.
The current passing through a lamp is 0.5 A. If the voltage across the lamp is 9 V, what is the resistance?
a)
4.5 Ω
b)
18 Ω
c)
0.05 Ω
d)
2 Ω
10.
What is the symbol for a resistor?
a)
b)
c)
d)
11.
How confident do you feel about resistance and Ohm's Law?
a)
Totally got it!
b)
Think I mainly understand
c)
Not so sure
d)
Absolutely no idea what is going on
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