Question

Hypothesis: Magnetic fields are stronger at higher temperatures. An experiment is designed where a magnet is tested at three different temperatures to measure how many paperclips the magnet picks up. For the first trial, the magnet is placed in an ice-water bath for 20 minutes. The magnet is used to pick up paper clips three times, with the number of paper clips counted after each trial. The cold magnet picks up an average of 60 paper clips . The magnet is left to sit at room temperature for 20 minutes. The magnet is used to pick up paper clips once, and the room temperature magnet picks up an average of 48 paper clips. The magnet is then put in boiling water for 20 minutes. The magnet is used to pick up paper clips twice and picks up an average of 33 paper clips. What error was made?
A. The magnet was not used the same number of times at each temperature.
B. Three different magnets were used for the different temperature trials.
C. The number of paper clips was not the same for each trial.
D. The magnet was not given the same amount of time to reach the correct temperature.

Answer 1

The error in this magnetic field experiment is that the magnet was not used the same number of times at each temperature (option A).

What is an experiment?

An experiment is a test under controlled conditions made to either demonstrate a known truth, examine the validity of a hypothesis, or determine the efficacy of something previously untried.

For an experiment to yield valid outcomes, it must be controlled, meaning that only one independent variable must be tested at a time.

According to this question, an experiment is designed where a magnet is tested at three different temperatures to measure how many paperclips the magnet picks up.

However, the following was observed in terms of the number of times the magnet was used to pick up paper clips:

• First temperature (ice-bath water) - 3 times
• Second temperature (room temperature) - once
• Third temperature (boiling water) - 2 times

Therefore, the error in this magnetic field experiment is that the magnet was not used the same number of times at each temperature.

Learn more about experiments at: brainly.com/question/28285324

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Answer 2

Answer:

A. The magnet was not used the same number of times at each temperature.

Explanation:

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