WorksheetsICP - Unit 6 Test - Part 1
Total questions: 22
Worksheet time: 11mins
Name
Class
Date
1.
The voltage in a circuit is increased. Which of the following would occur?
a)
the current would stay the same
b)
the current would decrease
c)
the current would increase
d)
it is impossible to say what would happen to current
2.
A material through which charges can flow freely is called a
a)
conductor
b)
insulator
c)
series
d)
parallel
3.
The resistance in a circuit is increased. Which of the following would occur?
a)
the current would decrease
b)
the current would increase
c)
the current would stay the same
d)
it is impossible to say what would happen to current
4.
Resistance is measured in a unit called the ____.
a)
ampere
b)
coulomb
c)
ohm
d)
volt
5.
A path that allows only one route for an electric current to is called a ____.
a)
parallel circuit
b)
parallel current
c)
series circuit
d)
series current
6.
A path that has two or more branches for electrons to follow is a(n) ____.
a)
circuit diagram
b)
electron circuit
c)
parallel circuit
d)
series circuit
7.
The rate at which an electrical device converts energy from one form to another is called _____.
a)
electrical energy
b)
electrical power
c)
electrical resistance
d)
voltage regulation
8.
Electric companies usually sell electrical energy in units of _____.
a)
watts
b)
amperes
c)
volts
d)
kilowatt-hours
9.
In the circuit shown below, which bulb, when burned out, will cause all the other bulbs to stop glowing?
a)
A
b)
B
c)
C
10.
Current that does NOT reverse direction is called _____.
a)
alternating current
b)
circuit current
c)
direct current
d)
magnetic current
11.
Series or Parallel: If you turn off one light, all other also turn off.
a)
Series
b)
Parallel
12.
Series or Parallel: there are multiple paths for electricity to flow.
a)
Series
b)
Parallel
13.
Series or Parallel: the diagram below
a)
Series
b)
Parallel
14.
Series or Parallel: if you turn off one light, the others stay lit
a)
Series
b)
Parallel
15.
Series or Parallel: the diagram below
a)
Series
b)
Parallel
16.
Series or Parallel: there's only one path for electricity to flow
a)
Series
b)
Parallel
17.
Which is the correct picture of the magnetic field around a magnet?
a)
A
b)
B
c)
C
d)
D
e)
E
18.
A bar magnet is suspended with a piece of string, and another rod brought close to it as shown. The rod repels the magnet. Which one of the following statements is correct?
a)
The rod has a north pole at X
b)
The rod is non-magnetic
c)
The rod has a south pole at X
19.
Which one of the following materials will be attracted by a magnet?
a)
Plastic
b)
Steel
c)
Cardboard
d)
Copper
20.
What must happen for an electromagnet to have a magnetic field?
a)
It must be lined up with the Earth's magnetic field.
b)
It has to be touching another magnet.
c)
It must be connected to an electrical source.
d)
It must be heated.
21.
A device that transforms mechanical energy to electrical energy is a
a)
Electromagnet
b)
Generator
c)
Electric Motor
d)
Bar Magnet
22.
How can you increase the strength of an electromagnet? (Select all that apply)
a)
Increase the number of loops
b)
Reduce the number of loops
c)
Decrease the strength of electric current
d)
Increase the current flowing through it
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