What is the type of heat transfer transfers heat through direct contact between materials?
Conduction
How does heat transfer in this scenario: You have a bowl of ice cream and you had a warm cookie on top.
The warm cookie will transfer its heat to the ice cream.
Give an example of an insulator.
Answers may vary.
Wood, styrofoam, cardboard, rubber, paper, etc.
The amount of heat needed to raise the temperature of a substance by one degree is called this.
specific heat
What type of color absorbs the most heat?
Black
What type of heat transfer is this woman using?
Convection
What happens to particles of matter when thermal energy is added? Must include 2 traits.
The particles spread apart and begin to move more rapidly.
Metal spoons get hot in soup because metal is this type of material.
conductor
At what temperature does water boils in fahrenheit?
212 degrees F
This color reflects the most sunlight? Red, blue, pink, white, gray, or black?
white
What is the type of heat transfer that transfers heat through waves or particles?
Radiation
What happens to particles of matter when it is thermal energy is reduced? Must include 2 traits.
Particles slow down and begin to condense.
What is an insulator? Scientific definition.
A material that stops heat from traveling. Traps heat.
What is absolute 0? What happens at this temperature?
The temperature at which particles of matter stop moving completely.
According to this chart, which material would heat up the fastest?
Diamond
This person is using a flat iron to straighten hair. This would be an example of which heat transfer?
Conduction
Which has more heat energy?
An huge iceberg the size of our school or a standard size hot cup of coffee.
Huge iceberg
Why are metals better conductors?
The atoms are more tightly packed together which allows for atoms to easily collide and transfer heat.
Why can you feel warmth from a campfire even when you are not touching it?
Radiation
Given is a list of materials and their thermal conductivity in w/mK. Which material is the best conductor and the worst conductor on the chart?
Best - Copper
Worst - Iron
What type of heat transfer transfers heat from one place to another through the movement of fluid such as air and water?
Convection
Give an example of something that has kinetic energy.
Answers may vary.
But answer must be of something that is moving.
If you wrap a hot cup of coffee in aluminum foil and then in a towel, which layer affects conduction and which affects radiation?
Foil reduces radiation, towel reduces conduction.
Why are double-paned windows better insulators than single-paned ones?
Because the air (or gas) trapped between the panes reduces conduction and convection.
Which absorbs more heat? Grass or asphalt roads
Asphalt roads