Definitions
What is energy?
Energy is the ability to do work.
If your town wanted to switch to solar energy, what is something they will need to consider?
Is there enough sunlight?
Is there a way to store the energy in the solar panels at night?
Is there enough room?
What is a reason fossils fuels our primary source of fuel?
They are inexpensive, provide many jobs, release a lot of energy, and in the past have been readily available.
What is the largest dam in the United States?
The Hoover Dam is the largest dam in the United States.
What are the two categories of natural resources?
Renewable and Non-Renewable
What is a negative impact (con) of using wind energy?
Examples:
Many places don't experience wind all the time.
Deforestation from creating a wind farm.
Impact on birds and other wildlife.
What is a negative impact of coal mining?
Example Answers:
Coal is a non-renewable resource
Negative health affects on coal miners
Damage to the Earth's crust
Burning coal releases carbon dioxide
Is a penny an insulator or conductor?
A penny is a conductor.
What is a circuit?
Circuits are circular paths through which electrical currents can travel. The loop must be CLOSED in order for the circuit to function.
What is a benefit of using renewable resources?
They can easily be replenished.
They usually don't require burning.
Improved public health.
Fossil Fuels were formed millions of years ago from.....
Dead plants and animals.
What are the three materials you need in order to power a circuit?
What is Kinetic Energy? Give an example.
Kinetic Energy= Energy in motion.
Examples: A bike or a car in motion, someone running, a soaring baseball
How is energy transferred from kinetic to electrical in hyrdropower?
Hint: Think of the rushing water.....
Energy is transferred from kinetic to electrical by rushing water turning a generator, which sends electrical energy through power lines.
What gas does burning fossil fuels release into the environment? What does this cause?
Burning fossil fuels releases carbon dioxide into the environment, which causes global warming.
What have engineers built to help the migration of salmon when they reach a dam?
Engineers have built fish ladders.
What is Potential Energy? Give an example.
Potential Energy= Stored energy because of its position or state.
Example: An apple on a tree, a ball on the top of a hill, a pulled back sling shot, a rollercoaster before it goes down
What are three examples of renewable energy?
Solar, Wind, Hydropower, Biomass, Geothermal
What are the three examples of fossil fuels?
Coal, oil, and natural gas
What's the difference between insulators and conductors?
Insulators are materials that prevent electricity from flowing through them.
Conductors are materials that allow electricity to easily flow through them.