Font size
WorksheetsMagnetism
Total questions: 18
Worksheet time: 10mins
What causes magnetism?
the sun
moving neutrons
moving charges
friction
Which of the following is NOT naturally magnetic?
iron
copper
nickel
cobalt
Which drawing is correct?
1
2
3
4
Where is the magnetic field strongest around a bar magnet?
in the middle
at the poles
same everywhere
where the field lines are far apart
How can a wire become magnetic?
point it north
add a resistor
heat it up
run a current through it
Which direction do the arrows point when representing the magnetic field around a magnet?
into N
out of S
into S
out of N
What is this?
electromagnet
permanent magnet
motor
generator
What does the direction of the pointing fingers mean in this picture?
the direction of the voltage
the rotation of the wire
the direction of the magnetic field
the direction of the current
How could you make a stronger electromagnet?
more coils of wire
add an iron core
more current in the wire
all three
one N and one S
both N
both S
each piece still has a N and S
What experiences a magnetic force in a magnetic field?
a charge
a moving object
a moving charged object
What experiences a magnetic force in a magnetic field?
a wire
a length of wire
a electrical current in wire
Is this material a magnet or just magnetic?
just magnetic
a magnet
both
neither
What device takes in mechanical energy and produces electricity?
motor
generator
electromagnet
battery
What are the microscopic regions of atoms with a commonly aligned magnetic field called?
micromagnets
amps
magnetic zones
magnetic domains
What type of energy goes into a motor?
thermal
radiant
mechanical
electrical
F = BIL If the current and magnetic field are doubled, the magnetic force on the wire
halves
remains the same
doubles
quadruples
F = qvB If the speed and charge double, what happens to the magnetic force?
halves
remains the same
doubles
quadruples
