Heat And Energy Flashcards
8 types of energy
Heat energy,
electricity energy
sound energy,
light energy ,
chemical energy,
nuclear energy ,
potential energy,
kinetic energy
Laws of conservation
When a type of energy converts to another type of energy
The difference between heat and temperature
Temperature is measured in how hot and cold something is(measured in c⁰)
Heat is a type of energy measured in joules ( J )
What are good heat conductors
Metal or wood
Name examples of heat conductors
Wood ,plastic, metal
Name some good heat insulators
Cotton wool ,aluminium foil
State that heat travels by convection in liquid and gases
The transfer of heat is made by particles moving in a fluid . When a flow in particles created when hot part rise and cold particles fall which is know as a convection current
What is a fluid
A material which is a liquid or a gas
Describe that convection the rising of hot particles and the fall of cold particles
Once the particles are heat they become less dense and rise .Once they have reached as high as they can they move across Once it reaches as far across as they can they become more dense and fall and when they get to the lowest point And then reach there heat source and then it starts again this is know as a convection current .
A convection current
A flow of particles created when hot particles rise and colds particles fall
State that heat theat travels by radiation through free space
The transfer of heat using invisible waves
describe that radiation is the transfer of heat using invisible waves.
Radiation works without the need for direct contact or the air being blown around from the heat source.
state that heat insulation can be used to reduce heat loss by radiation.
Heat insulations are used so that heat energy can’t go through or passed it
