Energy

Question 1

Name 8 types of energy

Answer 1

Chemical
Electrical
Magnetic
Solar
Light
Nuclear
Heat
Sound

Question 2

What is kinetic energy

Answer 2

Moving objects have kinetic energy, example moving car or the waves

Question 3

What is potential energy

Answer 3

Very often when you change the shape or position of an object you give the object potential energy. Like a spring or when you wind up a clock

Question 4

What is chemical energy

Answer 4

Chemical energy causing movement may not seem obvious at first.
The food we eat contains the chemical energy that we need to move.

Question 5

What is solar energy

Answer 5

Solar energy is taken straight from the rays of the sun. We convert solar energy to electrical energy using solar cells. We also convert solar energy to heat energy using solar panels.
Photosynthesis is an excellent example of solar energy causing movement. Plants grow in size, i.e. they move upwards.

Question 6

Name two disadvantages to solar energy

Answer 6

Only a small percentage of the solar energy is converted to electrical energy
Solar cells are expensive to make

Question 7

Give two advantages of fossil fuels

Answer 7

Can be stored

Relatively cheap