Jean Ladendorf

Table of Contents Magnetism and Electricity Table of Contents Science Standard Static Electricity Components of Static

Electricity Atom Basics of Static Electricity Electric Currents Current Does It Conduct? Conductivity Table

Magnets Bar Magnets vs.

Electromagnets Pie Chart Magnets Bar Graph Magnets Show What You Know Task 1 Task 2 Task 3 Task 4

S5P3 Students will investigate electricity, magnetism and their relationship.

Static Electricity Electric Circuits

Conductors & Insulators

Bar Magnets & Electromagnets

Basics of Static Electricity

Repulsion

Attraction

Causes

Force Fields

Surface Charges

Electrons pulled

from orbit

Static Electri

city

Static Electricity

You walk across the carpet, reach for the doorknob and …… ZAP!!!!! You get a shock.

What is going on here?

As you walk across the carpet, electrons move from the carpet to you.

Now, you have extra electrons. When you touch the doorknob, you get

a ZAP! The electrons move from you to the

knob and you feel the shock.

Static ElectricityStatic Electricity

Atoms

Protons Electrons Neutrons

Positive (+) charge Negative (-) charge No charge

To go back to Basics of static electricity click here

Electric Circuits

An electric circuit is a path around which electricity can travel. There must be a source of electricity, and an unbroken path from one side of the source to the other.

Current

The flow of electrical charges.

Does it Conduct?

Conductor – A substances that allow electricity to flow through it.

Insulator – A substance that does not allow electricity to flow through it.

Conductivity Table

Conductors Insulators

Paper Clip Rubber

Copper Wire Chalk

Water Marble

Trees Cotton

Magnets

A magnet is an object that can push or pick up materials made of iron, steel, or nickel.

Every magnet has two places where its strength is concentrated, a north and south pole.

A magnet that is free to turn will come to rest with its poles aligned in a north-south direction.

Unlike poles of a magnet attract each other. Like poles of a magnet repel each other.

A magnet can be made from a steel object by striking it with a magnet.

Once magnetized, a piece of steel can remain magnetized indefinitely.

A magnetic compass works because the earth itself is a magnet: the compass magnet interacts with the earth-magnet.

Bar Magnets vs. Electromagnets

Bar Magnets

Devices in the shape of a bar with magnetic poles at each end that attract iron and produce a magnetic field.

Electromagnets

Metals that become magnetic when a coil of wire with a electric current is wrapped around it.

Magnets in Our Classroom

% of Each Type of Magnet

35%

10%15%

40%Bar

Horseshoe

Ring

Disk

Our Electromagnet Investigation

12

5

7

9

0

2

4

6

8

10

1 2 3 4 5

Number of Batteries

Nu

mb

er

of

Pa

pe

r C

lips

Pic

ke

d U

p

Show What You Know

Choose one of the following performance tasks.

If you choose to perform either of the tasks which require you to light a light bulb, be sure to show your project to the teacher while the bulb is lit.

Performance Task 1

You’re Nuts!

Using styrofoam packing peanuts and a piece of wool, devise a plan to attach the packing peanuts to the wall in the shape of your name.

Performance Task 2 Light Up! Light Up!

Build a closed circuit using at least 1 battery, 1 switch and 1 light bulb.

Performance Task 3

Light Up Again!

Build a closed circuit using at least 1 battery, 1 switch and 1 light bulb using Challenge 1 on this website.

http://www.schoolscience.co.uk/content/3/physics/circuits/circh3pg1.htmll

Performance Task 4 Magnet Movie!

Cut a scene from construction paper and glue it to the inside of a shoe box. You could make a seashore, a desert – anything goes!

Draw and cut out 2 objects that can move around in your scene.

Devise a plan to use magnets to move your objects around in the scene that you created.