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Energy Unit Review Questions 2
Test Description: 2nd set of questions
Instructions: Answer all questions to get your test result.
1) A path created for a current that allows only one route for the current is called a _____.
A
series circuit
B
parallel circuit
2) Which of the following is a device designed to open an overloaded circuit and prevent damage?
A
resistor
B
circuit breaker
C
conductor
D
insulator
3) The south pole of a magnet ____.
A
attracts another south pole
B
repels a paper clip
C
attracts a north pole
D
repels a north pole
4) The pull (magnetic field) of a magnet is _______.
A
strongest at the poles
B
the same at all parts of the magnet
C
strongest at the center
D
weakest at the poles
5) The atoms in a magnet are _____.
A
lined up
B
negatively charged
C
positively charged
D
arranged randomly
6) An electromagnet is _______.
A
a permanent magnet
B
a big magnet
C
a magnet that only works when it has electric current
D
made with bar magnets
7) The function of a generator is to change ______.
A
chemical energy into electrical energy
B
electrical energy into chemical energy
C
electrical energy into mechanical energy
D
mechanical energy into electrical energy
8) When you perform work on an object you increase the energy of the object.
A
True
B
False
9) All forms of energy can do work.
A
True
B
False
10) Machines may allow you to do less work over a longer distance.
A
True
B
False
*select an answer for all questions
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