Electromagnetism
What is an electromagnet?
What is a coil of wire around an iron core?
What is a field?
What is the area in which an object experiences a force?
Name three types of fields
What is gravitational, electric, and magnetic fields?
Double the Reward! Double the Risk! -200 if wrong. +200 if right! What is something an electromagnet powers?
What is a Generator, loudspeakers, microwaves, maglev trains, tape recorders, and electric buzzers or bells?
A magnetic field is?
What is the area around a magnet in which magnetic forces affect magnetic objects?
What is a solenoid?
What is a long straight coil of wire?
True or False: Electromagnets can’t control their current
What is false
What happens when a magnet is near a compass?
What is the needle follows the magnet?
What does an ammeter measure?
What is they measure electric current?
What is an advantage to an electromagnet?
What is you can control the current and strength?
Field lines are …
What is a visual representation of the force of a field?
What unit of measurement does an ammeter use?
What is an amp?
DAILY DOUBLE!!! List three important facts about electromagnets.
Field lines point away from? And they point toward?
What is they point toward negative charges and point away from positive charges?
If relative position is the different between a wire and a magnet, what happens?
What is an induced current?