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WorksheetsPhysics #12 Practice
Total questions: 14
Worksheet time: 21mins
Name
Class
Date
1.
A student connects a battery to a 30 Ω resistor. She measures a current of 0.20 Amps. What is the voltage supplied by the battery?
a)
30.2 V
b)
0.0067 V
c)
150 V
d)
6.0 V
2.
Penny connects a 9 volt battery to a circuit that has a resistance of 30 Ω. Determine the flow of current.
a)
270 Amps
b)
0.3 Amps
c)
3.33 Amps
d)
2.7 Amps
3.
A closed conducting circle or loop through which current can flow
a)
CIRCUIT
b)
FUSE
c)
G.F.C.I.
d)
CRICKET
4.
The only protection device designed to protect people against electric shock from an electrical system.
a)
BREAKER
b)
FUSE
c)
G.F.C.I.
d)
GOGGLES
5.
rate at which work is done or energy is transformed
a)
VOLTAGE
b)
ELECTRIC POTENTIAL
c)
AMPERES
d)
POWER
6.
Penny connects a 9 volt battery to a circuit that has a resistance of 30 Ω. Determine the power dissipated by the circuit.
a)
270 Watts
b)
3.33 Watts
c)
0.3 Watts
d)
2.7 Watts
7.
A student connects a battery to a 30 Ω resistor. She measures a current of 0.20 Amps. What is the power used by the resistor?
a)
1.2 Watts
b)
6 Watts
c)
150 Watts
d)
0.0067 Watts
8.
This type of meter is connected in parallel because it has HIGH resistance.
a)
Thermometer
b)
Voltmeter
c)
Ammeter
d)
Poteniometer
9.
This type of meter is NEVER connected in parallel because it has LOW resistance.
a)
VOLTMETER
b)
BAROMETER
c)
MILLIMETER
d)
AMMETER
10.
Find the current in a 60-watt bulb plugged into a 120-volt outlet.
a)
7200 Amps
b)
0.5 Amps
c)
2.0 Amps
d)
15.0 Amps
11.
Find the current in a 26-watt CFL plugged connected to a 120-volt outlet.
a)
0.312 Amps
b)
4.6 Amps
c)
15 Amps
d)
0.22 Amps
12.
Find the power of a saw that draws 6.0 amps of current when plugged into a 110-volt outlet.
a)
660 Watts
b)
0.055 Watts
c)
18.3 Watts
d)
110 Watts
13.
Consider the circuit in the picture. If each lamp operates at 15 Ω, how much voltage would be needed to maintain a current of 0.30 Amps (or 300 milliamps) in the circuit.
a)
4.5 Volts
b)
50 Volts
c)
13.5 Volts
d)
less than 1 Volt
14.
A series circuit has 2 lamps. Lamp 1 (L1) has a resistance of 75 Ω and lamp 2 (L2) has a resistance of 10 Ω. When they are connected to a 9 volt battery what will happen?
a)
L1 will be brighter than L2
b)
L2 will be brighter than L1
c)
They will be exactly the same brightness.
d)
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