ACTIVITIES ON ELECTRICITY AND

MAGNETISM

KRISTINE D. PABICOSST – III

Lucena City National High School

Materials: Bar Magnets Iron Fillings

U – shaped Magnets Paper and Marker

Procedures:1. Place the magnets as shown below:2. Pour Iron fillings around the magnet.3. Gently tap the table until a clear pattern is formed. 4. Draw your Observations.

ACTIVITY 1 – MAGNETIC FIELD MAPPING

1. Compare the magnetic field patterns for different set ups.

2. What do the magnetic field patterns, indicate about the strength of the magnets?

3. What can you say about the magnetic field of a magnet?

PROCESSING – activity 1

ACTIVITY 2 – CURRENT CARRYING WIRE

Materials: Dry Cells Magnetic Compass

6 in Solid Wire #14Connecting WiresProcedures:1. Connect the dry cells and the solid wire with the connecting wires2. Move the magnetic compass around the solid wire, observe the deflection of the compass needle. Illustrate your observations.3. Reverse the terminals of the dry cells, observe the deflection of the compass needle. Illustrate your observations.

Materials: Dry Cells Magnetic Compass 24 in Stranded wire Connecting

Wires Procedures: 1. Loop around the stranded wire in the magnetic

compass. 2. Connecty it with the dry cells using the connecting

wires, observe the deflection of the compass needle. Illustrate your observations.

3. Reverse the terminals of the dry cells, observe the deflection of the compass needle. Illustrate your observations.

ACTIVITY 3 – CURRENT CARRYING COIL

PROCESSING – activity 2 and 3

1. Where is the direction of the current in the wire? The magnetic field?

2. What happens to the compass needle as you reverse the terminals of the dry cells?

Materials: Dry Cells U-shaped magnets6 in Solid wire #20 Connecting

Wires Procedures:

1. Make a stand that will hold the 6 in Solid wire like a swing.

2. Connect it with the dry cells using the connecting wires.

3. Place the u-shaped magnet and observe how the solid wire moves.

4. Reverse the terminals of the dry cells. Illustrate your observations.

ACTIVITY 4 – ELECTROMAGNETIC SWING

Materials: Dry Cells U-shaped magnets

Copper wire strands Connecting Wires Procedures:

1. Make a stand that will hold your motor so that it can freely rotate.

2. Connect it with the dry cells using the connecting wires.

3. Place the u-shaped magnet and observe the rate and the direction of its rotation.

4. Reverse the terminals of the dry cells. Illustrate your observations.

ACTIVITY 5 – ELECTRIC MOTOR

1. Why did the solid wire swing? And the electric motor rotate?

2. What do you think will happen when we increase the loops of your electric motor model? If we add stronger magnets?

PROCESSING – activity 4 & 5

Performance – task - students will be evaluated based on

their outputs (electric motor and em swing)

- Rubrics is required

APPLICATION

If there is a relationship that exists between electricity and magnetism, can electricity be produced just by the presence of magnets and conductors?

CLOSURE