WorksheetsElectricity & Magnetism
Total questions: 45
Worksheet time: 37mins
An object or material will have a net electric charge because that object or material...
discharges protons
has an alternating current
has an excess or shortage of electrons
has a direct current
What is the difference between a series circuit and a parallel circuit?
A parallel circuit has only one path for current. A series circuit has more than one path
A series circuit has only one path for current. A parallel circuit has more than one path
What is an insulator?
A material that allows electrons to flow freely
A material that inhibits the flow of electrons
materials that cause static electricity
materials that measure potential difference
An alternating current is one in which the charges repeatedly change direction
True
False
A superconducting material
Requires very high current
Has no resistance to electron flow at room temperatures
Has no resistance to electron flow at low temperatures
Voltage equals current times resistance
Which of the following answers IS NOT correct about Ferromagnetic Material
Material that can be magnetized (such as iron) contain magnetic domains
have magnetized domains
also include non-metals
non-magnetic material can become magnetic
What does “I” represent in the equation?
V = I x R
voltage
resistance
current
kilowatts
The SI unit for current is
volts (V)
amps (A)
Ohms (Ω)
Watts (W)
With respect to magnetic poles, which of the following is not correct?
magnetic forces are strongest in the middle of the magnet
magnets have a north and south pole
If a bar magnet is suspended so it turns freely, it will point North
Like poles repel, unlike attract
If you cut a magnet in half, you will then have
No magnets
Two half magnets
One magnet
Two magnets
The image depicted represents
static electricity
the flow of electrons
a magnetic field
forces of attraction
The SI unit for voltage is
volts (V)
amps (A)
resistance (Ω)
watts (W)
What does Ohm’s Law state?
I = VR
V = I/R
V = R/I
V = IR
Which of the following is true of all magnets
They are all man-made
They are all made of iron, cobalt or nickel
They have two poles and a magnetic field
They are magnetic only when an electric charge goes through them
If you have two magnets and you try to put the two north poles together, what will most likely happen
The two poles will not touch each other because of magnetic repulsion
The magnets will stick together because of magnetic attraction.
The two poles will touch but not stick together
The magnets will lose their magnetism
A galvanometer is a device used to measure
current
resistance
voltage
magnetic field strength
Circuits that have an alternate route for electrons to pass
Series Circuit
Parallel Circuit
How could the strength of an electromagnet be increased?
by decreasing the amount of current in the electromagnet
by increasing the number of coils in the wires of the electromagnet
Circuits that have a single route for electrons to pass
Series Circuit
Parallel Circuit
A magnetic field is
something used to demagnetize pieces of metal
the area in which a magnet exerts magnetic force
an open area where you are likely to find natural magnets
an electric charge that can be sent through a wire to make it magnetic
An electroscope is a device that indicates when...
objects are negatively charged - only
objects are positively charged - only
objects have a neutral charge
when objects have a charge
Magnetic attraction is a property that makes two magnets stick together. It occurs when
a magnet is near a nonmagnetic object
two magnets’ south poles are near each other
opposite poles of two magnets are near each other
a natural magnet and a man-made magnet are near each other
What is a magnetic domain?
a group of electrons aligned together
a group of atoms with aligned magnetic poles
groups of magnets aligned together
groups of magnets with their poles aligned
The SI unit for Power is
volts (V)
amps (A)
resistance (Ω)
watts (W)
There are three (3) primary means of transferring energy
friction, induction, contact
friction, contact, conduction
friction, conduction, induction
induction, potential, kinetic
Which law is applicable to the statement below:
The total charge in an isolated system remains constant.
the law of conservation of energy
the law of conservation of mass
the law of conservation of momentum
the law of conservation of charge
A balloon rubbed against hair is positively charge because it
gained protons
lost electrons
lost protons
gained neutrons
Two socks taken out of the dryer were stuck together. Why?
because the socks became neutral in the dryer
Because neither sock is an insulator
Because the socks became charged in the dryer
Because the socks became conductors
The image is a
series circuit
parallel circuit
The image is a
series circuit
parallel circuit
The type of generator where current flows in one direction (ie. a dry cell battery).
Direct Current (DC)
Alternating Current (AC)
The type of generator where current current reverses direction in a regular pattern.
Direct Current (DC)
Alternating Current (AC)
A strong, temporary magnet made by inserting an iron core into a wire coil and passing an electric current through the coil.
commutator
galvanometer
solonoid
electromagnet
A device that detects electric current, using a solenoid.
commutator
galvanometer
solonoid
electromagnet
A reversing switch in a magnetic field.
commutator
galvanometer
solonoid
electromagnet
A coil of current-carrying wire that produces a magnetic field.
commutator
galvanometer
solonoid
electromagnet
Check each statement that applies
(you may select multiple statements)
I love science
I really love science
Science is the best of all subjects
