energy Flashcards
1
Q
What is another name for burning?
A
combustion
2
Q
What is the correct unit for energy?
A
joule
3
Q
Around how many kJ of energy does an adult need per day
A
8400
4
Q
What is the term that means the rate at which energy is used?
A
power
5
Q
What are the units of power?
A
watts
6
Q
How can energy be released from food?
A
respiration or combustion
7
Q
How many watts are in a kilowatt?
A
1000
8
Q
What units do electrical suppliers use for energy?
A
kWh
