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WorksheetsElectromagnet
Total questions: 13
Worksheet time: 9mins
A (head of the nail) is the ___-pole because S-pole is attracted to it.
N-pole
S-pole
either is fine
not in the choices
B (end of the nail) is the ___-pole because N-pole is attracted to it.
N-pole
S-pole
either is fine
not in the choices
What will happen to the compass needles (はり) if the switch is turned OFF?
It will stay the same as above.
It will be back to its original position.
It is difficult to tell
not in the choices
What will happen to the compass needles if the battery is REVERSED?
It will not change.
It will be reversed.
It is difficult to tell
not in the choices
Match the pictures and the words below.
change in this way for electromagnet
change in this way for light bulb
1 Amperes or
1 アンペア
3 Amperes or
３アンペア
What can a Galvanometer tell you?
The direction of the electricity (clockwise or counterclockwise).
The strength of the electricity (1 Amperes, 2 Amperes...)
The direction and the strength of the electricity
not in the choices
Which is/are TRUE about the objects in the picture?
1. Both have an S-pole and an N-pole.
2. Both can attract iron paper clips.
1 and 2 are TRUE
not in the choices
Which is/are TRUE about the electromagnets ONLY?
1. The S-pole and the N-pole can be reversed.
2. The strength does not change.
1 and 2 are TRUE
not in the choices
What can we connect to a Galvanometer?
batteries only
switch, batteries, and devices like light bulbs, motors, and electromagnets
it is hard to tell
not in the choices
If the you need to control (not change) the number of batteries, how can you make the electromagnet stronger?
make more than 50 loops
switch the galvanometer to light bulb
remove the switch
remove the galvanometer
If the you need to control (not change) the number of loops, how can you make the electromagnet stronger?
add another battery
switch the galvanometer to light bulb
remove the switch
remove the galvanometer
To increase the strength of an electromagnet, you can add more (a) OR (b) . (Textbook experiments)
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Difficult but fun
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