1. Review of : Heat, Temperature & Thermal Energy

2. Heat
Heat is a _______ of energy from objects at a _________ temperature to objects at a __________ temperature.
Soon after you put ice cubes into a pitcher of lemonade, energy is transferred from the warmer _________ to the colder ____.
flow
higher
lower
lemonade
ice
HEAT FLOWS FROM WARMER  COOLER!!!

3. Temperature
Temperature is a measure of the __________ kinetic energy of all the particles in an object.
If a liquid, such as hot cocoa, has a high temperature, the particles in the liquid are moving __________, and have a _______ average kinetic energy.
If a drink, such as a fruit smoothie, has a low temperature, the particles in the liquid are moving _________ and have a _______ kinetic energy
average
Very fast
high
More slowly
low

4. Thermal Energy
Thermal energy is the _______ kinetic energy of particles in an object.
Note that temperature and thermal energy are different from each other. Temperature is an __________ while thermal energy is a ______.
A glass of water may have the same temperature as the Mississippi River, but will have _____ thermal energy because there are less water particles in the glass of water.
total
average
total
less

5. Review of Conduction, Convection, and Radiation

6. Conduction
Conduction is the process that moves energy from one object to another when they are _______________.
Conduction occurs any time that objects at a _________ temperature come into contact with each other.
Conduction can also occur within a single object. In this case, energy is transferred from the ______ part of the object to the _______ part of the object.
Touching physically
different
warmer
cooler

7. Convection
Convection is the process that transfers energy by the movement of particles in the same direction in a _________ or ____.
Cool air/water that is _____ dense will push warmer, _____ dense, air/water upwards. Once that warm air/water cools, it becomes _____ dense once again and settles back down to the bottom to start the process all over again.
liquid
gas
more
less
more

8. Radiation electromagnetic Sun warmer cooler Empty space
Radiation is energy that travels as ______________ waves, which includes visible light and microwaves.
The ____ is the most significant source of radiation that you experience on a daily basis.
Like both conduction and convection, radiation can transfer energy from a ______ object to a _______ one.
However, radiation differs from conduction and convection because radiation can travel through ______________, as it does when it moves from the Sun to the Earth.
electromagnetic
Sun
warmer
cooler
Empty space

9. Quiz Practice!

10. A hot saucepan is placed on a cold bench
A hot saucepan is placed on a cold bench. Heat will flow from the saucepan to the bench until
A. the bench is warmer than the saucepan.
B. the bench is as hot as the saucepan was.
C. the saucepan has lost all of its heat.
D. the saucepan and bench are at the same temperature.

11. A candle is lit. The heat of the flame will melt the candle because
A. the heat of the hot flame is transferred to the colder candle.
B. the wax of the candle is repelled by the flame.
C. the candle must stay hot to heat the flame.
D. the flame takes all the heat energy and the candle has no energy.

12. Which types of heat transfer involve heat flow from hot objects to colder objects?
A. convection, conduction, and radiation
B. conduction and radiation, but not convection
C. convection and conduction, but not radiation
D. convection and radiation, but not conduction

13. Heat will flow from a hot object to a cold object until the objects reach
A. Boiling point.
B. stability.
C. collapse.
D. The same temperature.

14. Ice is placed in hot water
Ice is placed in hot water. What happens to the temperature of the ice and the water? A. The ice gets warmer, and the water gets cooler. B. The ice gets warmer, and the water stays the same. C. The ice and the water both get cooler. D. The ice gets cooler, and the water gets warmer.

15. When you hold a cup of warm water, your hands get warmer
When you hold a cup of warm water, your hands get warmer. Why does this happen?
A. Heat transfers by convection
B. Heat transfers by conduction
C. Heat transfers by condensation
D. Heat transfers by radiation

16. The total energy of all particles in a substance is called –
Temperature
Thermal energy
Degrees
Mass

17. Heat flows –
Only from warmer objects to cooler ones
Only from cooler objects to warmer ones
Both ways between objects that are not at the same temperature
Between all objects all the time regardless of their temperature

18. Heat is transferred from one particle of matter to another through the movement of fluids in a process called –
Conduction
Convection
Radiation
Insulation

19. Which kind of heat transfer takes place when you put a spoon in a cup of soup and the spoon gets hot to the touch
Convection
Conduction
Deduction
Radiation

20. Which kind of heat transfer can occur through space
Radiation
Conduction
Convection
Deduction

21. Which kind of heat transfer occurs when you add hot water to a cold bath?
Radiation
Conduction
Deduction
Convection

22. Conduction Deduction Radiation Convection
It is a cold winter day. You’ve been out playing, and you warm you hands in front of the fire in your fire place. Which kind of heat transfer is this?
Conduction
Deduction
Radiation
Convection