
AKS 7 Review
Presentation
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Science
•
9th - 12th Grade
•
Medium
+8
Standards-aligned
Marissa Brown
Used 5+ times
FREE Resource
22 Slides • 29 Questions
1
Energy Transformations
Answer each question and fill in your notes in schoology.
2
Yesterday you learned "2 Types and 4 Forms of Energy"
Types: Potential Energy and Kinetic Energy
Forms of Energy: Thermal, Electrical, Mechanical, and Radiant
Extra Forms of Energy You Saw: Sound, Chemical, Nuclear, Elastic Potential Energy and Gravitational Potential.
3
You also learned the "Law of Conservation of Energy"
***Energy cannot be destroyed, but it can be transformed.***
Today we will look at how energy can change from one form to another.
4
Energy changing from one form to another...
is sometimes called energy conversion or energy transformation.
>>> Any form of energy can change into any other form of energy.
5
Multiple Choice
See the picture. There is electrical energy coming from the outlet in the wall. When the energy goes into the lamp what energy does it transform into?
Mechanical Energy
Thermal Energy
Sound Energy
Light Energy
6
Often one form of energy can change into more than one form.
Chemical-> Heat-> Kinetic-> Electrical-> Heat
7
Multiple Select
When wood burn it changes from chemical energy to what 2 other forms of energy? Click the 2 other forms.
Radiant (Light)
Nuclear
Heat
Mechanical
8
Multiple Select
A gasoline-powered generator is used to provide lighting for a house.
Choose the best 3 energy forms found in this transformation example?
Chemical
Mechanical
Light
Nuclear
9
Multiple Choice
Skateboarder #1 is showing potential energy as he waits at the top of the half pipe.
Skateboarder #2 has dropped into the half pipe, to what type of energy has he converted his potential energy?
Potential
Thermal
Kinetic
Chemical
10
Food is chemical energy used to make the body function.
It is converted into kinetic energy to help the body move
It is also converted into thermal energy to keep the body warm.
11
Energy Conversion in Plants
Chemical energy stored in the food we eat ultimately comes from the sun.
The process is called photosynthesis. Light energy is converted into chemical energy.
12
Energy Conversions are needed in EVERYTHING we do.
(Think of what you do everyday.)
13
Some examples of energy conversions
14
Open Ended
What are the energy conversion for a hair dryer?
15
Open Ended
What are the energy conversions for a radio?
16
REMEMBER: Any form of energy can change into any other form of energy.
***Energy cannot be destroyed, but it can be transformed.***
17
Multiple Choice
A car accelerates along a road as it rises uphill.
Which energy changes are taking place?
kinetic energy - decreasing
gravitational potential energy - decreasing
kinetic energy - decreasing
gravitational potential energy - increasing
kinetic energy - increasing
gravitational potential energy - decreasing
kinetic energy - increasing
gravitational potential energy - increasing
18
Heat

19
Multiple Choice
In a car engine, energy stored in the fuel is converted into thermal energy (heat energy) and energy of motion (kinetic energy).
In which form is the energy stored in the fuel?
chemical
geothermal
hydroelectric
nuclear
20
Multiple Choice
21
Multiple Choice
What is the source of the energy converted by a hydro-electric power station?
hot rocks
falling water
oil
waves
22
23
Multiple Choice
A tidal power station is made by building a barrage across the mouth of a river. At high tide the sea water is trapped
At low tide the water is allowed to flow back into the sea through a turbine. What is the useful energy change in a tidal power station?
electrical energy → energy of position (potential)
electrical energy → energy of motion (kinetic)
energy of motion (kinetic) → energy of position (potential)
energy of position (potential) → electrical energy
24
25
Multiple Choice
The diagram shows a man diving into water.
Which form of energy is increasing as he falls?
chemical
gravitational
kinetic
strain
26
Multiple Choice
27
Multiple Choice
A child pushes a toy car along a level floor and then lets it go. As the car slows down, what is the main energy change?
from chemical to heat
from chemical to kinetic
from kinetic to gravitational (potential)
from kinetic to heat
28
Multiple Choice
Without the sun's heat, what would happen to earth?
aliens would invade
the earth would explode
it would be too cold to survive
29
Multiple Choice
The diagram shows a cyclist riding along a hilly road.
At which position does the cyclist have the least gravitational (potential) energy?
A
B
C
D
30
31
Multiple Choice
What is designed to change electrical energy into kinetic energy?
generator
motor
transformer
electric fan
32
33
Multiple Choice
A power station uses nuclear fission to obtain energy.
In this process, nuclear energy is first changed into
chemical energy.
electrical energy.
gravitational energy.
thermal energy.
34
35
Multiple Choice
A man standing at the top of a cliff throws a stone.
Which forms of energy does the stone have at X and at Y?
energy at X - gravitational potential only
energy at Y - kinetic only
energy at X - kinetic only
energy at Y - gravitational potential only
energy at X - gravitational potential only
energy at Y - gravitational potential and kinetic
energy at X - gravitational potential and kinetic
energy at Y - gravitational potential and kinetic
36
Multiple Choice
What is a conductor?
a material that heat moves through easily
a material that heat does not move through easily
a material that turns cold when heated
a tool for measuring temperature
37
Multiple Choice
Which of these is a better conductor?
38
Multiple Choice
Stir frying vegetables is an example of
Convection
Conduction
Radiation
39
40
41
Multiple Choice
Hot water rises and cold water sinks. Is this:
Convection
Conduction
Radiation
42
43
44
Multiple Choice
45
46
Multiple Choice
Cold Pack on Person
Heat is transferred from the cold pack to the person.
Heat is transferred from the person to the cold pack
The cold pack is getting colder. The person is getting warmer.
47
Specific Heat Capacity Part II
Communicate to explain the applications of specific heat capacity in daily life, material engineering and natural phenomena.

48
Multiple Choice
Large cup (Trenta)
Small cup (Tall)
Medium cup (Venti)
All three are the same temperature so they have the same thermal energy
49
Multiple Choice
Copper
Carbon Steel
Zinc
Stainless Steel
50
Multiple Choice
It requires less energy to change temperature
It requires more energy to change temperature
It heats up very quickly
51
Multiple Choice
Copper
Carbon Steel
Zinc
Stainless Steel
Energy Transformations
Answer each question and fill in your notes in schoology.
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