Vocabulary
the ability to do work
energy
The biggest source of light energy
sun
Name two factors that effect static electricity.
Distance and Strength of Charge
Energy can not be lost or destroyed, only _______ into a different form of energy
changed/converted
the energy that comes from a substance whose molecules are vibrating faster due to a rise in temperature.
heat or thermal energy
The energy of motion
mechanical energy
If you imagine a drop of water about to fall down a waterfall, at the top of the waterfall the drop of water has this kind of energy.
Potential Energy
this form of energy cooks food in boiling water
thermal/heat energy
a light bulb converts electrical energy into which of the following energy?
light only
heat and light
heat only
light and motion
heat and light
Energy that is the SUM of kinetic and potential energy
Mechanical Energy
______ energy is the only source of energy we can see.
Light Energy
In 5 words or less, what is our Unit Challenge Scenario.
"Off-the-Grid"
What has a greater impact on Kinetic Energy; mass or speed?
Speed
How can a roller coaster gain potential energy?
Go higher
Calculate the Potential Energy of a ball that weighs 8 kg and is about to fall from a 10 meter high building. (use 10 m/s) for your gravitational constant.
800 Joules
What two factors affect magnetic forces
Distance and strength
What energy CHANGE takes place when someone plugs a radio into an electrical outlet?
light energy changes to sound energy
sound energy changes into electrical energy
electrical energy changes into sound energy
chemical energy changes into sound energy
Electrical energy changes into sound energy
Both of these types of energy produce "waves" and are a part of our bodies' senses. Some examples are your tv, and your phone
Sound & light energy
A hair dryer transforms _______energy to _____ ,________, & ________
electrical to mechanical, sound, and heat
What are the types of energy and the equations for calculating each.
Kinetic Energy= 1/2 m v*2
Potential Energy= mgh
The Law of Conservation of Energy states that energy is never created or destroyed, it is only ________ from one form to another.
changed
music coming from the radio, your loud vacuum cleaner, people talking on tv are all examples of this type of energy
sound energy
Energy at rest is what kind of energy?
potential energy
A ball has a mass of 2kg and is being thrown at a speed of 10 m/s. What is the ball's Kinetic Energy in Joules?
100 joules
What does the acronym MELTS stand for?
Mechanical
Electrical
Light
Thermal
Sound