AIDE Physical Science Assignment Guide and Key Points

 

Chapter 11 "Sound and Light"

 

Lesson 1 "How Electricity Flows Through a Circuit"

Turn to page308-309 look at the picture on those pages read about it and the short introduction to Chapter 11

Visually Scan Pages 310-314; focus on the blue boxes, which contain the key vocabulary terms.

Visually Scan Pages 310-314 for pictures and diagrams, read each of the captions.

Look for and read any little blue boxes on pages 310-314

Read Pages 310-313 (take notes of important ideas)

Do you know the answers to the questions on page 314? (See Key Points below for help)

Do you know the vocabulary words? (See Key Points below for help)

Take the quiz on Lesson 1 "How Electricity Flows Through a Circuit" (You may use the book, notes and Key Points for help on the quizzes. NOT ON TESTS!)

Review answers on the quiz and print it out. This will be very useful when you are studying for the test.

 

Lesson 1 Key Points

Vocabulary Terms

electricity - flow of electrons.

Static electricity - buildup of electrical charge

Electric current - movement of electrons from one place to another.

Ampere - the unit used to describe how much electric current flows through a wire.

Circuit - a path for electric current

closed circuit - a complete, unbroken path for electric current.

Open circuit - an incomplete or broken path for electric current.

Schematic diagram - a diagram that uses symbols to show the parts of a circuit.

 

 

Section Review Answers

  1. Walking across a carpet causes electrons to leave the carpet and enter your body. When you touch the metal, the extra electrons jump from your hand to the metal doorknob.
  2. A is an open circuit. B is closed circuit.
  3. Current would flow through B because it has a complete unbroken path along which electrons can travel.
  4. Circuit is the name of the path that electrons follow.
  5. An ampere is used to measure electric current.

Did you learn these Objectives?

Can you explain static electricity?

Are you able to explain how electricity moves through a circuit?

Are you able to compare an open circuit to a closed circuit?

 

Lesson 2 "Conductors and Insulators"

Visually Scan Pages 315-319; focus on the blue boxes, which contain the key vocabulary terms.

Visually Scan Pages 315-319 for pictures and diagrams, read each of the captions.

Read Pages 315-318 (take notes of important ideas)

Do you know the answers to the questions on page 319? (See Key Points below for help)

Do you know the vocabulary words? (See Key Points below for help)

Take the quiz on Lesson 2 "Conductors and Insulators" (You may use the book, notes and Key Points for help on the quizzes. NOT ON TESTS!)

Review answers on the quiz and print it out. This will be very useful when you are studying for the test.

 

Lesson 2 Key Points

Vocabulary Terms

Conductor - Material through which electricity passes easily.

insulator - Material through which electricity does not pass.

resistance - Measure of how easily electric current will flow through a material.

Ohm - the unit used to measure resistance.

 

Section Review Answers

  1. Electricity passes easily through a conductor but not easily through an insulator.
  2. Conductors are things such as copper, gold, aluminum, and silver; Insulators are things such as glass, rubber, wood, and plastic.
  3. You might bet shocked because yo could come into contact with the wire.
  4. The material the wire is made of, its length and its thickness affect its resistance. It is useful because it causes electrical energy to change into heat and light, so it can be used in many appliances.
  5. Your list may include microwave ovens, electric stoves, television, electric dryer, and lamps.

Did you learn these Objectives?

Can you explain the difference between a conductor and an insulator?

Are you able to give examples of conductors and insulators?

Are you able to explain what resistance is?

Are you able to list three things that affect the resistance of a material

Can you explain how resistance is useful/

 

Lesson 3 "Some Sources of Electric Current"

Visually Scan Pages 320-324; focus on the blue boxes, which contain the key vocabulary terms.

Visually Scan Pages 320-324 for pictures and diagrams, read each of the captions.

Visually Scan for an read the short articles in the blue boxes that you find on Pages 320-324.

Read Pages 320-323 (take notes of important ideas)

Do you know the answers to the questions on page 324? (See Key Points below for help)

Do you know the vocabulary words? (See Key Points below for help)

Take the quiz on Lesson 3 "Some Sources of Electric Current" (You may use the book, notes and Key Points for help on the quizzes. NOT ON TESTS!)

