PE & KE
Think about the swinging pendulum. This is when there is the most kinetic energy. (Point A, B, or C)
What is Point B?
spoon in hot liquid becomes hotter to the touch
What is conduction?
These are the two types of mechanical waves.
What are transverse and longitudinal?
Waves are generated when a source of ____________ forces the matter in a medium to vibrate.
What is energy?
A(n) _______________ is a disturbance that transfers energy from place to place.
What is a wave?
The two factors that determine the kinetic energy of an object are its ____________ and ____________.
What are speed and mass?
the transfer of energy in a wave or stream of particles
In longitudinal waves, _________________ is when the particles in the medium are close together and _______________ is when the particles are spread apart.
What are compression and rarefaction?
These types of waves do not require a medium and can travel through empty space.
What are electromagnetic?
Cooking food in a microwave
What is radiation?
In addition to distance (height), what is the other factor that determines how much potential energy is in an object.
What is the mass of an object?
the transfer of thermal energy through a gas or liquid (fluid)
Transverse waves move the medium at _____________ to the direction the waves are traveling.
What are right angles or perpendicular?
In longitudinal waves, the particles of/in the medium move ______________ in the same direction the wave is traveling.
What is back-and-forth or parallel to?
Frequency refers to the number of _____________ per second.
What are vibrations?
If an object is falling FROM 100 m, it will have greater ____________ energy than an object falling FROM 80 m.
What is potential?
The law of thermal equilibrium states that heat will always transfer from ___________ to __________; never the other way around.
What is hot objects to cold objects?
The _____________ is where displacement of the medium is at a minimum.
What is the trough?
Mechanical waves only travel through a medium such as _________, _____________, or _____________.
What is a solid, liquid, or gas?
When energy goes from potential to kinetic or from kinetic to potential, it is said to be going through energy ________________.
What is energy transformation?
Think about the roller coaster diagram. Name a point when PE is decreasing and KE is increasing.
What is as it goes down a hill, or as it goes along the downside of a loop?
ocean breeze
What is convection?
The frequency formula for a wave is ________________.
What is speed/wavelength?
Amplitude is measured between peak and rest position or valley and rest position in a(n) _____________ wave.
What is transverse?
In convection, heat energy travels through a(n) ___________. (a liquid or a gas)
What is a fluid?