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WorksheetsElectricity and Magnetism - A
Total questions: 14
Worksheet time: 7mins
If two atoms, each with a different charge (+ and -), were brought near each other, they would....
attract each other
repel each other
create static discharge
have on effect on each other
Walking across a carpet is a perfect example of charge being transferred by...
contact
induction
static electricity
friction
If a neutral metal comb is held near an object with a negative charge, the comb will become charged by....
static discharge
contact
friction
induction
What type of current is produced by a battery?
parallel current
alternating current
direct current
potential current
In which of the following materials do charges to flow more easily?
glass
wool
metal wires
rubber mats
The current in a hair dryer measures 15.0 Amps. The resistance of the appliance is 8.0 ohms. What is the voltage?
120 V
0.5 V
7.0 V
1800 V
Which of the following represents Ohm’s law?
I = V / R
V = I x R
R = V x I
V = I / R
How many paths through which charge can flow would be shown in a circuit diagram of a series circuit?
two or more
one
none, the circuit is open
more information is needed
Which of the following statements describes the interaction between magnetic poles?
Like poles attract each other.
Like poles repel each other, and opposite poles attract each other.
Opposite poles repel each other.
Like poles attract each other, and opposite poles repel each other.
Which of the following statements is true about Earth’s magnetic poles?
They are located at Earth’s geographic poles.
They are the areas where Earth’s magnetic field is weakest.
They are the areas where Earth’s magnetic field is strongest.
Earth has four magnetic poles.
If you break a bar magnet in half, each half...
contains one magnetic pole.
becomes a bar magnet with two poles.
becomes unmagnetized.
is only temporarily magnetized.
What creates a magnetic field?
charged particles that do not move
moving electric charges
gravity
an isolated magnetic pole
How are fossil fuels used to generate electrical energy?
Heat from burning fuel creates steam that spins a turbine.
Heat from burning fuel spins magnets inside an electric motor.
Heat from burning fuel causes an electric motor to produce a current.
Heat from burning fuel creates steam that turns a transformer.
A temporary magnet that only works when electricity is passed through wires surrounding an iron core is called:
electromagnet
galvanometer
induction
super conductor magnet
