Electromagnets

Electromagnets- Hands ON!
Page 18
You will need the materials shown including a small screwdriver, batteries (from your kit science kit):

Class announcement page

• Batteries from your CCA kit

• Screw driver from the microscope kit

• Battery pack from the electricity and magnetisim kit

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Batteries in the battery pack!

1. Use the screw driver to open the battery back

2. Put the batteries in + to + and - to -

3. Close the battery pack using the screw driver

1. Connect battery pack to connectors

2. Connect horse shoe to battery pack using wires and connectors

3. Add metal pieces in the middle

4. Observe

5. Coil the wire around a metal object

6. Repeat with plastic disks

​Electromagnet: Page 54 little green book

​Electromagnets- an object that acts as a magnet when electricity passes through it

Solenoid- Copper wire wrapped around the metal core

​Can be turned on and off

Match Table Grid

What do you observe? Add details to the chat or on the microphone.

How did coiling the wire change your result? (Answers may vary from what I have )

strong attraction

weak attraction

repulsion

metal pieces

plastic pieces

Other

Add coils to electromagnet

Drag and Drop

Solenoids with​

Placeholder

coils will produce more​

Placeholder

.

Solenoids with ​

Placeholder

coils or no ​

Placeholder

will decrease the amount of magnetic force.

Drag these tiles and drop them in the correct blank above

more

magnetic force

less

iron core

Match

Match the following

Electromagnet

Magnet

Magnetic Field

Atom

• Electromagnet

• Magnet

• Magnetic Field

• Atom

1. Set the electromagnet so one side of the electromagnet is touching the middle part of the pendulum base.

2. Observe the hanging magnet which color is facing the electromagnet?

3. Move the electromagnet away from the hanging magnet until the pendulum is still

4. Place the OTHER side of the electromagnet so it is touching the middle part of the pendulum base.

5. What color is attracted to the electromagnet?

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​Polarity Tester: Page 56

Draw

Write or draw your observations here and in your notes!

This page will appear again (blank) for the next 2 experiments, so use all the space you need.

1. Disconnect the push button and connect the battery box to the wires.

2. Place the electromagnet under the hanging magnet of the pendulum.

3. Note the color of the hanging magnet that is closest to you.

4. Unplug the wires from the yellow box

5. At the battery, reverse the connections- the wires should now be plugged into the opposite sides.

6. Observe

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​Switching Poles: page 56

Draw

Write or draw your observations here and in your notes!

This page will appear again (blank) for the next 2 experiments, so use all the space you need.

​Place the pendulum and electromagnet a few centimeters apart. It should be close enough that the electromagnet's force field is interacting with the hanging magnet.

1. Place the objects you have found between the pendulum and the electromagnet.

2. Observe

3. Try different objects and see how the interaction of electromagnet and pendulum is affected.

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Obstruction: page 57

Open Ended

What observations did you make from the final experiment?

What other objects did you use to block the magnetic field?

Were you successful?

Draw

Electromagnets are electricity and magnets combined. Let's compare and contrast these forces:

Label 1 circle with "Electricity"

Write something that is unique to electricity here.

Label the other circle with "Magnetism"

Write something that is unique to magnetism here.

Where the two circles touch write anything the two have in common.

Observe how electricity can affect the magnetic pendulum.

1. Clip one alligator clip to one of the metal battery box terminals.

2. Run the wire under the magnetic pendulum.

3. Touch the second alligator clip to the other metal battery box terminal for one or two seconds.

4. Observe the movement of the magnetic pendulum.

​​Electromagnets-
straight and coiled wires

Want to explore more? Check out these next experiments!

​Now, perform the second exploration by following this procedure.

1. Attach one of the alligator clips to the metal battery terminal.

2. Hold the coil of wire near the pendulum.

3. Touch the second alligator clip to the other battery terminal for one or two seconds.

1. Screw one bolt halfway onto the hex nut.

2. Screw the second bolt into the other side of the hex nut.

3. Create a solenoid by using clear tape to secure the iron core in the center of the coiled wire.

   Testing:

4. Attach one of the alligator clips to the metal battery terminal.

5. Hold the solenoid near the pendulum.

6. Touch the second alligator clip to the other battery terminal for one or two seconds.

Solinoid

Create an iron core

Poll

Is Oxygen magnetic?

• Yes

• No

• Will explain in chat

Go to Edio page 1

Watch the video "Oxygen is Magnetic !?" together

Discuss what happens in the video 2 Minutes in the break-out room

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Magnetic Oxygen