Directions: Use the information provided and your knowledge of Physical Science to answer the following questions. Show all work where necessary.
Directions: Use the information provided and your knowledge of Physical Science to answer the following questions. Show all work where necessary.
A magnet can pull a paper clip across a table without touching it. As the magnet gets closer, the paper clip moves faster and farther, showing how magnetic forces act at a distance.
Magnets are objects that can attract certain kinds of metal, such as iron and steel. One of the most interesting things about magnets is that they can pull on objects without touching them. This happens because magnets create a magnetic field, an invisible area around the magnet where the magnetic force can act.
When a magnet is far away from a paper clip, the paper clip does not move. The magnetic force is too weak at that distance. But when the magnet gets closer, the magnetic force becomes stronger. The paper clip begins to slide across the table toward the magnet. The closer the magnet gets, the stronger the pull becomes. This is a clear cause-and-effect relationship: the distance changes the strength of the magnetic force, which causes the paper clip to move more or less.
This interaction helps us ask questions such as: How does distance affect magnetic force? Why do magnets attract metal but not wood or plastic? What happens if we place an object between the magnet and the paper clip? By observing how the paper clip moves at different distances, we can learn how magnetic forces work even when objects are not touching.
Distance from Magnet (cm) | Paper Clip Speed (cm/s) | Movement Distance (cm) |
|---|---|---|
8 | 0 | 0 |
6 | 0.5 | 2 |
4 | 1.4 | 6 |
2 | 3.2 | 13 |
Which observation shows that the magnet is affecting the paper clip without touching it?
Look at Table 1. How does the speed of the paper clip change as the distance from the magnet decreases from 8 cm to 2 cm?
What pattern do you observe between distance from the magnet and the movement distance of the paper clip?
Using the data, explain why the paper clip does not move when the magnet is 8 cm away.
What evidence shows that the magnet exerts a force on the paper clip without touching it, and how does distance affect this interaction?
Claim:
Evidence:
Reasoning:
At which distance does the magnet have the strongest effect on the paper clip?