Maglet, Wirelee, Bulby and their friends learn about electromagnetic induction through experiments using a magnet, wire, and galvanometer. They discover that moving a magnet over a wire induces electricity in the wire, and the faster the magnet moves the greater the induced current. With help from their fathers Mr. Bigmag and Mr. Wirehuge, they are able to produce enough induced current to light Bulby's bulb.
2. While walking on the road to Magnetism
Hi Bulby! What’s that
sad face all about?
Naaa…I just want to
light, but I don’t feel any
electricity here..
That means you need me. But
I don’t feel any movement of
my electrons either. Let’s walk
a little farther.
Hmmm..
Ok..
1
4
3
2
3. Did you hear that? Let’s follow them to discover these:
1. Definemagnetism.
2. Describewhatis/are theeffectsofmagnetism ona body.
3. Explainthe conditionor itscombinationwouldresulttothe
smallestgeneratedelectric current?greatestcurrent?nocurrent
reading.
4. Hi guys! What’s
new for today?
Hey Maglet!
I want to feel my
electrons moving and to
help this little guy here to
light.Ohh..I see.. Let’s drink coffee
while talking about that
matter.
Yeah.. that’s a
better idea.
Are you thinking what I’m
thinking?
Come on! Let’s follow
them..1
2
3
4
5. Shocked!
Maglet, I feel something.
Can you please hop
again?
Sure! ( Maglet hopping
through Wirelee again.)
Maglet serving coffee hopping through Wirelee..
2
1
At this time, you can start doing the activity
using your materials
6. See! It moves
again. Can you
please stay there
for a while?
Of
course..
These guys
are trying to
fool each
other. Haays..
2
1
7. Ooh.. I don’t feel
anything.
Then, it’s false alarm, I
gotta go then.
Maglet staying on Wirelee.
Maglet walking over Wirelee
1
2
8. Maglet needs to move over you so
that your electrons will move. I am so
happy! That’s what I need to turn my
bulb on! Uhmmm, can I try it?
Wait! I can feel my electrons
are moving again. Just keep
on walking over me Maglet.
Of course Bulby! Come
and hold my hands.
Whoa!!
2
1
3
9. Come on Maglet,
take a move!
Here I go!!
Bulby holding the hands of Wirelee…
Maglet moving over Wirelee while singing You light up my life, You
bring me hope..to carry on..
It’s more
comfortable
here.. In
fairness..
2
1
10. Oooh.. My bulb is
not lighting.. Maybe
I am already
busted..
Look! Prof. Galvan O.
Meter arrived! Let’s
ask his help.
Hi Professor!
Can we ask
a favor?
1
2
4
12. Yes Professor!
Ok professor!
After Maglet have discussed everything to Mr. Galvan O. Meter.
Repeat what happened
earlier, so that I can relate it
to you if there is really a
movement of electron.
2
3
1
My dear students, can you follow? Is it
13. Oh! My needle
deflects. Meaning
there’s a motion of
electrons.
Because the
electricity
produced was
too low.
But why does my bulb
didn’t light Professor?
So what
are we
going to
do now?
You have to move
faster Maglet to
produced a higher
amount of energy
The faster, the
greater..uhmmm.
2
1
3
4
5
14. Look! My needle continues to
deflect, the amount of energy
becomes higher.
Maglet moves faster and faster over Wirelee.
I am hoping that it
would help..
Meaning, the faster I
move, the higher the
amount of electricity
will be induced.
2
1
3
a. When Maglet didn’t move,
there is no induction of
electricity.
b. b. The faster Maglet moves,
the higher amount of induced
electricity
15. Mr. Bigmag, the father of Maglet and Mr. Wirehuge, the father of Wirelee arrived.
Well then,
we will
help you.
Thanks Father!
Come and take
our place.
2
1
3
Father!
We’re trying to induced
electricity so that Bulby
will light.
16. Mr. Bigmag, the father of Maglet and Mr. Wirehuge, the father of Wirelee arrived.
Well then,
we will
help you.
Thanks Father!
Come and take
our place.
2
1
3
Father!
We’re trying to induced
electricity so that Bulby
will light.
17. Mr. Bigmag was hopping over Mr. Wirehuge.
Professor, I’m
so excited to
try it!
Whoaa!! The
movement of my
electrons was
great!
And my needle
deflects more!
Come Bulby,
try it. Let’s
see if your
bulb will
light.
2
1
3
4
What does this mean?
a. Well, the bigger the magnet,
the higher the amount of
induced current.
b. The greater the loop of the
wire, the higher the amount of
induced current.
18. The happiest moment of Bulby.
Wow!! As in W-O-W!!
