WorksheetsElectromagnets
Total questions: 10
Worksheet time: 3hrs 30mins
Refrigerator magnets and bar magnets are what type of magnet?
electromagnet
electronic
permanent
Arrows are close together on a force field when the force is
stronger
weaker
opposite
Electric currents produce _____________
electron clouds
magnetic fields
sound waves
When _______________ travels through a
conductor, a magnetic field is created
current
a magnetic field
neutrons
How can the strength of an electromagnet be increased? (mark all that apply)
increase the current flowing through the coil
increase the number of coils
add an amplifier to it
put iron core inside the coil
A compass needle points north because of Earth's magnetic field unless
it is close to a wire with a current
it is close to any wire
it is close to a battery
How can you test to see if there is a current running through a wire?
listen carefully to see if you hear a buzzing sound
place several compasses around the wire
place several batteries around the wire
