Mrs. Burns
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Science Practice
Your Name:
1) What causes static electricity?
an object losing electrons
an object gaining electrons
when positive and negative charges balance
when positive and negative charges are unbalanced
2) Where is the magnetic field the strongest?
at the poles
in the middle
at the south pole
at the north pole
3) A material that conducts electric current poorly is called
a circuit
a charge
a conductor
an insulator
4) Which of the following would be a good conductor?
wood
copper
rubber
plastic
5) A circuit will work as long as it is
opened
closed
full
without power
6) What type of circuit is your house made up of?
parallel
series
south seeking
north seeking
7) Lightning is an example of
positive charges jumping from cloud to cloud
negative charges jumping from cloud to cloud
8) When 2 balloons are attracted to each other you know
There is equal number of positive and negative charges
They have the same charge
They have no charges
They have different charges
9) If charged particles in an object are not balanced, the object
builds up _____________.
Answer:
10) A charge in motion is called an _____________.
Answer:
11) ____________ is the pushing or pulling force that exists when a
magnetic material is near.
Answer:
12) Current flows in only one direction in a _____________ circuit.
Answer:
13) The quality of __________ opposes the flow of electric current
through a material.
Answer:
14) Because of Earth's ____________ a compass needle points in a north-
south direction.
Answer:
15) One advantage of an _____________ over a natural magnet is that its
magnetic field can be turned off.
Answer:
16) A _____________ circuit can handle appliances that use different
amount of electric current.
Answer:
Printable Version
Last Modified: Friday, April 20, 2012
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