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Physical Science

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1.
3 points
Identify the 3 metals that are magnetic.
2.
1 point
The __________ are regions where the magnetic force exerted by a magnet is strongest.
3.
1 point
When a transitional wave travels through a medium, which way does matter in the medium move?
4.
1 point
The process in which two waves overlap and form a new wave is called __________ .
5.
1 point
When a bar magnet is broken into two pieces, each piece has a north and south pole because __________.
6.
1 point
The effect of two waves overlapping to form a wave with an amplitude less than either of the original waves is called _______.
7.
1 point
Which of the following elements is a magnetic material?
8.
1 point
The bending of a wave as it passes around an obstruction is called ______________.
9.
1 point
A __________ is a repeating disturbance that transfers energy through matter or open space.
10.
1 point
The bending of a wave as it passes through an obstruction is called ____________.
11.
1 point
As frequency increases, wavelength __________ .
12.
1 point
The energy of a wave can be increased by increasing its __________.
13.
1 point
The distance between the rest area and the crest is the ________.
14.
1 point
The __________ of a wave is how many wavelengths pass a fixed point each second.
15.
1 point
Which of the following is found in all magnets?
16.
1 point
When a compressional wave travels through a medium, which way does matter in the medium move?
17.
1 point
North poles of magnets always attract __________ .
18.
1 point
Iron is a magnetic material, but an iron nail does not behave like a magnet because __________ .
19.
1 point
What effect does increasing the amount of coils around a nail have on an electromagnet?
20.
1 point
Reflection occurs when a wave __________ .
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