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science test12/20/22

Electromagnets, Magnets, Vocab, and true or false

QuestionAnswer
Electromagnetic Waves: The distance form one crest of a wave to another is a....... Wavelength
Electromagnetic Waves: The number of crests of a wave that pass a certain point in a given amount of time is......... frequency
Electromagnetic Waves: The highest frequency electromagnetic wave is... Gamma ray
Electromagnetic Waves: The lowest frequency electromagnetic wave is... Radio waves
Electromagnetic Waves: Bees can see this type of radiation UV/ Ultraviolet light
Electromagnets: To increase the strength of a solenoid you need to add.... Add more coils
Electromagnets: How do you make an electromagnet stronger Bigger batteries Iron core More coils
Electromagnets: Two examples of electromagnets are...... Doorbell MRI
Magnets: A field produced by a magnetic object that exerts force on other magnetic materials Magnetic field
Magnets: How do you know an object has left a magnetic field The attraction is weak The magnet is no longer being pulled towards the magnet
Magnets: What happens when you hold a magnet next to a compass It messes up the compass and the compass needle will point towards the magnet
Magnets: Where is a compass always pointing Earths magnetic North
True or False: The magnetic field is the strongest at the poles True
True or False: Electromagnets can be controlled by controlling the electric current True
True or False: Electromagnets are the strongest magnets True
Electromagnetic waves are called longitudinal False, they are called transvers waves
True or False: Electromagnetic waves travel at the speed of sound False, they travel at the speed of light
Vocab: An object that can attract certain substances Magnet
Vocab: A push or pull Force
A coil of wire that carries a current and acts like a magnet Solenoid
Created by: sunny28
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