Day 11 - Series and Parallel circuits

Here is the work we did in class today:

Go over some homework questions before handing in – make sure people get a chance to correct them.
Give out quiz on chapter 8 – retests for those who failed ch 7 immediately afterwardsAssign up to the chapter review for chapter 9 – prepare for quiz next day and unit test next day.




1.) We wrote a quiz on Chapter 8 - results to be handed back tomorrow.
2.) Pg 313 # 1 - 6
3.) Pg 319 # 1 - 7
4.) pG 330 # 1- 21



Good luck, and remember we will finish chapter 9 this week, and do a quiz on Chapter 9. This week we will also be doing a Unit Test on Chapter 7, 8, and 9. Feel free to bring questions to Mr. Gill before and after class.

Answers to Chapter 8


Chapter 8 Quiz
1. C
2. B
3. D
4. A
5. D
6. A
7. C
8. C
9. C
10. D
11. D
12. B
13. A
14. G
15. E
16. C

Answers from last day's work

Pg 302 # 1- 21 Checking Concepts

1. The battery is the source of electric potential
energy in a circuit.
2. In a battery, chemical energy is transformed
into electric potential energy.
3. The amount of electric potential energy is
dependent on both the amount of charge
separated and the voltage.
4. Two dissimilar metals and an electrolyte are
needed to produce an electrochemical cell.
5. Five methods of producing electrical energy
are: friction, piezoelectric crystals, photoelectrochemical
cells, thermocouples, and
generators. Other answers may be acceptable.
6. Voltage is measured in volts.
7. A voltmeter is used to measure voltage.
8. An ammeter is used to measure current.
9. See Mr. Gill for answer
10. See Mr. Gill for answer
11. 1000 mA = 1 A
12. Conventional current is the flow of positive
charge and therefore flows from positive to
negative. Electron flow is the flow of negative
charge and therefore flows from negative to
positive.
13. The four basic components of an electric circuit
are: source, conductor, load, and switch.
14. Resistance is the property of any material that
slows down electrons and converts electrical
energy into other forms. A resistor is an electrical
component that has resistance.
15. Voltage equals the product of current and
resistance.
16. When an electron passes through a resistor, its
electrical energy is transformed into other
forms of energy.
17. An ohmmeter is a device used to measure
resistance.
18. The four coloured bands on a resistor represent:
first digit, second digit, multiplier, and
accuracy.
Understanding Key Ideas
19. Skiers at the top of a hill have gained potential
energy. This potential energy can now change
into other forms as they ski down the mountain.
Electrons on the negative terminal of the
battery also have potential energy and can
transform this energy into other forms of
energy as they pass through the circuit.
20. The reading on the voltmeter would now be
zero. This is because both leads are at the
same potential; therefore there is no potential
difference (voltage).
21. Electric potential energy is due to both the
voltage and the amount of charge separated.
Even though the two batteries have the same
voltage, one of the batteries could be able to
separate more charge and therefore provide a
greater energy.