a student conducts an experiment with a magnet and four objects. he puts the magnets near each of the object then observes and records the outcomes.
Your question doesn't provide specific details about the four objects, the type of magnet used, or the exact outcomes observed in the experiment. However, I can describe the general process and possible outcomes that the student might encounter when conducting such an experiment.
1. **Planning and Hypothesis**: Before starting the experiment, the student should formulate a hypothesis about what might happen when the magnet is brought close to each object. For instance, the student might hypothesize that certain objects will be attracted to the magnet, while others will not.
2. **Objects Selection**: For this experiment, the student should ideally choose a variety of objects to test different materials. Common choices might be:
- A paperclip (made of steel or another ferromagnetic material)
- A coin (depending on the country, coins could be made of magnetic or non-magnetic metals)
- A piece of plastic (e.g., a plastic ruler)
- A wood block or a piece of cardboard
3. **Observation**: As the student brings the magnet close to each object, they will observe one of two main outcomes:
- **Attraction**: The object is attracted to the magnet and might stick to it if the object is small and light enough, or it might just move toward the magnet.
- **No Reaction**: There is no visible reaction from the object; it doesn't move toward the magnet nor does it repel away from it.
4. **Recording Results**: The student should carefully record what is observed for each object. Here's what they might find:
- **Paperclip**: Attraction (because most paperclips are made of steel, which is usually ferromagnetic)
- **Coin**: This could be attraction, no reaction, or a very weak attraction, depending on the material of the coin.
- **Plastic**: No reaction (since plastic is not magnetic)
- **Wood or Cardboard**: No reaction (wood and cardboard are not magnetic)
5. **Conclusion**: After all the observations have been made, the student would analyze the data and conclude which objects are magnetic and which are not based on their interaction with the magnet. The student would also evaluate whether the observations matched the initial hypothesis.
6. **Discussion of Results**: In this section, the student might discuss why certain materials (such as iron, nickel, and cobalt) are attracted to magnets, which is due to their ferromagnetic properties. The student may also talk about paramagnetic and diamagnetic materials which might have very slight magnetic interactions that are typically not observable without sensitive equipment.
7. **Extension**: For a more advanced study, the student could investigate the effect of distance on magnetic force by measuring how far away each object begins to feel the attraction, or they could try different types of magnets (like neodymium, which is very strong, versus a common bar magnet) to see if there is a different outcome.
Please specify the objects or outcomes if you need a more detailed or tailored description of the experiment.