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WorksheetsElectricity and Magnetism
Total questions: 35
Worksheet time: 29mins
Atoms that have a positive charge will be ATTRACTED to atoms with a ___________ charge.
positive
negative
neutral
Electric charges that DO NOT move through a current are known as
Magnetic
Electric
Electromagnetism
Static Electricity
What makes an electromagnet stronger?
greater number of loops
smaller number of loops
decreasing the current
decreasing the voltage
current flowing through a wire is surrounded by a/an
force field
magnetic force
nothing
this force is the attractive and repulsive force between two poles.
electric
magnetic
electromagnetic
electrons have this type of charge
positive
negative
neutral
When your hair stands on end, each strand repelling the other, you are experiencing
magnetism
ghosts
static electricity
What device changes mechanical kinetic energy into electrical energy?
electric motor
insulator
electromagnet
generator
The electric force between two or more charged objects depends on which of the following quantities?
charge and distance between the charged objects
mass and distance between the charged objects
charge and mass of charged objects
quantity of charges and their masses
In which of the following circuits will all of the remaining light bulbs go out if bulb 3 burns out?
An electric current is traveling in a wire. A compass is placed under the wire with the current flowing from north to south. In response, the compass needle will-
rotate because of a magnetic force that acts on the needle
rotate because of an electric force that acts on the needle
not move because moving electric charges do not exert magnetic forces on the needle
not move because moving electric charges do not exert electric forces on the needle
An electric current flows in a wire. What is one result?
a magnetic field is created
any nearby magnetic fields are destroyed
nearby magnets lose their strength
the metal of the wire cannot be affected by magnets
Why must every electric circuit have a voltage source, such as a battery?
Without a voltage source, the resistance would be too high
Without a voltage source, the resistance would be too low
Without a voltage source, there would be no electrons in the circuit
Without a voltage source, there would be no source of current
Dave notices that a wire is magnetic and attracts metal objects, What can be concluded about the wire?
an electric current is passing through it
heat is passing through it
radiation is passing through it
sound waves are passing through it
What happens if there is a break at any point in a series circuit?
no current flows
current flows through an alternative path
resistance goes to infinity
current reverses direction
Which switch, when opened, will make the light go out?
Q
R
S
T
Which circuit will not light the bulb?
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
