What is Energy?
Forms of Energy and Energy Transformation
Energy and Fossil Fuels
Thermal Energy and Heat
Random
100
This is the ability to do work or cause change.
What is energy?
100
This is the process in which one form of energy transforms to another.
What is energy transformation?
100
Coal, petroleum and natural gas are examples of . . .
What are fossil fuels?
100
These are the three states of matter
What are solid, liquid, and gas?
100
Silver and steel are examples of good . . .
(hint: they transfer thermal energy easily)
What are conductors?
200
These are the two main types of energy.
What are kinetic and potential energy?
200
You can find an object's mechanical energy by . . .
You can find an object's mechanical energy by adding the object's kinetic energy and potential energy.
200
Almost all energy on Earth ultimately comes from . . .
the Sun
200
Car engines are examples of . . .
What are internal combustion engines?
200
The scale on which 100 is equal to the boiling point of water is:
What is Celsius?
300
This is a measure of work done (or energy transferred) and the time it takes to do it.
What is power?
300
Visible light is an example of this kind of energy.
What is electromagnetic energy?
300
This is the fossil fuel that the steam engine is powered by.
What is coal?
300
A spark plug ignites the mixture in a cylinder of an engine. The heated gas expands and pushes the piston down. The piston move of the crankshaft. This is the _____ stroke in a four-stroke engine.
What is the power stroke?
300
The scale which shares an equal rate of change with Kelvin is . . .
What is Celsius?
400
Sound waves and heat have this kind of energy.
What is kinetic energy?
400
Batteries have _____ ______ energy.
Batteries have potential electrical energy.
400
Steam powers this part of a coal-fired power station.
What is the turbine (connected to an electrical generator)?
400
The scale on which 0 is equal to absolute zero is . . .
What is the Kelvin scale?
400
This type of vaporization occurs on the surface of a liquid.
What is evaporation?
500
Changing the _____ of an object will have a greater effect on its kinetic energy than changing its _____ by the same factor.
Changing the velocity of an object will have a greater effect on its kinetic energy than changing its mass by the same factor.
Kntic Engy = 1/2 times Mass times Velocity^2
500
Moving electric charges (as in the case of lighting bolts) are an example of this kind of ____ _____ energy.
What is kinetic electrical energy?
500
This place was around when coal was formed.
What is Pangea?
500
Heat engines transform thermal energy to . . .
What is mechanical energy?
500
1 joule per second is also known as a . . .
What is a watt?
600
These are the four things we need to know about a skydiver to determine his potential and kinetic energy.
What are his weight, height (GPE), mass, and velocity (KE)?
600
______ ______ is the splitting of atomic nuclei, which causes catastrophic explosions.
What is nuclear fission?
600
List the energy transformations that occur at a coal power plant. There are 3.
1. Chemical (potential) - Thermal
2. Thermal - Mechanical
3. Mechanical - Electrical
600
These are the two kinds of vaporization.
What are boiling and evaporation?
600
If you want to know the amount of heat needed to raise the temperature of 2kg of steel by 10 C, you need to know the steel’s:
What is specific heat?