ENERGY
What is energy?
The ability to do work
to change into something else
What is what does the word "TRANSFORMATION" mean?
What is a renewable resource?
An energy source that is replaced continually
What is a nonrenewable resource?
An energy source that is used up faster than it can be replaced
What is the biggest animal in the world?
The blue whale
What is the energy an object has when its in motion?
Kinetic energy
State the energy transformation of a steam iron
In the iron, electrical energy is used, and it is transformed into heat energy.
It transforms radiant energy directly into electrical energy
How does a photovoltaic cell work?
Name 3 fossil fuels
Coal, oil and natural gas
What is No 1 artist on Spotify
Taylor swift
What is the energy that stored that depends upon the relative position of various parts of a system?
Potential energy
What does The Law of Conservation of Energy state?
Energy can neither be created nor destroyed - only converted from one form of energy to another.
What are two advantages of nuclear energy?
1. is makes fossil fuels last longer
2.they produce almost NO air pollution
3. High power output
What are two disadvantages of nuclear energy?
1. uranium is nonrenewable 2. it produces nuclear waste
You walk onto a bridge you see a boat full of people but there is not a single person on it. How is that possible?
They were all married
What is the connection between kinetic energy and speed?
The faster something moves, the more kinetic energy it has
What machine turns a generator to make electricity?
A turbine
Which of the following is a renewable resource?
a. water b. coal c. oil d. natural gas
a. water
What three things change the plant molecules in fossil fuels into coal molecules?
Time, heat , pressure
describe at least 3 way we could conserve energy
1. Turn off the lights when we aren't using them
2. drive cars less
3. close windows and doors when its cold outside
What stored chemical energy that your body uses?
Food
Where does the electrical energy in an electrical outlet come from?
Power plants
Explain how hydroelectric power is generated
The potential energy of water trapped behind a dam can be transformed into electrical energy
What is geothermal energy?
The heat made inside the earth
Why are windmills placed on top of mountains, instead of between them?
If they were between the mountains, the wind would be blocked and the windmills would not move