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WorksheetsPS3.C.1 - Magnetism Quiz
Total questions: 48
Worksheet time: 1hrs 17mins
The diagram shows the magnetic field surrounding a bar magnet. The closer together the lines of force, the stronger the magnetic field. According to the diagram, where is the magnetic field the strongest.
north pole
south pole
both poles
in the middle
Alexandra was preparing to go on a hike in the woods. She gathered the equipment she would need and placed it on the kitchen counter. By chance, she placed her compass near an electrical outlet. Although the compass was not moving, the compass needle turned toward the outlet because....
the electric current in the outlet produced a magnetic field
the compass only works properly outside
the kitchen counter was made of a ferrometal
the kitchen has a microwave
Which pair of magnets would result from cutting the magnet in half?
According to the diagram, which pair could both be north poles?
A and B
B and C
A and C
C and D
The picture shows an experiment used to determine the effect of using more nails in the core of an electromagnet. Which of the following would make this a better-designed experiment?
Using a different number of batteries for each electromagnet
Using the same number of turns of wire for each electromagnet
Inserting an ammeter in each circuit between the battery and the nails
Using a different size battery for each electromagnet
This structure produces power for use in the home by converting ........
chemical energy into mechanical energy
electrical energy into mechanical energy
chemical energy into electrical energy
mechanical energy into electrical energy
A magnet will not attract all metal objects. Which object below will a magnet not attract?
Nail
Foil
Battery
compass needle
Harry wanted to find out how to make an electromagnet stronger. The results of his experiment are listed in the table above. According to his data, which of the following foes not make an electromagnet stronger?
increasing the number of batteries that are connected
increasing the number of wire turns around the core
increasing the number of mails inside the core
increasing the number of tacks used
Scientists believe that magnetism is caused by the spin of certain atomic particles called....
electrons
protons
neutrons
magnetrons
Looking at the diagram of a simple electric motor, what would be a way to increase the speed of the fan.
decrease the coil size
decrease the size of the permanent magnet
increase the fan size
increase the battery size
Which is best represented by the diagram?
aluminum foil
nail in contact with a magnet
normal iron nail
glass
A student performed an experiment to determine the number of paper clips that are attracted to an electromagnet as the amount of current changes. The data collected is displayed in the table.
Which graph best describes the relationship between magnetism and electrical current?
A material through which electrons do NOT flow easily is a(n) ______.
insulator
conductor
fuse
circuit breaker
What is the current produced by a 9-volt battery flowing through a resistance of 0.2 ohms?
1.8 amps
45 amps
0.022 amps
8.8 amps
Which two areas of physical science are closely related to the development of electric motors and generators?
sound and light
electricity and sound
light and magnetism
electricity and magnetism
Which of the following will decrease the strength of the magnetic field around a wire?
increasing the current flowing through the wire
using less loops around the iron core
flipping the direction of the current flowing through the wire
using a larger iron core
This exerts a force that causes other electric charges to move.
electrical poles
electrical fields
insulators
conductors
The Law of Conservation of Charge states that _____.
charge can be created and destroyed but NOT transferred.
charge cannot be created and destroyed but it can be transferred.
charge cannot be created and destroyed and it cannot be transferred.
none of the answers
What happens if you line the magnets up so that two of the same poles face each other? (ex. North Pole & North Pole)
They will attract
They will repel
This is an example of what type of circuit?
simple
series
parallel
What happens when you split a magnet in half?
It becomes twice as strong
You end up with two smaller magnets
You end up with a North Pole magnet and a South Pole Magnet (as long as you split it perfectly in half)
Your magnet loses all of it's magnetism (it leaks out of the break)
Why does a compass align itself with Earth's North Pole?
Because compass needles are slightly magnetized and align themselves with earth's magnetic field
Because one of the poles of the magnet is called the North Pole, so it would only make sense that it would be on the North side
They don't actually do this, they just align themselves with the North side of a map
Because North is slightly downhill (as long as you are in the Northern Hemisphere) so gravity causes the compass to point North
What happens when an object with random magnetic domains is placed into a strong magnetic field?
It is attracted to the magnetic field
It aligns with the field and shoots off like superman
It aligns with the field and usually becomes a temporary magnet itself
Its domains start moving faster and it gets warmer
How are two ways that Earth's magnetic field is useful for us?
It allows us to know which direction is "Down" and allows for better navigation
It protects the surface of the earth from UV rays and causes tides
It produces the Auroras and causes the spin of the earth
It blocks the harmful Solar Wind and allows for more efficient navigation
What happens magnetically when electricity runs through a wire (or any charged particle moves).
Nothing, magnetism and electricity are separate phenomenon
The magnetic field matches that of the Earth
It generates a magnetic field around the wire
It uses magnetism to move the charge through the wire
How can I make a permanent magnet no longer magnetic? (Select all that apply)
Hit/Drop it repeatedly
Put it near a tv or cell phone
Submerge it in water for several hours
Put it next to another magnet long term
Heat it up
What is a device that changes electrical current in a magnetic field into kinetic energy (movement)? (Vocab)
Magnetic Pole
Dipole
Electromagnet
Electric Motor
Magnetic Domain
This is when the magnetic domains within a piece of metal (like a nail) are oriented by an electrical current, making a very strong temporary magnet. (Vocab)
Magnetic Pole
Dipole
Electromagnet
Electric Motor
Magnetic Domain
These are the areas of a permanent magnet where the magnetic field is the strongest, usually one at each end of the magnet. (Vocab)
Magnetic Pole
Dipole
Electromagnet
Electric Motor
Magnetic Domain
When there is a permanent magnet, these are the atoms with partial magnetism that are all arranged along the same direction. (Vocab)
Magnetic Pole
Dipole
Electromagnet
Electric Motor
Magnetic Domain
When an electron moves from an excited state back to its normal energy level, it creates a disturbance in the magnetic field around it and makes what? (Vocab)
Gravity Wave
Permanent Magnet
Electromagnetic Wave
Electromagnet
Electric Motor
This is a material in which the magnetic domains are naturally aligned and stay that way for a very long time.(Vocab)
Gravity Wave
Permanent Magnet
Electromagnetic Wave
Electromagnet
Electric Motor
What is this?
electromagnet
permanent magnet
motor
generator
Are the magnetic field lines in the picture correct?
Yes, because they point from north to south.
No, because they point from north to south (they're supposed to go the other way).
Yes, because the North pole is on the left in all pictures.
No, because the North pole is on the left in all pictures (it's supposed to be on the right).
Looking at the field lines in this picture, these two magnets are ________
Attracting
Repelling
Attracting and Repelling
Doing nothing
