Transcript Standard EPS Shell Presentation

Physics A First Course
Electricity
Chapter 13
Electricity
Electric Circuits
 13.1
Electric Circuits
 13.2
Current and Voltage
 13.3
Resistance and Ohm's Law
13A Investigation: Electricity
Key Questions:
What is electricity?
How is electricity measured and
described?
What is a circuit?
*Students read text section 13.1
AFTER Investigation 13A
13A Investigation Topics
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Identify conductors and insulators.
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Measure voltage in a battery.
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Measure current in a circuit.
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Draw circuit diagrams.
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Investigate how a dimmer switch works.
Chapter 13.1 Objectives and Vocabulary
Explain how electrical energy
is supplied to devices in a
circuit.
 Use electrical symbols to
draw simple circuit diagrams.
 Distinguish between open and
closed circuits.
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electric current
electric circuit
circuit diagram
electrical symbols
resistor
closed circuit
open circuit
switch
Chapter 13.2 Objectives and Vocabulary
List the units used to measure
current and voltage.
 Describe how to measure current
and voltage in a circuit.
 Explain the function of a battery
in a circuit.
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ampere
voltage
volt
voltmeter
multimeter
battery
ammeter
13B Investigation: Resistance and Ohm's Law
Key Questions:
What is the relationship between
current, voltage and resistance?
How does a potentiometer work?
What is voltage drop and what
does it tell you about where the
electrical energy carried by the
current is going?
*Students read text section 13.3
AFTER Investigation 13B
13B Investigation Topics
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Measure resistance in a circuit.
 Use Ohm's law to identify the mystery resistor
in a circuit.
 Investigate how a potentiometer works.
 Investigate the relationship between voltage
drop across the potentiometer and voltage
drop across the bulb in a circuit.
Chapter 13.3 Objectives and Vocabulary
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Explain the relationships
between current, voltage and
resistance.
Use Ohm's law to calculate
current, resistance, or voltage.
Distinguish between
conductors and insulators.
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resistance
ohm
Ohm's law
conductor
insulator
semiconductor
potentiometer