Power Consumption

Which country has the highest electric power consumption per capita according to the chart?

• Canada

• United States

• Australia

• Japan

Fill in the blank: The typical electricity consumption for a garage door is _____ kWh.

• 198

• 73

• 53

• 40

What is the typical electricity consumption for a phone charger?

• 198 kWh

• 73 kWh

• 53 kWh

• 2 kWh

Higher power consumption generally indicates:

• Lower energy output

• Higher energy output

• No change in energy output

• Energy conservation.

From household appliances to industrial machines, power consumption is used as a scale for ______.

• Measuring speed

• Energy-efficient devices

• Calculating distance

• Determining weight

Power consumption is measured in which units?

• Joules

• Watts (W) or Kilowatts (kW)

• Newtons

• Amperes

What is the formula for calculating power?

• Power = Voltage × Resistance

• Power = Voltage × Current

• Power = Current × Resistance

• Power = Energy × Time

What is the power usage of an incandescent bulb?

• 8-12 watts

• 15-40 watts

• 60 watts

• 100-800 watts

LED bulbs use _____ watts for the same brightness level.

• 8-12

• 15-40

• 60

• 100-800

Fluorescent lights use 15-40 watts depending on the _____.

• A) type and size

• B) color

• C) brand

• D) location