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Types of Energy
Energy Transfer
Energy Transformation
Heat Transfer
Where Energy Comes From
100
This type of energy produces heat.
Thermal Energy
100
What is energy transfer? (The definition)
Energy moving from one place (or object) to another place (or object).
100
What is energy transformation? (The definition)
When energy is changing forms...or when energy changes from one type of energy to another.
100
Does heat travel from hot to cold objects or from cold to hot objects?
Hot to cold objects
100
Where is solar power found?
The Sun
200
This type of energy produces light.
Electromagnetic Energy
200
In class, we dropped a bouncy ball from 60 inches off the ground. Why did the bouncy ball not bouce back up to 60 inches? (Be specific!)
The energy from the bouncy ball was transferred to the ground.
200
Becky was exercising on her treadmill and became warm. In order to cool off, she turns on a fan. Identify the correct energy transformation as she plugs in the fan and turns it on.
Electrical --> Mechanical
200
A material that speeds up the passage of heat or electricity is called a(n)...
Conductor
200
Hydropwer is made through the water cycle. How can dams be used to produce energy?
Water flows through a pipe and turns the blades in a turbine to spin a generator to produce electricity.
300
This type of energy is made from compression waves.
Sound Energy
300
You swing a golf club and hit a golf ball. Mechanical energy is transferred in this process. The transfer is from...
Your arm to the golf club to the golf ball.
300
This type of energy transformation occurs when you are burning something.
Chemical --> Thermal/Electromagnetic
300
A material that slows down the passage of heat or electricity is called a(n)...
Insulator
300
How can propane be used to produce energy? (According to your chart.)
It can be used to heat homes, heat water, cook food, and dry clothes.
400
A moving car, flowing water, and a thrown football all contain this type of energy.
Mechanical Energy
400
List one way energy can be transferred in a basketball game. (Be specific! I need to know the activity, the energy type, where it is starting, and where it is ending up.)
Example: Kinetic energy is moving from your hand to the basketball when you are dribbling.
400
Luke places new batteries in his CD player and turns it on. Identify the correct energy transformation. (Think about why type of energy is inside batteries.) (Hint: There are two transformations occurring.)
Chemical --> Electrical --> Sound
400
What two states of matter does convection occur in?
Liquids and gases
400
How can coal be used to produce energy?
Power plants burn coal to make steam. The steam turns turbines that generate electricity.
500
The Sun and a power plant are examples of what type of energy?
Nuclear Energy
500
What type of energy is being transferred through power lines when you plug a cord from a lamp into an outlet?
Electrical Energy
500
Explain the energy transformation that occurrs when a pencil falls off a table.
Potential (when the pencil sits on the table) --> Kinetic (when the pencil falls to the ground)
500
What is the main difference between conduction and radiation?
Conduction requires direct contact in order for the heat to be transferred. Radiation does not require direct contact in order for the heat to be transferred.
500
Hydrogen is a naturally occurring element found in the Earth's crust. How can hydrogen be used to produce energy?
Radiant energy from the Sun (which is a ball of hydrogen and helium gas) is provided to the Earth. It can also be used to create electricity.