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kkurt [141]
3 years ago
5

Describe the relationship between a compass and a magnet. Use C.E.R. Your C.E.R should have a one-sentence claim, three pieces o

f evidence, and two reasoning sentences that explain why you chose your evidence.
Physics
1 answer:
Charra [1.4K]3 years ago
8 0

Answer:

ANSWER KEY Relationship of Magnets CER

Claim (Write one sentence stating the cause and effect relationship of magnets.)

In magnets, like poles repel, whereas opposite poles attract.

Evidence (Provide scientific data to support your claim. The evidence should include how attraction and repulsion is demonstrated by the matchbox cars and the position of the poles of the magnets.)

When the North Pole of the magnet (orange) and the South Pole of the magnet (green) came close to one another they attracted and when the North Pole of the magnet (orange) and the North Pole of the magnet (orange) came close to one another, they repelled. The South Pole against the South Pole repelled as well. Therefore confirming that opposite poles attract and like poles repel. We were able to record data to show the distance that each car traveled by using either attraction or repulsion. Four out of five cars give evidence that the repulsion, created by opposing poles, had the stronger force.  

Reasoning (Explain why your evidence supports your claim. Describe how the poles of the magnet determine whether magnets attract or repel and how your evidence allowed you to see the force of the attraction or repulsion.)

Magnets have an invisible force around them, called the magnetic field, which has North and South Poles. The opposite poles attract and like poles repel. We saw this through completing the activity by seeing and measuring the distance that was traveled by each car using attraction and repulsion.

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Answer:

The coefficient of thermal expansion of material B is more than A

Explanation:

As we know that when we apply heat to a material it expands. The amount of expansion depends on the nature of the material. The amount of expansion depends on the coefficient of thermal expansion of the material.

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3 years ago
Must physics always be explained by math?
cluponka [151]

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Because Physics is mainly composited of math

Explanation:

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3 years ago
The pressure at the button of a glass filled with water
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Answer: Plz mark me brainlest.

The pressure in the bottom of the glass is defined as P= (pv)g/A.

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Bas_tet [7]

Answer:

98,000 pa

Explanation:

The formula for water pressure is as follows:

pressure = pgh

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