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5th Grade Science GCRCT Review #4
Electricity and Magnetism
30
Science
5th Grade
04/18/2013

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Cards

Term
All atoms are made of what three things?
Definition
Protons
Neutrons
Electrons
Term
Neutrons have _____ charge.
Definition
no
Term
Electrons have a _________ charge.
Definition
negative
Term
Protons have a ____________ charge.
Definition
positive
Term
_______________ happens when electrons (which surround the atom) move.
Definition
Electricity
Term
What are the two types of electricity?
Definition
Static Electricity and Current Electricity
Term
Static Electricity are when _________ move from an object or collect on an object.
Definition
electrons
Term
When an object has static electricity we say that the object is ELECTRICALLY ________________.
Definition
charged
Term
Electrons eventually ______________. This can happen slowly (when a balloon sticking to the wall eventually falls) or quickly (like a shock when you touch a contuctor or a lightening strike)
Definition
Discharge
Term
In current electricity, electrons flow from place to place by moving along __________.
Definition
atoms
Term
_________________ are materials that allow electtrons to flow easily thrrough them.
Definition
Conductors
Term
Copper, aluminum, shteel and other metals, water are all examples of ______________.
Definition
conductors
Term
_________________ are materials that do not allow electrons to flow easily through them.
Definition
Insulators
Term
Rubber, wood, plastic, cloth, and other non-metals are examples of ____________.
Definition
insulators
Term
Electricity can flow in a COMPLETE, CLOSED PATH called a ___________.
Definition
circuit
Term
What are the 3 main comonents of circuits?
Definition
1. Power source-a generator or a battery
2. Load-anything that you want to use the electricity
3. Path for electrons to flow (usually a wire)
Term
Switches are often used in circuits. They allow us to ______________ the flow of electrons.
Definition
control
Term
Electricity can only flow when the circuit is ____________.
Definition
Closed. If the circuit is open, electricity will not flow.
Term
A magnet is anything that produces ________________.
Definition
magnetic field lines
Term
Magnets can __________ or __________ other magnetic objects.
Definition
attract or repel
Term
Like poles _______ (push away) and unlike poles ___________ (pull towards) each other.
Definition
repel
attract
Term
What are the 2 types of magnets?
Definition
Permanent and Temporary
Term
________________ magnets are designed to keep their magnetism for a very long time.
Definition
Permanent
Term
_______________ magnets can be badr from some baterials by rubbing a magnet across them. Doing this lines upthe magnetic domains within the object.
Definition
Temporary
Term
Temporary magnets can _________________ when they are dropped or heated up.
Definition
demagnetize
Term
_________________ and magnetism are closely related.
Definition
Electricity
Term
When electricity flows through a wire, a ____________________ is produced around the wire.
Definition
magnetic field
Term
By wrapping the wire around a conductor, like iron, an _________________________ can be made.
Definition
electromagnet
Term
An ___________________ is a type of temporary magnet. It is only magnetic while electricity is flowing through it.
Definition
electromagnet
Term
What kind of magnet is used to pick up scrap metal in a junkyard or in generating electricty?
Definition
A temporary electromagnet
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