Aluminum Wrap Railway

テキストボックス: Why does the straw wrapped with aluminum wrap above the magnet moved when wires are connected to the battery? When you connect the wires into the battery, you let electric charges to flow from the wire to the aluminum wrap (aluminum is a conductor of electricity) therefore produces electricity. When electric current is flowing a small magnetic field is produced in the wire and aluminum wrap. A round magnet as we know has a magnetic field. Therefore, the straw moved above the magnet because its small magnetic field from electric current repel on the magnetic field of the round magnet.

Taking it further:

1. Challenge the students to explain the activity using the right-hand rule or left-hand rule (learn in electromagnetism).

2. Let the students try additional two or more round magnet in the railway.

3. Ask the students to try a bar magnet.

4. Ask the students if Magnetic Levitation (Maglev) Train is related to the activity. Let them explain further and research on it.

· Aluminum wrap

· 3 pieces drinking straw

· Sticky tape

· Round magnet (Refrigerator magnet will do)

· connecting wire with alligator clip

· 2 pieces 1.5 Volt Battery

· Battery holder (optional)

· Glue (optional)

PROCEDURE:

2. Place one of the wrapped straws above the wood and secure with sticky tape.

3. Place the round magnet about 1mm from the straw and then placed the other straw on the other side of the magnet with the same distance from the magnet and parallel to the first straw.

1. Wrap aluminum foil in the straw using sticky tape or glue to seal.

4. Get the remaining straw. Cut the part without aluminum foil and place it across the two straws and above the middle of the round magnet (see photo).

5. Connect the alligator clip on one end of aluminum foil in each straw that are parallel to each other.

6. Connect the other end of the alligator clips on the positive and negative terminal of the battery. Observe what happen to the straw above the magnet.

7. If your experiment is well done, the straw above the magnet will move. Try reversing the battery; observe the direction of the movement of the straw this time.

テキストボックス: EXPERIMENT LISTS PHYSICS Balancing a Dragonfly Does Air Takes Up Space? Improvised Battery (Option 1) Improvised Battery (Option 2) Improvised Battery (Option 3) Tornado in the Bottle Diver Surface Tension and Air Pressure Aluminum Wrap Railway Light to Sound Magnetic field in 3D Simple Kaleidoscope Art in Polarizer Simple Spectroscope Electrostatic Motor Paper Earphone CHEMISTRY Vegetable/Fruit Charcoal Red Cabbage Extract (Identifying Acidity of a Liquid) Alkalinity of a Liquid Crayon Making Hand Printing using Soap Testing Raindrop Acidity using Red Sweet Potato Powder Magic! (Water doesn’t fall?) BIOLOGY 1. Leaves Puzzle ACTIVITIES Fossil Hunting Gold Sieving Smelting Steel Observing Classes Attending Trainings

テキストボックス: VOCABULARY Electric current— flow of electric charge through a medium. (http://en.wikipedia.org) Magnetic Field—A region around a magnetic material or a moving electric charge within which the force of magnetism acts. (Wikipedia-Dictionary.com)