Important Stuff
What is energy?
The ability to do cause change or do work.
This is how fast something is going.
Speed
"Hydro" means.....
Water
This type of energy is all about movement. It can be both potential and kinetic energy.
Mechanical Energy
There are three ways heat can transfer. What are they?
Radiation, convection, and conduction
This is the line an object follows when it is moving.
Direction
We can use hydropower and wind power to create what kind of energy?
Electrical Energy
This type of energy is also known as heat energy. This energy transfers by conduction, convection, or radiation.
Thermal Energy
The slower the vibration, the __________ the pitch of the sound is.
Lower
How do we calculate speed?
Distance divided by time
Why is hydropower and wind power considered renewable?
We will not run out of water or wind.
This energy is what powers our homes, charges our electronics, keeps the light on, and so much more. We can get this energy from wind, water turbines, and other sources.
Electrical Energy
Ms. Stuckey puts ice cubes in her coffee. How does the heat from the coffee travel?
The heat goes from the coffee to the ice cube until they both become the same temperature.
When something is in motion, 1.)__________ always changes, and 2.)_____________ sometimes changes.
1. Position
2. Direction
Why is hydropower and wind power considered CLEAN energy?
No fuel is burned, so the air is not polluted.
A form of energy that travels in waves. It can be heard. These waves are created by vibrating objects that cause air molecules to vibrate too.
Sound energy
Bob put his pizza in a special container to keep it hot while he drove to his friend's house. What is the container doing?
Keeping energy from flowing out of the container.
It took 8 hours for Ms. Stuckey to drive 480 kilometers. How was was she going?
480 divided by 8 = 60 kilometers per hour
The water and wind push something that powers a generator to make electricity. What is it?
Turbine
A form of energy that travels by electromagnetic radiation. It can be seen. The sun produces this type of energy.
Light energy