Types of Energy
Energy is measured in ______
Joules
What does the acronym MELTS stand for?
Mechanical
Electrical
Light
Thermal
Sound
This is stored energy.
potential energy
Energy can not be created or destroyed, only changed into a different form of energy. This is known as _______
the law of conservation of energy
The sun heating earths surface is an example of what type of heat transfer
Radiation
What do we call fuel sources such as coal, oil, and natural gas?
Nonrenewable energy sources
Which of the following is not a type of potential energy?
Gravitational, Elastic, Chemical, Thermal
Thermal
Force = Mass X _________
Distance
this form of energy cooks food in boiling water
thermal/heat energy
When is the kinetic energy the greatest on a roller coaster?
At the fastest speed
Thermal energy flows from _____ to ______
warm to cold
When you put gas in a car, ________ energy is being transformed into ___________ energy.
Chemical, Mechanical
What happens to the potential and kinetic energy as a ball rolls down a ramp?
Potential energy is converted to kinetic energy
This type of energy is present in a battery.
Chemical Potential energy
This is the energy of motion.
kinetic mechanical energy
How can a roller coaster gain potential energy?
Go higher
The top of the pool water is warmer because of
convection
Energy created from the fusion or breaking of atoms.
Nuclear energy.
Microwaves, X-rays, and radio waves are all examples of this kind of energy. Also contains visible light energy.
Electromagnetic energy.
This type of energy is present when you pull on a rubber band
Elastic potential energy
Fill in the missing energy conversion: Light bulb: electrical energy---> ____ and ____ energy
What is light and thermal energy?
A hair dryer transforms _______energy to _____ & ________
electrical to sound and heat
Touching a hot stove is an example of what type of heat transfer?
Conduction
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
List 2 things that are different between chemical and nuclear energy.
Nuclear energy has more energy
Chemical energy is stored between atoms as bonds
Nuclear energy is stored in the nucleus of an atom
music coming from the radio, your loud vacuum cleaner, people talking on tv are all examples of this type of energy
sound energy
Gas particles have the most ______ and move the _____.
energy, fastest
Fill in the missing energy conversion: Battery: _____ energy ----> electrical energy
What is chemical energy?
Hot air rising and cool air sinking is an example of what type of heat transfer
convection
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 has a greater impact on Kinetic Energy; mass or speed and why?
Speed, because the velocity is squared in the formula to solve for KE.