Electrical Power

Unit Conversions

Grade 7 Review

Multiple Choice

In the circuit diagram below the reading on the voltmeter is 12 V and the reading on the ammeter is 0.6 A. What is the resistance of element R?

• 0.05 Ω

• 7 Ω

• 10 Ω

• 20 Ω

Multiple Choice

Which of the circuits below is connected in parallel?

• 1 & 4

• 2 & 4

• 1 & 3

• 2 & 3

the METRIC system

is not complicated

Multiple Choice

Convert 8 kilometers to meters

• 800 m

• 80000 m

• 8000 m

• .008 m

Multiple Choice

___m = 17km

• 17000

• 170

• 1700

• 0.17

Multiple Choice

65g = ___mg

• 650

• 6500

• 65000

• 6

Multiple Choice

190 KΩ = ___Ω

• 190

• 190 000

• 19

• 19 000

Multiple Choice

180m = ___dm

• 8

• 18 000

• 1 800

• 18

Multiple Choice

4 cm = ___mm

• 400

• 40

• 4

• 4 000

Multiple Choice

1 meter = _______ cm

• 1

• 1 000

• 100

• 400

Multiple Choice

200 mA = _____ A

• 200 A

• 0.02 A

• 0.2 A

• 2 A

Multiple Choice

600 W = _____ kW

• 0.6

• 0.006

• 600 000

• 60 000

Multiple Choice

150 mA = ______ A

• 1500 A

• 0.50 A

• 150000 A

• 0.15 A

Lets take a break from the metric system and look at time

Its about time

Multiple Choice

How many hours are in a day?

• 42

• 24

• 12

• 48

Multiple Choice

There are how many days in a year?

• 30

• 7

• 245

• 365

Multiple Choice

How many days are in a week?

• 5

• 12

• 7

• 2

Multiple Choice

How many minutes are in a 1/2 hour?

• 30

• 60

• 45

• 15

Multiple Choice

There are _____ seconds in a minute?

• 30

• 12

• 60

• 24

Multiple Choice

How many months are in a year?

• 12

• 24

• 11

• 7

Multiple Choice

Fill in the blank:
60 __________ = 1 hour

• milliseconds
• minutes
• seconds
• days

Multiple Choice

Fill in the blank: 
120 seconds = ___ minutes

• 1
• 2
• 4
• 7

Multiple Choice

Fill in the blank: 
3 hours = ___ minutes

• 120
• 60
• 180
• 360

Multiple Choice

Fill in the blank:

48 hours = ___ days

• 3

• 1

• 2

• 5

Multiple Choice

500 seconds = _____ hours

• 300000

• 0.139

• 8.3

• 1800000

Multiple Choice

1 minute and 30 seconds = ______ hours

• 0.15

• 324 000

• 0.025

• 3660

GOOD! Glad we can all do that

congratulations you have passed grade 7