Energy Efficiency
How we behave when we use energy (term)
Energy Conservation
Path the electric current travels on
Electric Circuit
Direction of heat transfer
Hot to Cold
The energy an object has due to its motion
Kinetic Energy
When an energy form moves from one object/place to another object/place
Energy Transfer
What is an example of energy efficiency?
answers vary - LED light instead of incandescent bulb
Material that allows heat and electricity to pass through it
Conductor
Material that does NOT allow heat and electricity to pass through it
Insulator
Energy of an object due to its high position compared to its low position
Gravitational Potential Energy
Whenever there is a transfer or transformation of energy, some of the energy is always "lost" as what?
Thermal Energy
Energy source that is replenished in a short period of time
Renewable Resource
The flow of electric charge around a circuit, flowing from the negative to the positive terminal of the battery
Electric Current
What type of heat transfer occurs when you sit next to a campfire?
Radiation
Energy carried through substances in waves
Sound Energy
What is a real world example of an Energy Transformation?
Answers may vary- possible answer when electric current flows to a lamp, causing the light to turn on
Over the last few decades, what has happened to renewable energy use?
it continues to rise as people are becoming more energy conscious
A closed circuit with only one path for the current to flow through
Series Circuit
Transfer of thermal energy by heating a fluid (such as air or water), then circulating the fluid
Convection
These 2 things affect how much potential energy an object has
the height and mass of the object (the higher up and more massive an object, the more of this it has)
What is a real world example of an Energy Transfer?
Answers may vary- possible answer is a ball rolls down a hill and hits a box, causing the box to move
To get the most out of a device, what do you need to try to reduce?
the amount of thermal energy that is given off as heat
Three light bulbs are hooked up in parallel. When one goes out, what happens to the others?
The other bulbs stay lit
What is an example of a Convection heat transfer?
Answers may vary- possible example hot air rising in a hot air balloon, causing the air balloon to rise
These two things impact the amount of Kinetic energy an object has
The mass and speed of the object (the more massive and faster the object is, the more of this it has)
Recite the Law of Conservation of Energy
Energy cannot be created or destroyed, only transformed or transferred from one place to another (change form)