UNIT 1- energy in food Flashcards
(5 cards)
1
Q
What is energy measured in?
A
Kilojoules (kj) and Kilocalories (kcal)
2
Q
How do you find how many kcals are in a kj?
A
x4.2
3
Q
How do you find how many kj are in a kcals?
A
÷4.2
4
Q
how many joules are in a kj?
A
1000
5
Q
Scientific way to find out energy
A
The amount of thermal energy that is released from burning food can be used to measure energy in its chemical store.
