CAPT Physical Science Review, part 1

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Welcome! CAPT Physical Science Review, part 1

• In the next few pages, you will review the
  following concepts
• Independent vs. Dependent Variable
• Energy Energy Transformations

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Independent vs. Dependent Variable
Variable
"I" Change it
"Depends" on what I change
This is what I alter during the experiment
This is usually what I Measure as the Results
Practice
If I want to determine what amount of sugar in my
water would give me the fastest time to run 3
miles...
What would the Independent Variable be?
What would the Dependent Variable be?
What if anything was Controlled?
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Independent vs. Dependent Variable
Variable
"I" Change it
"Depends" on what I change
This is what I alter during the experiment
This is usually what I Measure as the Results
Practice
If I want to determine what amount of sugar in my
water would give me the fastest time to run 3
miles...
What would the Independent Variable be? Amount of
Sugar
What would the Dependent Variable be? Fastest time
What if anything was Controlled? The distance the
runners run (3 miles)
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Beverage vs. Time
Which Variable Goes Where on the Graph?
Dependent Variable
Time (min)
Amount of Sugar
Independent Variable
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What is Energy?

• Energy is the capacity to DO some sort of WORK
• Some Types of Energy are
• Solar (sun)
• Electrical
• Nuclear
• Wind
• Hydroelectric
• Chemical (fossil fuels)

What are Fossil Fuels ?
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Renewable Energy
Non-Renewable Energy
vs.
Let's Sort These Move each to the left or to
the right Solar (sun) Electrical Nuclear Wind Hy
droelectric Chemical (fossil fuels)
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Renewable Energy
Non-Renewable Energy
vs.
Solar (sun) Electrical Nuclear Wind Hydroelectri
c Chemical (fossil fuels)
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Energy Transformations
When one type of energy is changed into another
type of energy
Examples - Solar Energy is converted into
electrical energy - Electrical Energy is
converted into light and heat energy
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Heat / Energy Transfer
Heat is transferred through Direct Contact
Heat is transferred through Water or Air
(Metal to the Hand)
(Flame through Air to Metal, through metal to
Water)
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Solar Cooking / Heating
How can solar energy be collected for use in
cooking?
How does this relate to the Geenhouse Effect ?
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Solar Cooking / Heating
How can solar energy be collected for use in
cooking?
2. Solar energy needs to be trapped inside the
cooker and transferred to the object
1. Solar energy is attracted using some colored
background
How does this relate to the Greenhouse Effect ?
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Review
To review what you have learned, fill in the
table below with either the term or the
definition
TERM DEFINITION
ENERGY
SOLAR, FOSSIL FUELS
RENEWABLE
NOT REPLENISHIBLE
TRANSFORMATION
CONDUCT, CONVECT
SOLAR COOKER

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Review
To review what you have learned, fill in the
table below with either the term or the
definition
TERM DEFINITION
ENERGY ABILITY TO DO WORK
MANY FORMS OF ENERGY SOLAR, FOSSIL FUELS
RENEWABLE CAN BE REPLENISHED
NON-RENEWABLE NOT REPLENISHIBLE
TRANSFORMATION CHANGE TYPE
HEAT TRANSFER CONDUCT, CONVECT
SOLAR COOKER COLLECT TRAP SOLAR HEAT