Middle School Physical Science › Determine factors that affect electric and electromagnetic forces
If you try to put two north poles of a magnet together, what happens?
What do electric and magnetic forces have in common?
As the distance between two objects increases, the magnetic attraction:
Permanent magnets are also called:
Which of the following metals would be attracted to a magnet?
What do the dotted lines around this bar magnet represent?
Which of these materials lists could be combined to make an electromagnet?
Which of these does NOT affect the strength of a magnet as it pulls on an object?
The image shows a copper wire looped around an electromagnet. Which of these electromagnets will be stronger?
The image shows an electric generator. Based on this image, what can you say is probably true about this electric generator?