January 22, 2023
IB Past Paper Question Analysis Topic: Physics - Sources of Energy
These types of questions are quite frequently asked in IB Physics exams~
(1) What is a good source of energy?
Solution:
A good source of energy would be one.
1. Which would do a large amoubnt of work per unit volume or mass.
2. be easily accessible.
3. be easy to store and transport
4. perhaps most importantly, be economical.
(2) What is a good fuel?
Solution:
A fuel is said to be good fuel if it produces a large amount of heat on burning without producing a lot of smoke, and is easily available.
(3) If you could use any source of energy for heating your food, which one would you use and why?
Solution:
We will use LPG due to its high calorific value and smokeless flame.