Impact of Energy Use
Recycled
Our society uses up vasts amounts of renewable sources of energy. what should we do about energy sources in the future?
We will need to find ways to use renewable sources of energy.
Which method of powering a vehicle will help reduce air pollution?
Using biofuels
Kelly is making a solar cell to provide power using a plastic bottle, copper, and salt water. What can Kelly test to make her solar cell better?
How does adding more salt to water improve the solar cell?
A series of steps that engineers follow to solve a problem
Design Process.
Which is not a source of renewable energy?
Fossil fuels
How does using public transportation, like buses and trains, help to conserve fossil fuels?
The fossil fuels used by a bus or train are less than the total amount that would be used if everyone drove their own car. Taking public transportation uses less total fossil fuels.
How does the solar panel solve a design problem?
It transforms energy without producing air pollution.
Suppose you connect a solar cell to the connectors of a light bulb. Which factors would increase the brightness of the light bulb?
Exposure to full sun.
One who designs solutions to problems
Engineers.
Describe a possible environmental coast of extracting oil
Pollution of land/sea because of fracking.
The overuse of fossil fuels leads to ________.
Pollution.
What do a solar panel, a windmill, and a battery have in common? How are they different?
All of these convert energy into electricity. They are different because they convert different types of energy into electricity. A solar panels convert light energy. A windmill converts kinetic energy. A battery converts chemical energy.
An original or first model of something from which other forms are developed
Prototype
What percentage of energy resources used by Americans comes from fossil fuels.
85.2%
Reducing the amount of resources we use, called ____________, will allow resources to be saved for a later time.
Conservation.
Engineers designing a new energy efficient product will make the first model, called a ___________.
Prototype
Something that limits or restricts someone or something.
Constraint