A
what are the two main forms of energy
chemical and mechanical
what type of energy is being used: glow sticks
light energy
what are the two main things that belong under the category of chemical energy
food and gasoline
how heat moves from one end of a solid to the other
conduction
what are the two main things that belong under the category of mechanical energy
kinetic energy and potential energy
what type of energy is being used: food gives people and animals energy to live
chemical energy
what type of energy is being used: you can feel an instruments vibrations
sound energy
what heat does during convection or conduction
transfers
what type of energy is being used: a jumping, up and down motion
kinetic energy
what is happening: conduction, radiation, or convection?
sandwich press
conduction
how heat moves through a liquid
convection
sometimes windows have two of these to help keep heat in or keep heat out
two panes of glass
what type of energy is being used: roller coaster cars go to the top of the hill and stop for a moment
potential energy
heat moves from this source by convection and radiation
campfire
how heat travels through empty space
radiation
which forms of heat transfer do insulated bottles prevent?
conduction, convection and radiation
what is happening: conduction, radiation, or convection?
hot water added to bath
convection
the silver layer of an insulated bottle does this to radiated heat
reflects
name two things that do no conduct heat as well as metals do
answers will vary
ex: plastic, marble, wood
what type of energy change takes place as a car burns fuel to race down a track?
chemical energy to kinetic energy
a light bulb changes electrical energy into two other forms of energy. what are they?
light energy and heat energy
what is the definition of a conductor and give an example
a material that allows heat to move through it easily
answers will vary
ex: metal, wire
name two examples of an insulator
answers will vary.
ex: hat, coat, gloves, rubber, oven mits
what is the definition of an insulator and give an example
a material that does not conduct heat well, keeps temperature what you want it to be
answers will vary
ex: hat, rubber, coat, oven mit
what is happening: conduction, radiation, or convection?
clothes dryer
convection and conduction