1
Of the objects shown, which one(s) do not
have energy in their kinetic energy stores?
Of the objects shown, which one(s) do not have energy in their kinetic energy stores?
Of the objects shown, which one(s) do not have energy in their kinetic energy stores?
A car speeds up. What happens to its kinetic energy store?
What energy store is involved in fuels, food and batteries?
How is energy moved between energy stores?
Convert the following from J to kJ:
a) 2000 J
b) 3400 J
c) 800 J
d) 12 300 J
What type of energy store is coal?
How long does it take fossil fuels to form?
What energy store is associated with wind?
Some railways still use ‘steam engines’ which burn fuel in the engine to work. Suggest a suitable fuel that could be used.
Which of the following do not require fuel to generate electricity?
Water falls through a height of 5 m in hydroelectric power station A. It falls through a height of 10 m in hydroelectric power station B. Which one will generate the most power and why?
Explain how a hydroelectric power station works.
What is the power if energy is 60J and time is 2s?
Power = Energy / time
What is the power if energy is 80J and time is 5s?
Power = Energy / time