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Magnets/Motors Test

Test on magnetic energy, electric energy, electromagnets, and motors

QuestionAnswer
Also known as heat energy thermal energy
movement of electrons along a path electric energy
stored energy potential energy
energy created when the domains of a substance point in the same direction magnetic energy
energy of motion kinetic energy
average kinetic energy of the atom in a substance thermal energy
a sled at the very top of a hill has a lot of ______________ energy potential
Magnets have domains that are pointed in _________________ directions similar
The south pole of a magnet will repel a _______________ pole south
What is responsible for all magnetism? spinning electrons
Can a magnet lose its magnetism if it is heated to extreme temperatures? yes
What three things are necessary to make a motor spin? battery, wire coil, and a magnet
The south pole of a magnet will attract a _______________ pole north
Can a magnet lose its magnetism if it is hit really really hard? yes
Non-magnetic objects have domains that are pointed in _______________ directions different
Can a magnet lose its magnetism by soaking it in soda? no
The north pole of a magnet will repel a ________________ pole north
Motors covert electric and magnetic energy into ________________ energy. kinetic
What special types of magnets can be turned on and off? electromagnets
Two south poles of magnets will ____________. repel
Would an ipod have a motor? no
Would a fan have a motor? yes
What special objects are found in speakers that help them make sound? electromagnets
Would a calculator have a motor? no
What are the opposite ends of a magnet called? north and south poles
Would a toaster have a motor? no
Would a blender have a motor? yes
If more wire coils are added to an electromagnet, will the electromagnet become stronger or weaker? stronger
Do all types of wires create strong electromagnets? no
Will a stronger battery make a stronger electromagnet? yes
If two magnets are farther apart from each other, will their magnetism be stronger or weaker? weaker
Will a magnet still work if it is broken in half? yes
When magnetic energy and ______________ energy interact in a motor, it is transformed into kinetic energy. electric
In order for a magnet to pick up an object, it has to temporarily line up the ____________ in the object. domains
Energy cannot be created or destroyed, it can only be _________________ from one type of enegry to another type. transformed
What two parts of a light bulb need to be connected to a circuit? metal side part and the bottom
What two parts of the batter need to be connected to a circuit? positive and negative
How many paths does a series circuit have? one
What happens when one bulb is taken out of a parallel circuit? the other bulbs stay on
How many paths does a parallel circuit have? more than one
What happens when one bulb is taken out of a series circuit? all bulbs go out
Created by: Cabrini