Power

Is the amount of energy being transferred over a period of time.

• Power
• Energy
• Seconds
• Joules

What is the unit of measurement for power?

• Joules
• Watts
• Voltage
• Calories

Which appliance transfers the most energy per second? 

• Clock
• Lamp
• Desktop Computer
• Iron

What are we paying electrical companies?

• The power of the appliance per hour of use.
• We electricity used per hour. 
• The impact of electricity use on the environment.
• The efficiency of the appliance.

What is the unit of energy that electrical companies use?

• kJ
• kW
• kJ/hour
• kW/hour

A kettle transfers 1000J of energy every 2 seconds. Calculate its power.

• 2000 Watts
• 1000 Watts
• 500 Watts
• cannot be determined

Which of the following will help us cut on electricity bills?

• Using high power appliances longer.
• Using high power appliances less often.
• Using appliances that produce heat energy.
• Using less efficient appliances.

__________ is an energy resource that WILL run out in the next several hundred years.

• Renewable Energy Resource
• Nonrenewable Energy Resource
• Fossil Fuels
• Forever Fuels

__________ is an energy resource that WILL NOT run out in the next several hundred years.

• Renewable Energy Resource
• Nonrenewable Energy Resource
• Fossil Fuel
• Forever Fuel

Coal is a __________ energy resource.

• Renewable
• Nonrenewable

Tags

NGSS.HS-ESS3-1