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Physical Science Module 12 Part 2
Test Description: Electromagnetic force
Instructions: Answer all questions to get your test result.
1) Magnets exist because their atoms are_________________ so that their movement mimics the flow of electricity. (negative-positive)
A
aligned
B
like waves
C
in a circle
2) You have two wires. One is long and the other is short. Other than that, they are identical. Which has more resistance?
A
Short Wire
B
Long wire
3) You have two wires. One is thin, and the other is very thick. When the same current is run through each wire, which will get hotter?
A
Thin wire
B
Thicker wire
4) In which circuit will the light bulb glow?
A
Open Circuit
B
Closed Circuit
5) Three lights are in a circuit. When one burns out, they all go out. When the burnt- out one is replaced with a good light, the other two lights work again. Are the lights wired in a parallel circuit or a series circuit?
A
Series
B
Parallel
6) Three lights are in a circuit. When one burns out, the other 2 stay on. Are the lights wired in a parallel circuit or a series circuit?
A
Series
B
Parallel
7) If it takes a flow of charged particles to make a magnet, where is the charged particle flow in a permanent magnet?
A
Charged particles are the atomes inside the material
B
they float around the magnet
8) Is it possible to have a permanent magnet with only a north pole?
A
No
B
Yes
9) Is it possible to make a magnet from something that is not a magnet?
A
No
B
Yes
10) If a material does not respond to a magnet, what can you conclude about the atoms in that material?
A
Its charges are not aligned
B
the atoms are too small
11) There are how many sides to every magnet?
A
2
B
1
C
4
D
6
12) The 2 sides are called
A
North and South Poles
B
Positive and negative Poles
C
North pole and Southern hemisphere
D
Red and Blue
13) Do all atoms need to align in a substance to make it magnetic?
A
no
B
yes
14) The more atoms are aligned the __________________ the magnet.
A
weaker
B
larger
C
smaller
D
stronger
15) When you split a bar magnet what happens to the 2 new pieces?
A
it is no longer magnetic
B
you get two new bar magnets only smaller
C
you get one north magnet and a south magnet
*select an answer for all questions
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