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- 1. Multiple Choice
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)
- 2. Multiple Choice
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
- 3. Multiple Choice
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
- 4. Multiple Choice
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
- 5. Multiple Choice
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
- 6. Multiple Choice
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
- 7. Multiple Choice
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
- 8. Multiple Choice
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
- 9. Multiple Choice
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
- 10. Multiple Choice
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
- 11. Multiple Choice
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
- 12. Multiple Choice
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
- 13. Multiple Choice
This is how we perceive the amplitude (intensity) of EM waves (light). (Vocab)
Brightness
Color
Smell
Pitch
Volume
- 14. Multiple Choice
This is how we perceive the frequency (wavelength) of EM waves (light). (Vocab)
Brightness
Color
Smell
Pitch
Volume
- 15. Multiple Choice
Because electromagnetic waves travel as both a particle and a wave, this is the "particle" component of an electromagnetic wave. (Vocab)
Proton
Muon
Photon
Higgs Boson
Transceiver
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