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Unit 3
Magnets and Electricity
16
Science
4th Grade
10/27/2014

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Cards

Term
What is a magnetic field?
Definition
An area where the force of a magnet is felt
Term
What is an electric force?
Definition
An interaction between two objects that have a positive or negative charge
Term
What does repel mean?
Definition
To push away
Term
Which form of energy has both a postive and negative charge?
Definition
Electric and Magnetic
Term
Why does a magnet lose strength each time you drop it?
Definition
The atoms get scrambled
Term
What is the common name for Aurora Borealis?
Definition
Northern Lights
Term
Which scientist invented/discovered that lightning is a form of electricity?
Definition
Benjamin Franklin
Term
What is lodestone?
Definition
A natural magnetic rock
Term
What early people experimented with lodestone and invented the compass?
Definition
Chinese
Term
What is a circuit?
Definition
A path for an electrical current to use
Term
Define static electricity
Definition
A type of electricity that means not moving
Term
What is an electromagnet
Definition
wire wrapped around a piece of metal that creates a temporary magnet when an electric current passes through it
Term
What is a series circuit
Definition
A circuit with only one path
Term
What is a magnet
Definition
An object that attracts certain items like steel and iron
Term
What is a parallel circuit
Definition
A circuit that has more than one path
Term
What is a conductor?
Definition
material that electricity can pass through easily
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