Circuits

Circuits Packet Answer Key

Main goal:

Be able to describe how voltage, current and resistance are related. (7.1)

Class Agenda:

1. Can you light a lightbulb?
   • Describe how it is possible to light a lightbulb with the materials that you are given
2. Brainstorm how a basic circuit operates
   • Groups report out on ideas of how circuits operate
3. Understand the and be able to describe the basics of voltage, current and resistance as they relate to electrical circuits
   • Class discussion on basic circuit requirements
   • Students provide analogies for how circuits operate

Homework:

1. Read lessons 2a, 2b, and 2c on current electricity from physics classroom
2. Quiz next class on class information and current electricity readings

Main goal:

Be able to determine the mathematical relationship between voltage, current and resistance. (7.3)

Class Agenda:

1. Review the qualitative relationship between voltage, current and resistance.
2. Learn how to use a multimeter
3. Perform Ohm's Law Investigation (Lab Document)
4. Discuss the quantitative relationship between resistance, current, and voltage.

Homework:

1. Complete "Ohm's Law Investigation"

Main goal:

Determine how to calculate equivalent (total) resistance in series and parallel circuits. (7.6)

Class Agenda:

1. Discuss the mathematical relationship between voltage, current and resistance
2. Introduction to series and parallel circuit diagrams (schematics)
3. Review multimeter use
4. Equivalent resistance lab (Lab Document)

Homework:

1. Complete "Equivalent Resistance" Lab

Main goal:

Calculate voltage, current and resistance in series and parallel circuits. (7.6)

Class Agenda:

1. Self-assess understanding of Ohm's law and discuss (pg. 3)
2. Discuss how total resistance, current and voltage behave in series and parallel circuits
3. Discuss how total voltage, current and resistance are calculated in series and parallel circuits.
4. Practice solving problems using series and parallel circuit rules. (pgs. 6 & 9)

Homework:

1. Complete "Circuit Construction Virtual Lab" (pgs. 4-5)
2. Complete classwork (pgs. 3, 6, 9)

Main goal:

Calculate voltage, current and resistance in series and parallel circuits. (7.6)

Class Agenda:

1. Review behavior of voltage, current and resistance in series and parallel circuits. (pgs. 8 & 11)
2. Conduct "Being an Electrician" lab

Homework:

1. Complete pgs. 8 & 11

Main goal:

Calculate voltage, current and resistance in combination/compound circuits. (7.6)

Class Agenda:

1. Review series and parallel circuit calculations (pgs. 8 & 11)
2. Complete "Being an Electrician" lab
3. Discuss combination circuits
4. Practice combination circuit calculations using "Being an Electrician" lab

Homework:

1. Complete series and parallel circuits practice (pg. 12)

Main goal:

Be able to calculate power dissipation in series, parallel or combination circuits.

Class Agenda:

1. Review circuit types (pg. 12)
2. Analyze and discuss series and parallel circuit concepts using holiday lights (reading)
3. Discuss how power requirements are calculated for circuits
4. Practice calculating power dissipation in circuits. (pg. 14)

Homework:

1. Complete holiday lights reading
2. Complete power dissipation practice problems (pg. 14)

Main goal:

TBA

Class Agenda:

1. TBA

Homework:

1. TBA

Main goal:

Be able to demonstrate your working knowledge of circuits and current electricity.

Class Agenda:

1. Brief review of circuits
2. Circuit Exam

Homework:

1. Begin sound unit readings

Main goal:

Be able to create a complex circuit and explain how various circuit components operate.

Class Agenda:

1. Fourth quarter goal setting
2. Brief review of circuit components
3. Perform the "Circuit Components Investigation" using snap circuits

Homework:

1. Complete "Circuit Components Investigation"