They made it. Changing
magnetic field can
induce electricity.
Uuhhlala!! I’m lighting! This is
really great! Thank you so much
my dear friends. Thank you for the
help Professor and Mr. Bigmag
and Mr. Wirehuge.
Then they went home.
No problem Bulby, untill
next time..
3
1
2
You’re always
welcome Bulby!
19. That was so amazing right? Whoaaw!! I just can’t help
myself to share to you guys what I have just learned,
uhmmm.. and witnessed..haha!
Inorder for electric currentto begenerated, a magnetand wire should
bepresent.
If one of them move, or let’s just say if the magnetwill move, wire will
experienceda changing magnetic field. Thus,electricity will be
generated.
Theamountof electricity being generated depends on:
how fast the motion is. Thefaster the movement, the higher
amountof electricity will beinduced, theslower the movement,
the lesser amount of electricity will beinduced.
Thesize of the magnet. Thebigger the magnet, the stronger the
magnetic field, the higheramountof electricity will be induce.
Thesmaller the magnet, the lesser amount of electricity will be
induced.
Thenumberof loops of wire. Moreloops of wiregives a
stronger electricity while lesser loops gives a lesser amount of
induced current.
20. Direction: Write the word Bulby if there is an induced
electricity and busted if there is no induced electricity in the
following situations.
1. Magnet and wire are near to each other.
2. Magnet was continuously rotating.
3. Magnet was continuously moving slow over the wire.
4. Magnet was continuously moving fast over the wire.
5. Magnet was placed under the wire and left on the table.
Answers:
1. ___________________
2. ___________________
3. ___________________
4. ___________________
5. ___________________
21. Direction: Put a needle ( ) on the galvanometer to represent
the letter of your answer.
1. A big magnet was placed and starts to rotate faster and
faster over a wire.
2. The big magnet that is moving so fast over a wire starts
to decrease its speed.
3. The big magnet placed on top of the wire was not
not moving at all.
4. Instead of magnet, the wire is the one who’s from rest,
starts to move slowly.
5. A long and thick wire was place on top on the table near
a huge magnet.
A. No induced current
B. Low amount of generated current
C. Increasing, from low to high amount of generated current
D. Decreasing, from high to low amount of generated current
E. High amount of generated current
22. Assessment Card # 1
Direction: Complete the story by drawing and writing (in words) what is missing.
Here are your choices, a magnet , , a wire , a bulb with light , and a
bulb without light .
One day, Xailee and Xander was doing their project in Science. They
were assigned to light a small bulb using a magnet and a wire. Xailee made the first
trial by putting a tiny 1___________ over a wire. Upon observation, they noticed
that nothing happens to the 2___________ because it didn’t light. Then, Xander
decided to interchange the position of the 3___________ and the magnet. Still,
nothing happens, the 4___________ didn’t light again. Upon asking their mother,
who happened to be a Science teacher, they move the 5___________ to and fro
over the wire continuously. They notice that there is a little spark on the
6___________. They have decided to use a bigger magnet to move over the
7___________. Xailee and Xander noticed that as they moved the magnet faster,
the light of the 8___________ becomes brighter. Then, they realized the factors
that affect production of current through the used of a magnet and a wire.
23. Assessment Card # 2
Direction: Complete the following sentences. Choose from the letters below.
1. I have to prepare a conductor (wire), a magnet, and a galvanometer in demonstrating
_________________________________________________________________ .
a. a series or parallel circuit
b. electromagnetic induction
2. The speed of moving the magnet into or out of a wire will determine the
_______________________________________________________________________________
_ .
a. amount of induced current
b. the velocity of flow of charges
3. The size of the magnet also affects the
_______________________________________________________________________________
_ .
a. amount of induced current
b. the velocity of flow of charges
4. The galvanometer’s needle will continue to deflect if
_______________________________________________________________________________
___________ .
a. the temperature increases
b. the speed of the changing magnetic field and/or the size of magnet and/or wire
increase
5. Electromagnetic induction is a process where
_______________________________________________________________________________
___________.
24. Direction: After doing the activity, feel free to underline on the
possible answer from the choices made to fit on your observations.
Procedure:
1. Take a coil of wire having many turns.
2. Connect it to a sensitive galvanometer.
3. Take a bar magnet and move the north pole of the
magnet towards the coil.
4. Now move the north pole of the magnet away from the coil.
5. Repeat procedures 3 and 4, but this time, use South Pole
instead of North Pole.
Electromagnetic Induction
YOUR OBSERVATIONS:
a. Similar effect will be observed if we use the south pole of
the magnet in the above activity. But the direction of deflection
will be (reversed, the same).
b. (Similar, No) effect will be observed if we keep the magnet
stationary and move the coil towards or away from the coil.
c. When the coil and the magnet are both stationary, there is (no
deflection, large deflection) in the galvanometer.
