Electrical Power and Cost of Electricity

What quantities do you need to calculate energy?

• Current and Voltage 
• Power and time
• Resistance and current
• Power and Voltage

Tags

NGSS.HS-PS3-5

What quantities do you need to calculate power?

• Current and Voltage 
• Power and time
• Resistance and current
• Power and Voltage

What are the units for energy?

• kWh
• Joules
• Both
• Neither

How many kilowatts are in 6500 W

• 0.65 kW
• 6.5 kW
• 65 kW
• 6,500,000 kW

How many kilowatts are in 500 W

• 0.5 kW
• 5 kW
• 50 kW
• 500,000 kW

How many kilowatts are in 80 W

• 0.008 kW
• 0.08 kW
• 0.8 kW
• 8 kW

How many watts are in 0.003 kW

• 0.3 W
• 3 W
• 300 W
• 3000 W

How many watts are in 2 kW

• 0.2 W
• 2 W
• 200 W
• 2000 W

How many seconds are in 4 hours

• 240 s
• 14400 s
• 0.067 s
• 400

How many seconds are in 9 days

• 540 s
• 32400 s
• 12960 s
• 777,600 s