Thermal Energy 1
Thermal Energy 2
Thermal Energy 3
Thermal Energy 4
Thermal Energy 5
100
Which type of heat transfer happens when you burn your hand on the stove?
What is conduction?
100
Movement of thermal energy from a warmer object to a cooler object.
What is Heat
100
The average kinetic energy of the particles that make up a material.
What is temperature
100
Material through which heat flows easily?
What are conductors
100
Which type of heat transfer happens when you get a sunburn during a baseball game?
Radiation
200
Boiling water is what type of heat transfer?
Convection
200
Transfer of thermal energy between materials by direct collision of particles.
Conduction
200
What happens to most materials when heated up?
They expand.
200
Radiation is...
heat transfer through electromagnetic waves
200
Which air is more dense? hot or cold?
Cold air is more dense.
300
You are supposed to get low toward the floor if you are ever caught in a building or house fire. The hotter air and smoke will rise and the cooler air will sink. What type of heat transfer does this represent?
What is Convection?
300
True or False. Heat and thermal energy are the same thing.
False
300
What are two examples of controlled variables for your thermos project?
Water volume, starting temp, time, etc.
300
Objects that do not transfer heat easily?
Insulators
300
What is a measure of the total value of the kinetic energy of a substance?
Thermal energy
400
The Three ways thermal energy is transferred are...
What is Radiation, Conduction, Convection
400
Heat flows from
warmer to cooler temperature
400
Heat rising and cooling to form currents in a fluid
What is convection?
400
Fill in the blanks
a) Radiation
b) Convection
c) Conduction
400
How much heat is absorbed by 20g granite boulder as energy from the sun causes its temperature to change from 10°C to 29°C? (Specific heat capacity of granite is 0.1 cal/gºC)
38 calories
500
Where in a room would you want to place hot air vents? Why is that?
You would want to place them towards the floor. Hot air rises, so having the air come out near the ground would be a more efficient way of spreading the heat evenly around the room.
500
Why does concrete usually get poured in slabs with spaces between each slab?
The space prevents the concrete from buckling when it expands in the summer and contracts in the winter.
500
What is the vocabulary word that means "the amount of heat needed to raise the temperature of a substance 1 J/kg degrees C?"
Specific heat
500
Do ice cubes cool down the water? or does the water warm them up? Explain.
The ice cubes are warmed up by the water because heat only transfers from hot to cold.
500
If two objects are at the same temperature but have different masses, will they contain the same amount of thermal energy?
NO!