CURRICULUM | SCIENCE | TECHNOLOGY | ENGINEERING | MATH
“Sometimes it is the people no one can imagine anything of, who do the things no one can imagine.” - Alan Turing
ELECTRICITY AND MAGNETISM
WHAT IS ELECTRICITY?
WARM-UP (6 MIN)
In your notebook, always include the date, the lesson title, and do the warm-up task associated to that date.
Task: In your notebook, provide a list of 12 ELECTRICITY POWERED items that you use. These items must use electricity to function.
WARM-UP DISCUSSION (5 MIN)
Here we discuss how electricity makes the items function. We'll pick 3 as a class. The goal is to have written down how one object gets functionality from electricity.
LAB: TURN ON A LIGHT (6 MIN)
Purpose: To gain insight on what makes a light bulb shine.
Materials: 9 Volt Battery and a small incandescent light bulb rated for 9-12 V.
Procedure:
STEP 1: Inspect the Light Bulb
Look closely at your light bulb; you should see a thin metal wire filament inside the glass. One end of this filament is connected to the metal side of the base, and the other end is connected to the metal contact on the bottom.
STEP 2: Connect the Light Bulb to the Battery
Place your 9 V battery upright on the table. Take the light bulb and gently place it so that the bottom touches one battery terminal and the metal side touches the other battery terminal. When both the bottom and the side are touching the battery, the bulb should light up.
You just generated electricity from the chemicals in a battery! The bulb lights because when you touch it to the battery contacts, electricity runs through the wire filament inside. The filament then heats and starts to glow, creating light.
STEP 3: Draw your experiment in the notebook. Include all materials labeled.
THE NOTES: HOW DOES ELECTRICITY LIGHT A BULB? (7 MIN)
There are the concepts that combine to light up a bulb. INCLUDE THESE IN YOUR NOTEBOOKS
1. Electrons - Negatively charged particles in the orbitals of an atom.
2. Current - The amount of electrons flowing through a circuit. Measured in Amperes (A)
3. Voltage - The push of electrons through a circuit. Measured in Volts (V)
4. Resistance - The restriction of current flowing through a circuit.
5. Conductive - Electrons will flow easily through it when energy is applied.
6. Electricity - a form of energy resulting from the existence of charged particles (such as electrons), either statically as an accumulation of charge or dynamically as a current.
These fundamental concepts of electricity all depend on each other, and we'll explore them in this section.
MUSICAL DRAWINGS (12 MIN)
Get out your musical drawing packets and get ready for visual explanation of these concepts. We'll wrap it up here to prepare you for today's assessment in your learning management system.