WorksheetsUnit 10 Test Circuits
Total questions: 12
Worksheet time: 6mins
Name
Class
Date
1.
Solve:
Voltage = ?
Current = 5 Amps
R = 9 Ohms
Voltage = ?
Current = 5 Amps
R = 9 Ohms
a)
V = 40 Volts
b)
V = 1.8 Volts
2.
True or False?
Total resistance is equal to the sum of the individual resistances (light bulbs) on the circuit path.
Total resistance is equal to the sum of the individual resistances (light bulbs) on the circuit path.
a)
True
b)
False
3.
What type of circuit only has one path for electrons to flow?
a)
Series
b)
Parallel
4.
What is like pressure and is a type of a potential energy?
a)
Current
b)
Resistance
c)
Voltage
d)
Circuits
5.
____________ have chemicals inside and produce electricity by converting the chemical energy into electrical energy.
a)
Bulbs
b)
Batteries
6.
What controls the amount of current in a circuit?
a)
Resistance
b)
Pressure
7.
In order to operate a hairdryer, the current required is 2.5 A. What is its resistance if the voltage supplied is 120 V?
Given:
V = 120 V
I = 2.5 A
R = ?
Given:
V = 120 V
I = 2.5 A
R = ?
a)
48
b)
300
8.
a)
There are two leads and one bulb.
b)
There are three leads and one bulb.
9.
What measures the flow of electrons from one place to the next?
a)
Parallel Circuit
b)
Current
10.
a)
1 bulb, four leads, 1 battery and 2 switches
b)
1 bulb, three leads, 1 battery, and one open switch
11.
What happens when a switch is open?
a)
Electrons can flow through the wires making the light bulb turn on.
b)
Electrons cannot flow through the circuit because of the break where the switch is open.
12.
Define:
A device that changes electrical energy to mechanical energy that can do work.
A device that changes electrical energy to mechanical energy that can do work.
a)
Electromagnet
b)
Diode
c)
Capacitor
d)
Motor
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