Vocabulary
Vocabulary 2
Magnets
Electricity
Miscellaneous
100
This is the name for the center of an atom.
What is the nucleus?
100
This is the force of attraction or repulsion between magnetic poles.
What is magnetism?
100
This is the point on a magnet where the force is strongest.
What is a magnetic pole?
100
Electric current flows through a continuous loop known as this.
What is a circuit?
100
The Earth has two of these, and a compass points to them.
What are magnetic poles?
200
These are materials like rubber, wood, or glass that do not allow electricity to flow.
What is an insulator?
200
This is a material that allows electric charges to flow freely.
What is a conductor?
200
This is what you get when you break a magnet in two.
What are two magnets?
200
This device consists of a coil of wire with current passing through it, thus producing a magnetic field.
What is a solenoid?
200
These lines never cross, but can be seen when iron filings are spread around a magnet.
What are magnetic field lines?
300
A material with no electrical resistance.
What is a superconductor?
300
These particles carry a negative charge in an atom.
What are electrons?
300
This is how domains are different in magnetic material than unmagnetized material.
What is the domains are aligned?
300
The key difference that makes and electromagnet useful in place of a permanent magnet is:
What is it can be turned on and off.
300
This is the difference between geographic North and magnetic North. It is different in different locations on Earth's surface.
What is magnetic declination?
400
The force exerted in the region around a magnet is known as this:
What is a magnetic field?
400
These particles carry a positive charge in an atom.
What are protons?
400
These are ways to destroy a magnet.
What heating or dropping?
400
These are the three basic features of an electric circuit.
What is source of current, wires, and a device. (often includes a switch as well.)
400
This is the effect of solar wind on Earth's magnetic field.
Why is the magnetosphere spread out on the side of Earth opposite the sun?
500
A glowing region caused by charged particles from the sun:
What is an aurora?
500
This is a device that interferes with the flow of electrical charge.
What a resistor?
500
This is how scientists know that Earth's magnetic field has changed over time.
What is alternating lines of magnetic domains in rock. (accept reasonable explanations)
500
This is how you can demonstrate that an electric current produces a magnetic field.
What is hold a compass close, arrange iron filings around it, etc. (accept reasonable answers)
500
This is the name for material with a strong magnetic effect. It comes from the Latin word for Iron.
What is ferromagnetic material?
M
e
n
u