Introduction
In the experiment, we will determine whether a magnet’s temperature affects the magnetic pull of the magnet, i.e., whether the magnetic pull gets affected by the temperature of a magnet. And we will also be determining the ways and rate of change of the magnetic pull and how this rate returns to normal.
Aim
To determine if the magnet’s temperature affects the magnetic pull of the magnet.
Theory
The field that surrounds the permanent magnet and a moving charged particle are called magnetic pull.
Requirements
1. Ten Ceramic Bar Magnets
2. Non-Magnetic Tongs
3. Two Packages of Steel-Plated BB Bowls
4. A Bowl
5. A Triple Beam Balance Scale
6. Two Slabs of Dry Ice
7. Five Porcelain Bowls
8. A Stove
9. Glass Pot
10. Towel
11. Two Slabs of Dry Ice
Procedure
Step 1: Heat or cool each magnet to its appropriate temperature, which is 108 degrees F, 32 degrees F, 212 degrees F, and 400 degrees F.
Step 2: Compare this to the new normal temperature of 65 degrees F.
Step 3: Test the attraction of each magnet by placing these magnets with non-magnet tongs, placed in a bowl of steel-plated BBs.
Step 4: Remove the magnet and BBs from the magnet immediately.
Step 5: Place them in a separate bowl.
Step 6: Repeat this process at intervals of one, five, and thirty minutes.
Step 7: Count the BBs and weigh them in grams.
Observation
1. The hotter the magnet gets, the weaker the pull gets.
2. The cooler the magnet gets, the stronger the pull gets.
3. When the cooled magnet returns to room temperature for the first time, the magnetic pull gets lower rapidly.
4. After five minutes, the temperature dropped more and decreased to thirty minutes.
5. The pull strength of a heated magnet rises in the same way as the pull strength of a cooled magnet falls when they are left at a room temperature of 65 degrees F.
6. All the magnets returned to their original strength after returning to their original temperature.
Result
1. Our hypothesis was correct for some parts.
2. Our hypothesis, which said that permanent damage would be done to the magnet if heated above 400 degrees F, was incorrect.
3. We measured the magnet’s temperature by counting how many grams of BB it picked up.
Precautions
1. Wear gloves for performing this experiment.
2. Record your observation carefully.
VIVA Questions With Answers
Q.1 What was the aim of your experiment?
ANS. To determine if the magnet’s temperature affects the magnetic pull of the magnet.
Q.2 What do you understand about magnetic pull?
ANS. The field that surrounds the permanent magnet and a moving charged particle are called magnetic pull.
Q.3 What would happen if the magnets were heated to 400 degrees F?
ANS. It will return to its original strength after cooling. In other words, no damage will be done to this magnet.
Q.4 How did you measure the temperature of the magnet?
ANS. We measured the magnet’s temperature by counting how many grams of BBs it picked up.
Q.5 How does the magnetic pull depend on the temperature of the magnets?
ANS. The hotter the magnet gets, the weaker the pull gets. And the cooler the magnet gets, the stronger the pull gets.
Saquib Siddiqui is a Mechanical Engineer and a content creator. He has special interest in science experiments and teaches the same to school and college students. He is also a technical lead at RUDE LABS PVT. LTD.
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