Tuesday, Jan. 19th 1 Bell-ringer: Discuss “Take Me Away” lab Agenda: Bell-ringer Complete “Take Me Away” lab Bill Nye Video - Electricity Ask questions about data to determine the factors that affect the strength of electric and magnetic forces. (S.7.PS.8) Objective:

Wednesday, Jan. 20th 3 Bell-ringer: Discuss with your neighbor: 1.Why does your home have a circuit breaker or fuse box? Agenda: Bell-ringer Finish “Bill Nye Video” questions “Electrical Circuits” Notes Ask questions about data to determine the factors that affect the strength of electric and magnetic forces. (S.7.PS.8) Objective:

Write the following: Date: 1/20/16 Description: Electrical circuits Page #: 57 Conservation of Energy3911/12/15 11/18/15Temperature and Heat41/43 Transferring Thermal Energy11/20/1543/45 Using Heat45/4712/1/15 12/4/15Describing Motion47/49 12/8/15 Acceleration 51 Motion and Forces12/16/1553 1/6/16Newton’s Laws of Motion 55 1/20/1657Electrical circuits

Electrical Circuits Circuit Symbols Wire (conductor) Closed switch Open switch Light bulb Battery

Thursday, Jan. 21st 6 Bell-ringer: Get out notebooks and folders and open to your “Electrical circuits” notes. Agenda: Finish “Electrical circuits” notes Complete “Circuit Drawing Practice” worksheet QUIZ TOMORROW! Ask questions about data to determine the factors that affect the strength of electric and magnetic forces. (S.7.PS.8) Objective:

Series Circuit Current has only one loop to flow through. Examples: light bulbs, holiday lights Contains two or more branches for current to flow through. Examples: homes, automobiles Parallel Circuit Complex circuit: a circuit composed of both series and parallel circuits

Electrical energy enters your home at the circuit breaker or fuse box and branches out to appliances, wall sockets, and lights. Circuit breaker – small piece of metal that bends when it gets hot, opening circuit and stopping current flow Electric fuse – small piece of metal that melts if current becomes too high, opening circuit

Friday, Jan. 22nd 9 Bell-ringer: Study your “Electrical circuits” and your “Circuit Drawing Practice” for the quiz today. Agenda: Bell-ringer Quiz Finish “Magnetism and Electricity” notes Ask questions about data to determine the factors that affect the strength of electric and magnetic forces. (S.7.PS.8) Objective:

FRIDAY QUIZ! 1.What circuit has two or more branches for current to flow through? 2.What circuit has only one loop of current flowing through it? 3.Give an example of a series circuit. 4.Give an example of a parallel circuit. 5.Draw a parallel circuit with 2 light-bulbs, one battery, and an open switch that turns off one light bulb.

Write the following: Date: 1/22/16 Description: Magnetism and Electricity Page #: 59 Conservation of Energy3911/12/15 11/18/15Temperature and Heat41/43 Transferring Thermal Energy11/20/1543/45 Using Heat45/4712/1/15 12/4/15Describing Motion47/49 12/8/15 Acceleration 51 Motion and Forces12/16/1553 1/6/16Newton’s Laws of Motion 55 1/12/1657Electrical circuits 1/22/16Magnetism and Electricity59

Magnetism and Electricity ANSWER FROM SLIDE BEFORE: Electromagnet changes electrical energy to mechanical energy that vibrates parts of the speaker to produce sound. When electric current flows through a wire, a magnetic field forms around the wire. Wire Strength of magnetic field depends on the amount of current flowing in the wire.

Electromagnets– a temporary magnet made by wrapping a wire coil carrying a current around an iron core. – To increase strength of the magnetic field, add more turns to the wire coil (solenoid) or increase the current passing through the wire Electric motor – a device that changes electrical energy into mechanical energy – In a simple electric motor, an electromagnet rotates between the poles of a permanent magnet.

Direct and Alternating Current Direct Current (DC) – current that flows in only one direction through a wire. Example: a battery Alternating Current (AC) – reverses the direction of the current flow in regular patterns. Example: plugging a toaster into a wall outlet

Electromagnets– a temporary magnet made by wrapping a wire coil carrying a current around an iron core. – To increase strength of the magnetic field, add more turns to the wire coil (solenoid) or increase the current passing through the wire Electric motor – a device that changes electrical energy into mechanical energy – In a simple electric motor, an electromagnet rotates between the poles of a permanent magnet.

Direct and Alternating Current Direct Current (DC) – current that flows in only one direction through a wire. Example: a battery Alternating Current (AC) – reverses the direction of the current flow in regular patterns. Example: plugging a toaster into a wall outlet

“Make an Electromagnet” Lab Objective/Goal: To give a nail magnetic properties using electricity. *Having trouble? Check in your notebooks on how to make an electromagnet…* Materials: – Battery – Wire – Nail – Straight pins To turn in: 1.Write a hypothesis on the relationship of how many pins your electromagnet can pick up versus the number of wraps of wire around the nail. 2.“Your plan of attack”; the materials you chose and why, and how you set-up your electromagnet.