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Common and Decimal Fractions
(see page 98)
[ 0 point seven
| nought point seven I zero point seven |
| 0.7 |
----- one half (a half)
- - one third (a third)
| — two sevenths 3----- three and a half 5----- five and a seventh 6----- six and five sevenths |
0.002 - zero point two zeros two
1.1- one point one
5.36 - five point three six
65.57 - sixty-five point five seven
2. Read these common and decimal fractions:
| 15 8/9 0.0003 |
| 1/3 0.23 |
2/5 5/8 7 1/2 9 5/8
| 79.31 |
| 10.01 |
| 0.009 |
205.35
-6-
-1-
| 3. Solve the following problems using the formulas of Ohm's Law. Model: - Current equals 5 amp; resistance equals 10 ohms. How much is the voltage? - Voltage equals current times resistance. 5 x 10 = 50 V |
| 4. Pair work. Make up similar problems of your own. Ask your group-mate to solve them. |
1. a) Cover the right column and read the English words. Translate them into Russian and check your translation.
b) Cover the left column and translate the Russian words back into English.
| current resistance voltage to suppose law |
| ['kArant] [n'ziSt9ns] [Voultid3] [sa'pouz] Ы |
| Ohm's Law |
электрический ток сопротивление вольтаж, напряжение предполагать закон
1) R = 80 ohms
V = 55V
I = ?
4) 1= 10,500 amp
V = 2,000 V
R = ?
2) R= 10.25 ohms I - 35 amp V = ?
5) V = 20.05 V R = 0.015 ohm I = ?
3)V = 50.05 V I = 120 amp R = ?
6) I = 0.24 amp R= 1.36 ohms V = ?
V
R = - Resistance equals voltage divided by current.
V I = — Current equals voltage divided by resistance. R
V = IR Voltage equals current times resistance.
1. a) Cover the right column and read the English words. Translate them into Russian and check your translation.
b) Cover the left column and translate the Russian words back into English.
| 2. Translate into Russian: 1. An open and a short are troubles in a circuit. 2. A trouble in a circuit results in no current in it. |
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| Addition and Subtraction | | | Solution |
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