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MAgnetism
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Instructions: Answer all questions to get your test result.
1) An instrument which uses magnet to give direction is known as
A
compass
B
vacuum cleaner
C
motor
D
Magna Lock
2) Magnetic materials include
A
steel
B
iron
C
nickel
D
all of them
3) A compass points north because
A
Earth’s north magnetic pole is there
B
Earth’s gravity is strongest at the North Pole
C
Earth has no poles
D
Earth’s south magnetic pole is there
4) A spaceship is traveling through space. Suddenly, its kinetic energy decreases. What can you say about the speed of the spaceship?
A
The speed increased as its kinetic energy was converted into speed.
B
There is no way to know what happened to the speed.
C
The speed decreased as its kinetic energy decreased.
D
The kinetic energy remained the same because speed and kinetic energy are not related.
5) What do magnets do?
A
Attract iron objects.
B
Attract all types of objects
C
Attract wooden objects
D
Attract plastic objects.
6) The north pole of one magnet attracts
A
either the north pole or the south pole of another magnet.
B
the north pole of another magnet
C
the south pole of another magnet.
D
none of the above
7) You can use electricity to make a magnet.
A
I do not know
B
Maybe
C
True
D
False
8) Electromagnets are used in
A
a.loud speakers
B
c. both a and b
C
d. cabinet doors
D
b.door bells
9) A substance consisting of a coil of wire with an iron core and is only magnetized when an electric current flows through it is called
A
electromagnet
B
magnet
C
coil
D
battery
10) Choose an object/s that uses electricity
A
a. light bulb
B
d. a and b
C
b. microwave oven
D
c. candle
*select an answer for all questions
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