Review answers on the quiz and print it out. This will be very useful when you are studying for the test.

 

Lesson 3 Key Points

Vocabulary Terms

Electromotive force - the push that keeps the current (electrons) flowing in an electric circuit.

Volt - the metric unit used to measure electromotive force that tells the amount of push.

Voltage - the energy that a power source gives to electrons in a circuit.

Batter - a source of voltage that changes chemical energy into electrical energy.

Dry-cell battery- Electric power source with a dry or paste like center.

Terminal - Points where electrons leave or enter a battery

Wet -cell battery - Electric power source with a liquid center.

Direct current - current that flows in one direction.

Alternating current current that changes direction regularly

 

 

Section Review Answers

  1. Electromotive force is the push that keeps the current flowing in an electric circuit.
  2. A water pump pushes water through a hose just as a battery pushes electrons along a wire.
  3. A dry-cell battery changes chemical energy into electrical energy.
  4. A wet-cell battery is filled with a liquid. A dry-cell battery contains a somewhat dry or paste like material.
  5. Direct current flows in one direction. Alternating current flows back and forth.

Did you learn these Objectives?

Can you define and explain electromotive force.

Are you able to explain how voltage relates to electromotive force?

Can you describe the structure and use of dry-cell batteries?

Can you describe wet-cell batteries?

Are you able to explain the difference between direct current and alternating current/

Lesson 4 "Ohm's Law"

Visually Scan Pages 325-327; focus on the blue boxes, which contain the key vocabulary terms.

Visually Scan Pages 325-327 for pictures and diagrams, read each of the captions.

Visually Scan for an read the short articles and questions in the blue boxes that you find on Pages 325-327.

Read Pages 325-326 (take notes of important ideas)

Do you know the answers to the questions on page 327? (See Key Points below for help)

Do you know the vocabulary words? (See Key Points below for help)

Take the quiz on Lesson 4 "Ohm's Law?" (You may use the book, notes and Key Points for help on the quizzes. NOT ON TESTS!)

Review answers on the quiz and print it out. This will be very useful when you are studying for the test.

 

Lesson 4 Key Points

Vocabulary Terms

Ohm's Law - current equals voltage divided by resistance.

 

 

Section Review Answers

  1. 10 volts/ 5 ohms = 2 amperes
  2. 15 volts/5 ohms = 3 amperes
  3. 50 volts/5 ohms = 10 amperes.
  4. 35 volts/10 ohms = 3.5 amperes.
  5. 1.5 amperes

Did you learn these Objectives?

Can you explain how current, voltage, and resistance are related?

Are you able to use Ohm's law to calculate current?

 

Lesson 5 "Series Circuits"

Visually Scan Pages 328-332; focus on the blue boxes, which contain the key vocabulary terms.

Visually Scan Pages 328-332 for pictures and diagrams, read each of the captions.

Visually Scan for an read the short articles and questions in the blue boxes that you find on Pages 328-332.

Read Pages 328-331 (take notes of important ideas)

Do you know the answers to the questions on page 332? (See Key Points below for help)

Do you know the vocabulary words? (See Key Points below for help)

Take the quiz on Lesson 5 "Series Circuits" (You may use the book, notes and Key Points for help on the quizzes. NOT ON TESTS!)

Review answers on the quiz and print it out. This will be very useful when you are studying for the test.

 

Lesson 5 Key Points

Vocabulary Terms

Series circuit - a circuit in which all current (electrons) flows through a single path.

 

 

Section Review Answers

  1. A series circuit is a circuit in which there is only one path for current.
  2. In a series circuit, electrons only have to flow through one path around the circuit.
  3. The bulb becomes dimmer.
  4. The voltage is increased.
  5. A fuse and a circuit breaker are both connected in a series. They both break a circuit if current becomes too high. A fuse melts and must be replaced, but a circuit breaker can be reset.

Did you learn these Objectives?

Can you describe a series circuit?

Are you able to explain how adding electrical devices or batteries to a series circuit affects the voltage of the circuit?

Can you explain the advantage of using fuses and circuit breakers?

