Food and energy Flashcards
1
Q
What type of energy is in food
A
Chemical
2
Q
Who needs more energy from their food: A rugby player or office worker? Why?
A
Rugby Player as they use more energy
3
Q
What is the unit for energy?
A
Joules
4
Q
Brisk walking typically uses 14 kJ per minute. If 100g of apple give you 140kJ how long can you walk for?
A
140/14 = 10 minutes
5
Q
What is another name for burning?
A
Combustion
6
Q
How do we get energy from the food we eat?
A
Respiration
