Understanding Magnetism Video Notes
Directions: Answer the questions in the space provided. Put these in your “notes” as
they will constitute potential information for a test or quiz.
1.
What is a lodestone?
2.
What is the source of all magnetism?
3.
What causes the Earth’s magnetic field?
4.
Where does the Earth’s magnetic converge at?
5.
What happens to the Earth’s magnetic field every few hundred thousand years?
6.
What does pounding hot iron do?
7.
What do pigeons (and spiny lobsters) use to navigate?
8.
Where do humans have magnets in their bodies?
9.
A compass moves when next to a wire carrying a current; why?
10. What happens when you move a magnet inside a coiled wire?
11. What type of wave transmits radio and television signals?
12. How does the “maglev” use magnetism to levitate?
13. You can generate energy by splitting an atom or “squeezing” two atoms together.
These are nuclear __________ and __________.
14. What are the four fundamental forces?