PES Skill Sheets.book - Capital High School

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Name: Date: 16.4 Parallel Circuits A parallel circuit has at least one point where the circuit divides, creating more than one path for current. Each path is called a branch. The current through a branch is called branch current. If current flows into a branch in a circuit, the same amount of current must flow out again. This rule is known as Kirchoff’s current law. Because each branch in a parallel circuit has its own path to the battery, the voltage across each branch is equal to the battery’s voltage. If you know the resistance and voltage of a branch you can calculate the current with Ohm’s Law (I = V/R). 1. Use the parallel circuit pictured right to answer questions (a)–(d). a. What is the voltage across each bulb? b. What is the current in each branch? c. What is the total current provided by the battery? d. Use the total current and the total voltage to calculate the total resistance of the circuit. 2. Use the parallel circuit pictured right to answer questions (a)–(d). a. What is the voltage across each bulb? b. What is the current in each branch? c. What is the total current provided by the battery? d. Use the total current and the total voltage to calculate the total resistance of the circuit. 3. Use the parallel circuit pictured right to answer questions (a)–(d). a. What is the voltage across each resistor? b. What is the current in each branch? c. What is the total current provided by the batteries? d. Use the total current and the total voltage to calculate the total resistance of the circuit. 4. Use the parallel circuit pictured right to answer questions (a)–(c). a. What is the voltage across each resistor? b. What is the current in each branch? c. What is the total current provided by the battery? 16.4
Page 2 of 2 In part (d) of problems 1, 2, and 3, you calculated the total resistance of each circuit. This required you to first find the current in each branch. Then you found the total current and used Ohm’s law to calculate the total resistance. Another way to find the total resistance of two parallel resistors is to use the formula shown below. Calculate the total resistance of a circuit containing two 6 ohm resistors. Given The circuit contains two 6 Ω resistors in parallel. Looking for The total resistance of the circuit. Relationships R total 1. Calculate the total resistance of a circuit containing each of the following combinations of resistors. a. Two 8 Ω resistors in parallel b. Two 12 Ω resistors in parallel c. A 4 Ω resistor and an 8 Ω resistor in parallel d. A 12 Ω resistor and a 3 Ω resistor in parallel 2. To find the total resistance of three resistors A, B, and C in parallel, first use the formula to find the total of resistors A and B. Then use the formula again to combine resistor C with the total of A and B. Use this method to find the total resistance of a circuit containing each of the following combinations of resistors. a. Three 8 Ω resistors in parallel = R × R R + R 1 2 1 2 total b. Two 6 Ω resistors and a 2 Ω resistor in parallel c. A 1 Ω, a 2 Ω, and a 3 Ω resistor in parallel R = R × R R + R 1 2 1 2 Solution R R total total 6 Ω× 6 Ω = 6 Ω+ 6 Ω = 3 Ω The total resistance is 3 ohms. 16.4
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Chapter and Section Chapter 1: Meas
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Chapter and Section Chapter 5: Forc
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Chapter and Section Chapter 9: Heat
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Chapter and Section Chapter 14: Cha
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Chapter and Section Chapter 18: Ear
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Chapter and Section Chapter 24: Wav
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Name: Date: 1.1 Lab Safety What can
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Page 3 of 6 Safety quiz 1. Draw a d
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Name: Date: 1.1 Using Your Textbook
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Page 2 of 3 The following prefixes
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Name: Date: 1.1 Scientific Notation
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Page 2 of 4 Example 1: Measuring ob
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Name: Date: 1.2 Reading Strategies
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Name: Date: 1.2 Stopwatch Math What
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Name: Date: 1.2 Understanding Light
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Name: Date: 1.2 Indirect Measuremen
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Name: Date: 1.3 Dimensional Analysi
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Name: Date: Skill Builder Fractions
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Page 3 of 4 Solving fraction proble
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Name: Date: 1.3 Significant Digits
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Page 3 of 4 Follow these steps for
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Name: Date: 1.3 Study Notes This sk
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Name: Date: 1.3 Science Vocabulary
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Page 3 of 3 Using the table of pref
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Name: Date: 1.4 Creating Scatterplo
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Name: Date: 1.4 Recognizing Pattern
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Name: Date: 2.2 Using Computer Spre
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Name: Date: 3.1 Latitude and Longit
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Name: Date: 3.1 Map Scales Mapmaker
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Name: Date: 4.1 Vectors on a Map Yo
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Name: Date: 3.3 Bathymetric Maps Im
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Name: Date: 4.1 Solving Equations w
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Page 3 of 4 Use the formula V = l
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Name: Date: 4.1 Problem Solving Box
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Name: Date: 4.1 Percent Error When
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Page 2 of 3 1. A bicyclist travels
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Name: Date: 4.1 Velocity Speed and
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Name: Date: 4.2 Calculating Slope f
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Name: Date: 4.2 Analyzing Graphs of
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Name: Date: 4.2 Analyzing Graphs of
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Name: Date: 4.3 Acceleration Accele
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Name: Date: 4.3 Acceleration and Sp
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Name: Date: 5.1 Ratios and Proporti
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Name: Date: 5.1 Internet Research S
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Name: Date: 5.1 Preparing a Bibliog
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Name: Date: 5.1 Mass vs. Weight Wha
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Page 2 of 2 How much does it weigh
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Name: Date: 5.3 Equilibrium When al
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Name: Date: 6.1 Net Force and Newto
