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WorksheetsMagnetism and Electromagnetism Review
Total questions: 25
Worksheet time: 19mins
Which of the following statements describing magnets is the most correct?
All magnets have two poles, either both south or both north.
Magnets only have one pole. It is either a south pole or a north pole.
All magnets have two poles, one north pole and one south pole.
Magnets can have any number of poles as long as the number is odd.
Which of the following elements is NOT a permanent magnet?
Iron (Fe)
Cobalt (Co)
Copper (Cu)
Nickel (Ni)
Which of the following statements about permanent magnets is the most correct?
Permanent magnets are any material and are always magnetic.
Permanent magnets are only a few materials and are always magnetic.
Permanent magnets are magnetic when placed in a magnetic field and keep the field permanently.
Permanent magnets are magnetic when placed in a magnetic field but lose the field quickly.
What type of materials make up temporary magnets?
Metals except for Iron, Cobalt, and Nickel.
All metals.
Any material can be a temporary magnet.
All materials made of wood or plastic.
What is the main difference between electric charges and magnetic poles?
There can be several different types of magnetic poles, but there are only two types of charges.
Charges can act over an area whereas magnets can only make a force when in contact.
Magnetic poles can attract and repel, charges only repel.
Electric charges can be isolated and separated whereas magnetic poles cannot be seperated.
A magnetic field will always travel away from the ________ and into the _______ pole.
north, north
south, south
north, south
south, north
Based on the image of the magnetic field shown, which magnetic poles most likly represent spot A and spot B.
Spot A is a North pole and Spot B is a South pole.
Spot A and Spot B are both North poles.
Spot A and Spot B are both South poles,
Spot A is a South pole and Spot B is a North pole.
Based on the magnetic field created by the two magnets shown in the image, what are the magnetic poles most likely at spot A and spot B?
Spot A is a North pole and Spot B is a South pole.
Spot A is a South pole and Spot B is a North pole.
Spot A and Spot B are both South Poles.
Spot A and Spot B are both North Poles.
Why does the Earth's inner core a strong magnetic field?
There is solid iron in the Earth's inner core.
There is molten (liquid) iron spinning in Earth's inner core.
There is a core of iron running east and west along the equator.
There metals such as aluminum and copper in the earth core spinning around.
A compass lies up _________ to the magnetic field around it.
perpendiculap
parallel
vertically
diagonally
Which of the following is NOT needed to make an electromagnet?
Wire wrapped in coils or loops.
A strong magnetic material.
A battery or source of electric current.
A wheel to turn to create motion.
Which of the following would decrease the strength of an electromagnet?
Increasing the loop or coils of electric wire.
Increasing the electric current by using a stronger battery,
Adding more iron into the middle of the loops of wires.
Using a wire with a greater resistance.
Electromagnetic induction occurs when a ______________ is moved in a ____________ direction through a coils of wire.
iron nail, parallel
iron nail, perpendicular
magnet, parallel
magnet, perpendicular
An electromagnet uses ___________ to create _____________.
electric current, a magnetic field.
electric current, an electrostatic field
magnets, an electrostatic field
magnets, a magnetic field.
The Earth's magnetic
South pole is located near Earth's geographic ____________ pole.
North
South
East
West
Electromagnetic induction is the creation of _______________ using ________________.
magnetism, electric current
electric current, the motion of a magnet
magnetism, the motion of a magnet
electric current, a difference in voltage.
An electric generator uses ____________ to create ______________.
kinetic energy (motion), electrical energy
electrical energy, kinetic energy (motion)
kinetic energy (motion), thermal energy.
thermal energy, nuclear energy
When electric current runs through a circular loop of wire, where is the magnetic field the strongest?
Outside of the loop of wire.
In the center of the loop of wire.
Around the edge of the wire.
The magnetic field is the same all around the wire.
What part of the atom creates magnetic areas, called domains, within certain materials?
Stationary electrons inside the atom.
Spinning electrons inside the atom.
Spinning protons inside the atom.
Stationary protons inside the atom.
What two properties does a material need to make it magnetic?
Areas of domains all aligned in the same direction.
Extra electrons that are all spinning in the same direction.
Areas of domain all pointed in different directions.
Extra electrons spinning in opposite directions.
An electric motor converts ___________ into ___________.
electrical energy (electricity), kinetic energy (motion)
kinetic energy (motion, electrical energy (electricity)
thermal energy (heat), kinetic energy (motion)
kinetic energy (motion), thermal energy (heat)
A student breaks a bar magnet in half. What is created after the student breaks the bar magnet in half?
Two magnets with only north poles.
Two magnets with only south poles.
Two magnets with both north and south poles.
The pieces that are no longer magnetic.
Based on the information below, rank the electromagnets from strongest to weakest:
# of Coils Voltage in battery
Electromagnet A: 100 100V
Electromagnet B: 10 12V
Electromagnet C: 1000 240V
Electromagnet D: 500 600V
A>B>C>D
C>D>A>B
B>A>C>D
A=B=C=D
Which of the following would give the most amount of electric current (electricity) through the process of electromagnetic induction?
Placing a magnet inside a coil of wires.
Placing a magnet next to a wire.
Moving a magnet in a parallel direction along the coils of wire.
Moving a magnet in a perpendicular direction across the coils of a wire.
Based on the image of the magnetic field created, which location would a magentic object experience the greatest magnetic force?
A
B
C
D
