1. When the voltage is increased, the strength of the electromagnet also increases.
2. If we decreased the number of coils wrapped around the nail, the electromagnet would pick up fewer paperclips.
3. The independent variable in our experiment is the amount of voltage applied to the electromagnet.
4. The dependent variable in our experiment is the number of paperclips picked up by the electromagnet.
5. A permanent magnet always has a magnetic field because its atoms are aligned in a way that creates a consistent magnetic field.
6. The opposite poles of a magnet will attract each other (north and south poles), while like poles (north and north, south and south) will repel each other.
Conclusion
Answer the following questions.
When the voltage is increased what happens to the strength of the electromagnet?
If we decreased the number of coils wrapped around the nail, what would happen to the number of paperclips the electromagnet would pick up?
What is the independent variable in our experiment?
What is the dependent variable in our experiment?
Why does a permanent magnet always have a magnetic field?
Which poles of a magnet will attract each other?
1 answer