A student investigates how the force of attraction between a magnet and a small steel block depends on the distance between them.
The Table shows the results.
Table
| Distance between magnet and block in cm\text{cm}cm | Force of attraction in N\text{N}N |
|---|---|
| 1.0 | 0.48 |
| 2.0 | 0.20 |
| 3.0 | 0.095 |
| 4.0 | 0.052 |
| 5.0 | 0.030 |
Describe the relationship between the distance and the force of attraction.
Explain the results.
Use the idea of magnetic field lines in your answer.
The student says:
'When the distance doubles, the force of attraction halves.'
Evaluate the student's statement.
Use data from the Table.
The steel block is not a magnet.
Explain why the steel block is attracted to the magnet.