Download Third Six Weeks SFA/Energy Transformation Review

Energy Unit Part II Test Review KEY
At what point is potential and kinetic energy the highest?
1. Potential energy ___A__________
A
2. Kinetic energy ____C_________
At what point is potential and kinetic energy the lowest?
3. Potential energy ____C______
B
4. Kinetic energy ______A_____
5. The horse has ___gravitational______ potential energy.
6. The horse has _mechanical__________ kinetic energy.
List the 6 types of potential energy and an example of each.
Answers will vary on #7-17
Type of Potential Energy
Examples
7.
8.
9.
10.
11.
12.
List the 4 types of kinetic energy and an example of each.
Type of Kinetic Energy
13.
14.
15.
16.
Light Energy Examples
17.
Examples
C
D
Directions: Match the following key words to their definition.
18. ____A_____ Conduction
A. Transfer of thermal energy through direct
contact between particles of matter
19. ____C_____ Convection
B. Transfer of thermal energy by electromagnetic
waves that can travel through space
20. ____B_______ Radiation
C. Transfer of thermal energy by movements of a
fluid (gas or liquid)
Identify the method of heat transfer: Conduction (CD), Convection (CV), Radiation (R).
_____R_______21. Microwave
_____CD______22. Frying egg in skillet.
_____CD______23. Hair Straightener
_____CV______24. Hot Air Balloon
_____CV______25. Air Popcorn Popper
_____R_______26. Car getting hot sitting outside.
_____CV______27. Lava Lamp
_____CV______28. Movement in earth’s mantle causing plates to move.
_____R______29. Roasting marshmallows by a fire.
_____CD_____30. Metal spoon sitting in hot soup.
Fill in the blanks with the correct word.
31. Thermal energy always flows from __HOT_________ to ___COLD___________.
32. The sun transfers heat to the earth through __RADIATION___________________________.
33. ___SOLIDS___________ cannot transfer heat through convection because they do not have
___FLUID_____________ motion.
34. Copper is used on the bottom of pots and pans because it is one of the best
__CONDUCTOR___________________ of heat.
Cool Times
B
35. At what point, (A, B, or C), is
thermal equilibrium reached in the
Cool Times lab? _____C_________
C
A
36. Explain what is happening to the
thermal energy in the hot beaker
compared to the thermal energy in
the tap water beaker, according to
the graph. Thermal energy of the
hot beaker is decreasing while
the thermal energy of the tap
water beaker is increasing.
37.
38.
39.
40.
What is it called when one form of energy changes to another form of energy?
Energy Transformation
What energy transformation happens when you turn on a light?
Electrical to Light
What energy transformation occurs when wood is burned in a fireplace?
Chemical to Thermal
What energy transformation happens in a battery powered toy car?
Chemical to Mechanical Kinetic
41. Directions: Match the energy transformation to its example. May be used more than once or not at all.
__G___ 1. Turning on the lights in the classroom.
__A___ 2. An electric space heater.
__E___ 3. Battery operated remote controlled car.
__C___ 4. Nuclear power plant providing energy for a
community.
__E___ 5. Driving your ethanol powered car.
__H___ 6. Plants producing sugar and oxygen by
photosynthesis.
__B___ 7. A hydroelectric dam producing energy for a
town.
__E___ 8. Eating a banana and then going for a walk.
__I___ 9. Burning wood in a fireplace.
__F___ 10. Playing the guitar.
__D___ 11. Using a solar powered calculator.
A. Electrical to Thermal
B. Mechanical to Electrical
C. Nuclear to Electrical
D. Radiant to Electrical
E. Chemical to Mechanical
F. Mechanical to Sound
G. Electrical to Radiant
H. Radiant to Chemical
I. Chemical to Thermal