Learning Target: Electricity is the flow of electrons through a closed circuit.
Describe the interactions (i.e., repel, attract) of like and unlike charges (i.e., magnetic, static electric, electrical)
1. Define a charge as a property of matter that is characterized as an absence or excess of electrons (negative charge) 2. Understand that like charges repel, or push away, from each other 3. Understand that unlike charges attract, or pull toward, each other
Diagram and identify a complete electric circuit by:
1. a voltage source (battery), 2. conductor-means of transfer (wires) 3. receiver (resistance bulbs, motors, fans, electrical device) 4. switch (to open/close circuits)
Observe and describe the evidence of energy being transferred in a closed series circuit (i.e., light is on)
Learning Target: There are multiple ways to change the amount of energy flowing through a circuit (number of receivers and energy sources, type of transfer materials, type of circuit)
Describe the effects of:
1. resistance (number of receivers), 2. amount of voltage (number of energy sources), 3. kind of transfer materials on the current being transferred through a circuit (e.g., brightness of light, speed of motor) · Define resistance as a property of material that determines how easily a charge can move through it · Define voltage as a measure of electrical potential o electrical potential:
· Define a conductor/resistor/insulator
Classify materials as conductors or insulators of electricity when placed within a circuit (e.g., wood, pencil lead, plastic, glass, aluminum foil, air, water)
Diagram and distinguish between complete series and parallel circuits
1. Identify a series circuit 2. Identify a parallel circuit
Identify advantages and disadvantages of series and parallel circuits
1. Series circuit – uses less wire (advantage), when one bulb goes out, all go out (disadvantage), when adding bulbs to the circuit, bulbs become dimmer (disadvantage) 2. Parallel circuit – bulbs have equal brightness (advantage), each bulb has its own path to voltage source so when one light goes out the others remain lit (advantage), use more wire (disadvantage)
Electricity is the flow of electrons through a closed circuit.
- Describe the interactions (i.e., repel, attract) of like and unlike charges (i.e., magnetic, static electric, electrical)
1. Define a charge as a property of matter that is characterized as an absence or excess of electrons (negative charge)2. Understand that like charges repel, or push away, from each other
3. Understand that unlike charges attract, or pull toward, each other
- Diagram and identify a complete electric circuit by:
1. a voltage source (battery),2. conductor-means of transfer (wires)
3. receiver (resistance bulbs, motors, fans, electrical device)
4. switch (to open/close circuits)
Learning Target:
There are multiple ways to change the amount of energy flowing through a circuit (number of receivers and energy sources, type of transfer materials, type of circuit)
- Describe the effects of:
1. resistance (number of receivers),2. amount of voltage (number of energy sources),
3. kind of transfer materials on the current being transferred through a circuit (e.g., brightness of light, speed of motor)
· Define resistance as a property of material that determines how easily a charge can move through it
· Define voltage as a measure of electrical potential
o electrical potential:
· Define a conductor/resistor/insulator
- Diagram and distinguish between complete series and parallel circuits
1. Identify a series circuit2. Identify a parallel circuit
- Identify advantages and disadvantages of series and parallel circuits
1. Series circuit – uses less wire (advantage), when one bulb goes out, all go out (disadvantage), when adding bulbs to the circuit, bulbs become dimmer (disadvantage)2. Parallel circuit – bulbs have equal brightness (advantage), each bulb has its own path to voltage source so when one light goes out the others remain lit (advantage), use more wire (disadvantage)