Energy Consumption and Cost Calculations

The video tutorial explains how to calculate the cost of electrical energy usage. It begins by introducing the concept of energy cost charged by electric companies, based on kilowatt hours. The tutorial then demonstrates how to convert the power of a 60-watt bulb into kilowatts and calculate the energy usage over 30 days. Finally, it shows how to compute the cost in cents and convert it to dollars, concluding with a call to action for viewers to engage with the content.

What do power companies charge you for?

• The time you spend using devices

• The energy you use

• The number of devices you own

• The type of devices you use

What is the cost per kilowatt-hour mentioned in the video?

• 20.00 cents

• 15.00 cents

• 12.50 cents

• 10.00 cents

How is a kilowatt-hour defined?

• Power times time

• Time divided by power

• Power divided by time

• Energy divided by time

How do you convert watts to kilowatts?

• Multiply by 1000

• Divide by 1000

• Multiply by 100

• Divide by 100

How many hours are there in 30 days?

• 840 hours

• 900 hours

• 600 hours

• 720 hours

What is the total energy consumption of a 60-watt bulb over 30 days?

• 50.0 kilowatt-hours

• 43.2 kilowatt-hours

• 36.0 kilowatt-hours

• 40.0 kilowatt-hours

How do you calculate the total energy consumption?

• Divide power by time

• Subtract power from time

• Add power and time

• Multiply power by time

What is the total cost in cents for the energy consumed?

• 500 cents

• 520 cents

• 540 cents

• 560 cents

How many cents are there in one US dollar?

• 50 cents

• 75 cents

• 100 cents

• 150 cents

What is the total cost in US dollars for the energy consumed?

• $4.50

• $6.00

• $5.40

• $5.00