WorksheetsSCIENCE 8 - ACTIVITY (OHM'S LAW)
Total questions: 20
Worksheet time: 11mins
Name
Class
Date
1.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
2.
What is voltage measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
3.
What is resistance measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
4.
The mathematical relationship among Voltage, Current, and Resistance
a)
Faraday's Law
b)
Tesla's Law
c)
Edison's Law
d)
Ohm's Law
5.
Current times Resistance equals
(I X R)
(I X R)
a)
Power
b)
Voltage
c)
Amperage
d)
Ohm
6.
Voltage divided by Resistance
(V / R)
a)
Current
b)
Power
c)
Ohms
d)
Watts
7.
Voltage divided by Current
(V / I)
a)
Current
b)
Power
c)
Resistance
d)
Watts
8.
What voltage is needed to cause a 2A current flow through a 10Ω resistor?
a)
5V
b)
0.2V
c)
20V
d)
200V
9.
What resistance is needed to cause a 50A current flow because of a 500V battery?
a)
10Ώ
b)
5Ώ
c)
2500Ώ
d)
550Ώ
10.
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
11.
In an electrical circuit, if the current is 0.5 A and the resistance is 40 ohms, what is the voltage?
a)
80 V
b)
20 V
c)
0.0125 V
d)
40.5 V
12.
In an electrical circuit, if the resistance is 8 ohms and the voltage is 4 V, what is the current?
a)
0.5 A
b)
2 A
c)
32 A
d)
12 A
13.
V =6 V
I = ?
R =6 Ω
a)
1 A
b)
3 A
c)
5 A
d)
7 A
14.
What is the voltage of a circuit with 15 amperes of current and toaster with 8 ohms of resistance?
a)
30 volts
b)
60 volts
c)
90 volts
d)
120 volts
15.
V =6V
I = 2A
R =?
a)
1 Ω
b)
2 Ω
c)
3 Ω
d)
4 Ω
16.
R = 3 Ω, V=3v find I
(a)
17.
R = 3 Ω, I=3 amp, Find V
(a)
18.
R = 3 Ω, I= 9 amp, Find V
(a)
19.
V = 3 volts, I=9 amp, Find R=.Ω
(a)
20.
R = 3 Ω, I=15 amp, Find V
(a)
100 %
