The Earth's magnetic field is approximately how many times weaker than that of a
Practice Questions
Q1
The Earth's magnetic field is approximately how many times weaker than that of a typical refrigerator magnet? (2023)
10 times
100 times
1000 times
10000 times
Questions & Step-by-Step Solutions
The Earth's magnetic field is approximately how many times weaker than that of a typical refrigerator magnet? (2023)
Step 1: Understand what a magnetic field is. A magnetic field is an area around a magnet where magnetic forces can be felt.
Step 2: Know that the Earth has its own magnetic field, which is created by movements within its core.
Step 3: Learn that a typical refrigerator magnet is much stronger than the Earth's magnetic field.
Step 4: Find out that the strength of the Earth's magnetic field is measured in microteslas (µT) and is about 25 to 65 µT.
Step 5: Compare this to a refrigerator magnet, which is usually around 1000 µT or stronger.
Step 6: Calculate how many times weaker the Earth's magnetic field is by dividing the strength of the refrigerator magnet by the strength of the Earth's magnetic field.
Step 7: Conclude that the Earth's magnetic field is approximately 1000 times weaker than that of a typical refrigerator magnet.
