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