YOUR CONCLUSION:
Thus whenever there is a relative motion between the coil and
the magnet, it (induces, reduces) a current in the coil.
25. Making Your Own Electric Motor (Science 10 Module pages 115-117)
(Adapted from http://www.instructables.com/id/How-to-Make-aHomopolar
Objectives: Materials:
Build a simple electric motor Battery/batteries magnets
Explain the operation of a simple electric motor pliers wire
Precaution: Wires can get hot when connected to the battery for a long time. Open the
circuit once you are done with your observations.
Procedures:
1.With the use of pliers, shape a wire into your
desired shape like circle, heart, etc.
2. Make a simple pile of the magnet, the battery and
the shaped copper wire. (refer to the figure below)
3. Test your motor by mounting the shaped wire with
its pivot part as a rotating point, over the positive
terminal of the battery. Check that the bottom ends
of the wire curl loosely around the magnets forming a
closed circuit.
4. Observe and record what happens to the shaped
wire.
5. If your DC motor does not work, stretch your
tolerance, abilities and Knowledge.
26. Guide Questions:
1. What happens to the shaped wire once positioned over the battery’s positive
terminal and with both wire ends curled loosely touching the magnets?
_________________________________________________________________________
_________________________________________________________________________
2. What other observations have you made regarding your electric motor?
_________________________________________________________________________
_________________________________________________________________________
3. What will happen if the number of magnets used in the model is reduced? Increased?
_________________________________________________________________________
_________________________________________________________________________
4. What are the basic parts/elements of a simple
electric motor?
___________________________________________
___________________________________________
___________________________________________
5. Based on the activity, how will you explain the
operation of a simple electric motor?
___________________________________________
___________________________________________
___________________________________________
27. Answer
CardLet’s check if you got it..
Right
Or almost there..
Activity Card # 1
1. Busted
2. Busted
3. Bulby
4. Bulby
5. busted
Activity Card # 2
1. 4.
2. 5.
3.
28. 1. Magnet
2. Bulb without light
3. Wire
4. Bulb without light
5. Magnet
6. Bulb with light
7. Wire
8. Bulb with light
1. electromagnetic induction
2. amount of induced current
3.amount of induced current
4. the speed of the changing magnetic field
and/or the size of magnet and/or wire
increase
5. is the process in which electric current is
generated in a conductor by moving or
changing magnetic field.
29. Enrichment Card #1 Enrichment Card #2
1. You will observe that galvanometer
now give a deflection in opposite
direction.
**Similar effect will be observed if
we use the south pole of the magnet
in the above activity. But the
direction of deflection will be
reversed.
**Similar effect will be observed if
we keep the magnet stationary and
move the coil towards or away from
the coil.
**When the coil and the magnet are
both stationary, there is no
deflection in the galvanometer.
**Thus whenever there is a relative
motion between the coil and the
magnet, it induces a current in the
coil.
1. Current flows through the wire
which starts to move, slowly at
first, and then rotating faster.
2. Answers may vary
3. Decreasing number of magnets will
take a longer time for a current
carrying wire to rotate at a slower
rate (or not at all).
4. The basic parts/elements of
electric motor are the following:
moving charges in a conductor within
the influence or region of a magnetic
field.
5. An electric motor is simply a
device that uses electrical energy to
do rotational mechanical work.
30. I want to learn more about electromagnetic
Induction…
I should find another evidence…
physics.about.com/od/physicsetoh/g/inducti
on.htm
https://en.wikipedia.org/wiki/Electromagneti
c_induction
www.fyzikalni-
experimenty.cz/en/electromagnetism
Paul G.H., Conceptual Physics Eight Edition.
Addison – Wesley Longman
Ernest P.M., Rhonalyn L.V. (2001).
Physics.Phil.JO-ES Publishing House
Department of Education (2015)
Science 10 Learners Material, First Edition
31. Gusto ko pang lumawak ang kaalaman ko tungkol
sa electromagnetic Induction…
Kailangang makakuha pa ako ng iba pang datos
at impormasyon..
physics.about.com/od/physicsetoh/g/inducti
on.htm
https://en.wikipedia.org/wiki/Electromagneti
c_induction
www.fyzikalni-
experimenty.cz/en/electromagnetism
Paul G.H., Conceptual Physics Eight Edition.
Addison – Wesley Longman
Ernest P.M., Rhonalyn L.V. (2001).
Physics.Phil.JO-ES Publishing House
Department of Education (2015)
Science 10 Learners Material, First Edition
