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- 1. Multiple Choice
Magnetism is caused by ________________.
protons in the nucleus
the motion of electric charges
light waves striking certain rocks
magic
- 2. Multiple Choice
Their movement creates an electric current and causes each ___________to act like a microscopic magnet.
proton
neutron
electron
crouton
- 3. Multiple Choice
Most elements that are magnetic are _________.
metals
nonmetals
metalloids
man made
- 4. Multiple Choice
Moving a magnet next to a wire causes ____________.
the wire to catch fire
nonmetals to be repelled
a gravity wave
an electric current
- 5. Multiple Choice
A current moving through a wire causes _____________.
a magnetic field
alternating currents
direct currents
protons to move through the wire
- 6. Multiple Choice
Electric motors convert _________ energy into _________ energy.
kinetic / electric
electric / kinetic
heat / kinetic
heat / electric
- 7. Multiple Choice
Electric generators convert _________ energy into _________ energy.
kinetic / electric
electric / kinetic
kinetic / heat
electric / heat
- 8. Multiple Choice
The Earth’s magnetic shield protect life from _____________.
gravity waves
asteroid impacts
aliens
harmful space radiation
- 9. Multiple Choice
Where does the kinetic energy for electric generators come from?
heat from burning fossil fuels
wind
moving water
all of these
- 10. Multiple Choice
___________ is a record of Earth's past magnetic fields trapped in basaltic lava.
Arheomagnetism
Paleomagnetism
Electromagnetism
Electromagnetic induction
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