Vocabulary
Energy Forms
Energy Conversions
Energy Resources
100
The energy of an object that is due to it's motion.
What is kinetic energy?
100
The energy that is caused by an object's vibrations.
What is sound energy?
100
What is an example of elastic potential energy?
When a rubber band is wound up it has elastic potential energy.
100
Define nonrenewable resource.
A resource that forms slower than the rate at which it is used.
200
Define Potential Energy.
What is the energy an object has because of the position, shape, or condition of the object?
200
The energy of moving electrons.
What is electrical energy?
200
True or False - A paper airplane flying through the sky is an example of an energy conversion.
FALSE! The paper airplane only has kinetic energy because it is moving. There is no change taking place.
200
A nonrenewable energy resource formed from the remains of organisms that lived years ago.
What are fossil fuels?
300
A change of energy from one form to another.
What is energy conversion?
300
What is chemical energy?
Chemical energy is the energy of a compound that changes as its atoms are rearranged, i.e. when we eat food it starts out as one thing, breaks down in our stomach, and changes to a new thing.
300
Give an example of an energy conversion that takes place when eating food.
When someone eats food, the food changes into chemical energy, which is then changed into kinetic energy when we exercise, and then thermal energy to maintain our temperature..
300
Coal is an example of this type of resource.
What fossil fuels?
400
The process that uses light energy to make new substances that have chemical energy.
What is photosynthesis?
400
Give an example of thermal energy.
Particles move faster in steam than in an ice cube. Thermal energy is created due to the random movement of the particles that make up an object.
400
How is photosynthesis an example of an energy conversion?
Light energy changes into chemical energy - the chemical energy can be turned into thermal energy when someone burns firewood from a tree.
400
Give three examples of renewable resources.
Solar energy, energy from water, wind energy, geothermal energy, biomass.
500
The amount of work an object can do because of it's kinetic and potential energy.
What is mechanical energy?
500
True or false - Nuclear energy comes from changes in an object's electrons.
FALSE! Nuclear energy is the energy that comes from changes in the nucleus of an atom.
500
Give an example of a conversion of electrical energy.
Alarm clock - electrical energy to light and sound energy Battery - chemical energy to electrical energy Light Bulb - electrical energy to light and thermal energy
500
Compare fossil fuels and biomass as energy resources.
Both fossil fuels and biomass come from organic matter, are burned to generate energy, and can cause air pollution. Biomass is renewable while fossil fuels are nonrenewable.
M
e
n
u