What do plants need to photosynthesise?
Water, carbon dioxide and light.
What do plants produce during photosynthesis?
Oxygen and sugar
Identify the energy conversions at A, B and C.
A: Chemical potential energy, B: Kinetic energy, C: Kinetic energy
Identify the energy conversion in the picture for A and B.
A: Gravitational potential energy B: Kinetic energy
What is the energy conversion for the solar cell in the calculator?
Electrical ---- > Light
What is the energy conversion for the electric toy truck (there are no bulbs or speakers)?
Electrical energy -- > Kinetic energy
What is the energy conversion for the television set?
Electrical energy ---> Light + heat + sound
How can you increase the speed of the cup in this picture?
Increasing the amount of heat / Use a bigger flame
At which position does the ball have the most kinetic energy?
B
What is the energy conversion in this picture?
Gravitational potential energy -- > Kinetic energy -- > Heat + Sound
What is the energy conversion in the picture below?
Kinetic energy --> Kinetic energy --> Kinetic energy + sound + heat
What type of energy represent graphs X and Y?
Graph X: Kinetic Energy Graph Y: Gravitational potential energy
What is the gas produced by this water plant?
Oxygen
Why did the plant produce fewer bubbles?
As the torchlight moves away from the plant, there is less light for photosynthesis
