Energy

Question 1

Which 3 factors affect the energy required to heat something up?

Answer 1

Mass of material
The required temperature change
The type of material (specific heat capacity of the material)

Question 2

What is the unit for energy?

Answer 2

Joules (J)

Question 3

What is the unit for temperature?

Answer 3

Degrees Celsius *C

Question 4

What is the difference between energy and thermal energy?

Answer 4

Thermal energy is stored when raising something to a certain temperature.

Question 5

Conduction

Answer 5

Heat energy is transferred through atoms (particles) bumping into one another. It occurs more in solids because the atoms are closer together.

Question 6

Convection

Answer 6

Transfer of heat energy in liquids and gases.

Question 7

Convection current

Answer 7

Hotter particles rise and cooler particles fall to the bottom

Question 8

Radiation

Answer 8

Thermal energy is transferred via infrared waves. This means it does not need particles like conduction and convection.