buying energy20 apr class listseating plan buying the power!!!! 20 apr 2012
TRANSCRIPT
Buying Energy 20 Apr
Class listSeating Plan
Buying the POWER!!!!
20 Apr 2012
Buying Energy 20 Apr
Class listSeating Plan
Learning Objectives
• Recall what the Kilowatt hour is– Level 3-5
• Be able to calculate Watts, joule’s and seconds from one another
• Be able to calculate the cost of different appliances running for different times
– Level 5-7
Buying Energy 20 Apr
Class listSeating Plan
Any ideas on how electricity is paid for at home?
Buying Energy 20 Apr
Class listSeating Plan
Buying Energy 20 Apr
Class listSeating Plan
Buying Energy 20 Apr
Class listSeating Plan
Buying Energy 20 Apr
Class listSeating Plan
Buying Energy 20 Apr
Class listSeating Plan
kWh = (no. Watts) x (time in hours)1000
1kWh = (1,000 Watts) x (1 hour)1000
Buying Energy 20 Apr
Class listSeating Plan
Calculating kWh thingy time
Buying Energy 20 Apr
Class listSeating Plan
Buying Energy 20 Apr
Class listSeating Plan
What’s the Power?
Buying Energy 20 Apr
Class listSeating Plan
Buying Energy 20 Apr
Class listSeating Plan
Watts = Voltage x Current
1 Watt = 1 volt x 1 amp
Buying Energy 20 Apr
Class listSeating Plan
Learning Objectives
• Recall what the Kilowatt hour is– Level 3-5
• Be able to calculate Watts, joule’s and seconds from one another
• Be able to calculate the cost of different appliances running for different times
• Calculate the power of an appliance– Level 5-7