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WorksheetsUnit 2: Electricity & Magnetism Exam Review
Total questions: 24
Worksheet time: 12mins
Which of the following is transferred in order for static electricity to occur?
Protons
Electrons
Neutrons
All of the above
What kind of charge does an object have if it has gained electrons?
Positive
Negative
Neutral
What law does static electricity illustrate?
Law of Conservation of Energy
Law of Conservation of Charge
Law of Conservation of Matter
When the plastic coating around a cord is damaged, why does the cord become hazardous?
The damaged cord looks bad
The damaged coating exposes the wires and can electrocute someone
What unit is used when measuring the push that causes a charge to move?
Volts
Resistance
Amps
None of the above
What creates the charge in an electrical current?
Electrons
Protons
Neutrons
Which of the following describes the tendency for the conducting material to oppose the flow of electrons?
Resistance
Conductive ability
According to Ohm's law what would happen if the current was increased and the resistance was held constant?
Voltage would decrease
Voltage would increase
Voltage would stay the same
Which of the following is a circuit that has only one loop?
series
parallel
Which type of circuit has two or more branches for the current to flow through?
series
parallel
Why would two poles of different magnets repel one another?
They are the same poles
They are opposite poles
There is no magnetic pole
Where is the magnetic field the strongest?
The magnetic field is strongest further away from the magnet
The magnetic field is strongest closest to the poles of a magnet
What is it called when groups of atoms align their magnetic poles?
Magnetic field
Magnetic domains
What does the direction of the magnetic field depend on?
The direction of the magnetic field will depend on the direction of the current flow
The direction of the magnetic field will depend on the direction of the magnetic domains
Why is an electromagnet classified as a temporary magnet?
It is only a magnet when the current is flowing
It is only a magnet when the force is strong
When a current is running through a coil of wire with an iron core, what is created around the wire that is carrying the current?
An electric force
A magnetic field
A motor "runs" when _________ is produced by a spinning magnet.
electrical energy
mechanical energy
solar energy
None of the above
What is magnetic declination?
difference between magnetic north and geographic north
a compass that points north
How does a generator use electromagnetic induction?
To create a magnetic field
To create an electric current
What is the purpose of a step up transformer?
Decrease a voltage
Increase a voltage
Keep the voltage the same
None of these
Which of the following describes the measure of current?
The quality of the charge flow
The rate at which charge flows
If the magnetic field is weak, how is the magnetic force affected?
The magnetic force will be weak
The magnetic force will not be affected
What can be increased in order to increase the magnetic field?
The wire resistance
The electric current
Which type of transformer is found outside a residential house?
a step up transformer
a step down transformer
