Kinetic Energy
Potential Energy
Conversion of Energy
Mechanical Waves
Vocab.
100

As mass decreases, kinetic energy __________.

decreases

100

Energy that is stored is ________ energy

potential 

100

According to the law of conservation of energy, ________ can't be created or destroyed.

energy

100

the bouncing of a wave off a surface

reflection

100

the sum of the potential energy and the kinetic energy in a system.

mechanical energy

200

Compared to a battery or water in a reservoir, a moving car has this _______________.

kinetic energy

200

Differences in gravitational potential energy depend on an object's _________.

mass and height

200

mechanical energy = kinetic energy + potential energy

kinetic energy + potential energy

200

the passage of a wave through a medium

transmission

200

the transfer of energy to an object by a force that makes an object move in the direction of the force.

work

300

Kinetic energy is the energy of ________.

motion

300

A kite stuck in a tree has potential energy due to its __________.

position

300

When you put on the brakes of a bicycle, friction causes some of the mechanical energy to transfer to __________ energy.

thermal

300

the change in direction of a wave when it travels by the edge of an object or through an opening

diffraction

300

energy is always transferring from one form to another

law of conservation of energy

400

A dump truck, a sports car, and a bicycle are traveling at the same velocity. The bicycle has the least amount of kinetic energy due to it's lack of ________. 

mass

400

If an object is on top of a hill or in a position raised above the ground, it must have ____________. 

gravitational potential energy 

400

When two surfaces interact, some mechanical energy leaves the system as thermal energy due to ________.

friction

400

Sound travels fastest through this state of matter, due to the particles being packed in tightly. 

solids

400

the transfer of energy by a wave to a medium though which it travels.

absorption

500

The kinetic energy increases by the _______ of the same factor as the speed increase.

square

500

A stretched rubber band has this type of energy.

elastic potential energy

500

) In every energy transformation, some energy is always “______” as thermal energy

lost

500

Unlike gases, when solids cool, sound travels _______.

faster

500

Mechanical waves that energy source is parallel to the motion of the wave is longitudinal waves (like sound waves). 

What is the name of the wave that is perpendicular to the waves direction?

transverse waves