Energy Flashcards
____________ is the ability to cause change and do work.
Energy
The sun provides ___________ and ___________.
light; heat energy
There forms of energy are: 1. 2. 3. 4.
- sun
- water
- wind
- nuclear
Solar power is energy from the ______.
sun
Wind energy uses _____ to do the work.
wind
Water energy comes from ________ water.
moving
Fossil fuels are fuels that formed from decayed _________ and _________ that lived long ago.
plants; animals
Four examples of fossil fuels are: 1. 2. 3. 4.
- Coal
- Oil
- Natural gas
- Wood
Nonrenewable resources have a ________ amount of energy.
limited
Renewable resources have energy that can be ___________.
renewed (or restored)
Three examples of renewable energy are:
1.
2.
3.
- sun
- water
- wind
Potential energy is ________ energy.
stored
Kinetic energy is the energy of ________.
motion
What is the flow of energy from one place to another?
electricity
What kind of power comes from a fuel called uranium?
nuclear power
What is the source of almost all energy on Earth?
Sun
What are two renewable resources that can be used to generate electricity?
- wind (moving air)
2. flowing water
Wood comes from _______.
trees
Wood has many important uses including its use as ______.
fuel
The formation of fossil fuels takes __________ of years.
millions
Renewable energy means energy that can be __________. They can be made ________.
replaced. again.
Nonrenewable resources means that once they are used up, they are gone and ________________ or ________.
cannot be replaced or made again.
What is an example of wind as a natural energy?
windmills
What is an example of sun as a natural energy?
solar panels for energy in a home
What is an example of water as a natural energy?
watermill (sawmill)
Name an advantage of using natural energy sources?
You can replace/restore them when they are used up.
Name a disadvantage to using natural energy sources?
Birds can die in windmills.
Plants use energy from the sun to __________.
make food
Light, sound, and electricity are forms of _______.
energy
People get the energy they need to move their bodies from _________.
food
The movement of electric charges from one place to another is called _____________.
electric current
People can make their supplies of coal and oil last longer by using ________________.
less electricity
Some power plants use the energy produced by coal or oil to make _____________.
electricity
Objects that are made of metal are good _________.
conductors
A tool that measures temperature is a ___________.
thermometer
A magnet attracts metal objects is made out of _________.
metal
__________ poles of magnets repel each other.
Unlike
Nonrenewable resources take ___________ of years to make.
millions
Fossil fuels are nonrenewable fuel found _________ in the earth.
deep
Examples of fossil fuels are ______, ________, and ___________.
coal, oil, and natural gas
Wind energy isa renewable energy source that uses the wind to turn _______ to make electricity.
turbines
Electricity can be made in many way and can be made from ___________ and _________ energy sources.
renewable and nonrenewable
What a natural resource?
Resource that we get from nature. They happen naturally and include sunlight, water, and wind.
What is a renewable resources?
Resources that can be replaced.
What is a nonrenewable resource?
Resource that cannot be replaced. Once they are used, they are gone.
What is a fossil fuel?
They are formed over millions of years ago by decaying plants and animals buried in layers of rock. Fossil fuels include coal, oil, and natural gas.