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Page 2 of 2 Reading reflection 1. I
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Name: Date: 6.3 Applying Newton’s
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Name: Date: 6.3 Momentum Conservati
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Name: Date: 6.3 Collisions and Cons
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Name: Date: 6.3 Rate of Change of M
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Page 2 of 2 Example 3: A 500-newton
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Page 2 of 2 3. Now, calculate the g
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Name: Date: 7.2 Energy Transformati
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Name: Date: 7.2 Conservation of Ene
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Page 2 of 2 Reading reflection 1. W
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Name: Date: 7.3 Power In science, w
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Name: Date: 7.3 Power in Flowing En
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Name: Date: 7.3 Efficiency and Ener
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Page 2 of 2 Reading the temperature
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Name: Date: 9.1 Using the Heat Equa
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Name: Date: 10.1 Measuring Mass wit
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Name: Date: 10.1 Density The densit
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Name: Date: 10.3 Pressure in Fluids
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Name: Date: 10.3 Boyle’s Law The
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Name: Date: 10.4 Charles’s Law Ch
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Name: Date: 10.4 Archimedes 10.4 Ar
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Name: Date: 10.4 Narcís Monturiol
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Name: Date: 10.4 Archimedes’ Prin
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Name: Date: 11.1 Layers of the Atmo
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Page 2 of 3 Using temperature data
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Page 1 of 2 11.3 Joanne Simpson 11.
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Name: Date: 11.3 Weather Maps You h
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Name: Date: 11.3 Tracking a Hurrica
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Name: Date: 12.1 Structure of the A
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Name: Date: 12.1 Atoms and Isotopes
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Name: Date: 12.1 Ernest Rutherford
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Name: Date: 21.2 Calculating Concen
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Name: Date: 21.2 Solubility In this
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Page 3 of 3 The influence of temper
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Page 2 of 3 Work through these exam
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Name: Date: 21.3 Calculating pH The
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Name: Date: 22.1 Groundwater and We
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Page 3 of 3 Testing the model: 1. W
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Name: Date: 24.1 Period and Frequen
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Page 2 of 2 2. Use the grids below
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Name: Date: 24.3 Decibel Scale The
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Page 2 of 2 a. ____________________
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Name: Date: 24.3 Palm Pipes Project
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Page 2 of 2 a. ____________________
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Name: Date: 25.3 Using Ray Diagrams
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Name: Date: 26.1 Gravity Problems I
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Name: Date: 26.1 Universal Gravitat
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Page 1 of 2 26.1 Nicolaus Copernicu
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Page 1 of 2 26.1 Johannes Kepler 26
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Name: Date: 26.1 Measuring the Moon
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Page 2 of 2 Part 2: Provisions for
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Page 1 of 2 27.1 Arthur Walker 27.1
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Name: Date: 27.2 The Inverse Square
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Page 2 of 3 1. Fill in the missing
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Name: Date: 28.1 Understanding Ligh
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Name: Date: 28.1 Parsecs You have a
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Page 2 of 2 Solving Doppler Shift P
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13. A decimeter is 100 times larger
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Skill Sheet 1.3: Significant Digits
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7. Yes, there is a relationship bet
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6. The slope is the same (2.0) unti
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13. S Sh—Sand and shells on the b
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10. 410 miles 11. 6.6 miles -------
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Skill Sheet 4.2: Analyzing Graphs o
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Skill Sheet 5.1: Mass, Weight, and
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Skill Sheet 6.3: Applying Newton’
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Skill Sheet 7.1: Mechanical Advanta
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8. The middle gear turns left. The
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Skill Sheet 7.3: Power in Flowing E
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Skill Sheet 10.1: Calculating volum
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3. Answers are: a. 100 cm 3 b. 13 N
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Skill Sheet 11.3: Weather Maps Samp
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a. b. c. d. e f. Skill Sheet 12.2:
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Skill Sheet 14.1: Chemical Equation
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must be blocking their insulin’s
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8. The current is approximately the
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7. Students can find information ab
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Skill Sheet 17.4: Electrical Power
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Skill Sheet 19.1: Charles Richter 1
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Practice 2: 1. First problem is don
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Skill Sheet 21.3: Calculating pH 1.
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Question 8 (con’t) 9. The new wav
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Skill Sheet 25.2: The Human Eye a.
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Skill Sheet 26.1: Nicolaus Copernic
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Skill Sheet 27.1: Arthur Walker 1.
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