 Investigation 11-1 "Constructing Series Circuits"

Optional, (must complete 3 this quarter)

Contact your instructor if you need the materials for this lab.

Follow the procedure on page 333-334.

Complete the follow-up investigation quiz. (The 5 questions will be the same as the five questions on P334)

 

 

Lesson 6 "Parallel Circuits"

Visually Scan Pages 335-337; focus on the blue boxes, which contain the key vocabulary terms.

Visually Scan Pages 335-337 for pictures and diagrams, read each of the captions.

Visually Scan for an read the short articles and questions in the blue boxes that you find on Pages 335-337.

Read Pages 335-336 (take notes of important ideas)

Do you know the answers to the questions on page 337? (See Key Points below for help)

Do you know the vocabulary words? (See Key Points below for help)

Take the quiz on Lesson 6 "Parallel Circuits" (You may use the book, notes and Key Points for help on the quizzes. NOT ON TESTS!)

Review answers on the quiz and print it out. This will be very useful when you are studying for the test.

 

Lesson 6 Key Points

Vocabulary Terms

parallel circuit - a circuit in which there is more than one path for current.

 

Section Review Answers

  1. A parallel circuit has more than one path for current. When the bulb burns out, the others will continue to shine.
  2. A. 2; B. 3
  3. The brightness remains the same.
  4. The voltage remains the same.
  5. A. series; B parallel; C series; D parallel; E. series; F. parallel

Did you learn these Objectives?

Can you describe a parallel circuit?

Are you able to explain what happens to the brightness of bulbs in a parallel circuit when more bulbs are included?

Are you able to explain what happens to voltage when two batteries with the same voltage are connected in parallel?

Investigation 11-2 "Constructing Parallel Circuits"

Optional, (must complete 3 this quarter)

Contact your instructor for materials if you would like to complete this lab.

Follow the procedure on page 338-339.

Complete the follow-up investigation quiz. (The 6 questions will be the same as the six questions on P339)

 

 

Lesson 7 "Measuring Electricity"

Visually Scan Pages 340-342; focus on the blue boxes, which contain the key vocabulary terms.

Visually Scan Pages 340-342 for pictures and diagrams, read each of the captions.

Visually Scan for an read the short articles and questions in the blue boxes that you find on Pages 340-342.

Read Pages 340-341 (take notes of important ideas)

Do you know the answers to the questions on page 342? (See Key Points below for help)

Do you know the vocabulary words? (See Key Points below for help)

Take the quiz on Lesson 7 "Measuring Electricity" (You may use the book, notes and Key Points for help on the quizzes. NOT ON TESTS!)

Review answers on the quiz and print it out. This will be very useful when you are studying for the test.

 

Lesson 7 Key Points

Vocabulary Terms

electric power - the amount of electrical energy used in a certain amount of time.

Kilowatt-hour - a unit to measure how much electric energy is used; it is 1,000 watts used in one hour.

 

Section Review Answers

  1. The 25 W stamped on the light bulb means it uses 25 watts each second.
  2. A 75 watt bulb uses more energy.
  3. A kilowatt-hour is a unit to measure how much electric energy is used. It is 1,000 watts used in one hour.
  4. It is used to measure the amount of electricity used in one hour.
  5. Electric power describes the amount of electrical energy used in a certain amount of time.

Did you learn these Objectives?

Can you explain what electric power is?

Are you able to explain how electric power is measured?

 Preparing for Chapter 11 Test

Turn to Page 343 and read the Chapter 11 summary.

On pages 344-345 you will find the Chapter 11 review, complete the review.

Check your answers with those in the Key Points.

Take the Chapter 11 Test "Electricity"

Review the answers then print the results for your records.

 

Chapter 11 Review answers

  1. kilowatt-hour
  2. volt
  3. terminal
  4. ampere
  5. ohm
  6. D
  7. B
  8. C
  9. B
  10. A
  11. A
  12. B
  13. Resistance causes electrical energy to change into heat and light energy. The current is 2 amperes.
  14. It is a series circuit; current flows through only one path around the circuit.

 

Congratulations you finished the eleventh chapter !!