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Do now - Define it
Do now - Define it
Before looking at the rest of the webpage or doing any research, please write a definition of what you believe power to be in the scientific sense.
Give and example of what you mean.
Complete the task on the companion sheet
Task 2 - Observations
Task 2 - Observations
Both of these bulb are connected to an energy meter - like a smart meter at home.
Have a look at the pictures and decribe what it is telling you.
Extension - Which bulb would you buy and why?
Complete the task on the companion sheet
Task 3 - quick check
Task 3 - quick check
Do some quick conversions on your companion sheet
Task 4 - intro video
Task 4 - intro video
Watch the video a couple of times and then answer the questions on the companion sheet
Key definition
Key definition
1 Watt (W) is equal to 1 joule (J) of energy transferred every second (s)
1 Watt (W) is equal to 1 joule (J) of energy transferred every second (s)
Therefore :
Therefore :
A 1kW Kettle transfers 1000J of energy to the water every second.
A 1kW Kettle transfers 1000J of energy to the water every second.
A1.2kW kettle transfers 1200J of energy to the water every second
A1.2kW kettle transfers 1200J of energy to the water every second
This means that:
This means that:
Given the same mass of water the 1.2kW kettle will boil faster (this ties in with SHC)
Given the same mass of water the 1.2kW kettle will boil faster (this ties in with SHC)
Task 5 - Practise
Task 5 - Practise
Defeat the practise questions ----HIIII YAAAAAAH
Cross topic link!
Cross topic link!
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