Law of Conservation of Energy
Waves
Thermal Energy
Electricity
Miscellaneous
100
This is what the law of conservation of energy states
What is that energy can't be created or destroyed - only transformed from one form to another
100
This is the term given for the height of the wave from the line of origin
What is amplitude
100
These are the names of the three methods of heat transfer
What is radiation, conduction and convection
100
These are the type of subatomic particles moving through a wire, when there is an electric current passing through
What is electrons
100
This is the type of circuit that require current to flow through all of the devices in ONE path
What is a series circuit
200
This is why a roller coaster can never have a hill higher than the first (without the aid of a motor)
What is because some of the initial potential energy of the roller coaster was lost as sound and heat energy throughout the ride
200
This is the term given for how many waves pass a given point in one second
What is frequency
200
This is how the heat of the Sun reaches the Earth's atmosphere
What is through electromagnetic waves of radiation
200
This is what happens to the circuit when you flip the switch and turn on the lights
What is "the circuit is closed"
200
This is what happens to all of the lights in a parallel circuit if one path has a break in it
What is nothing....the other bulbs continue to work
300
This is another term we give to unwanted forms of energy that leave a system
What is dissipated energy
300
This is the different between mechanical and electromagnetic waves
What is mechanical waves are often longitudinal, need a medium (matter to travel through)...examples are sound, oceanic, some seismic waves Electromagnetic waves are transverse, can travel through empty space and examples are light, gamma, x-rays, radio, microwaves
300
This is why heat moves more easily through materials like metals than a substance like styrofoam
What is because metal is a conductor. The particles are close together, allowing for the flow of energy to move quickly through them through conduction
300
This is the unit that the electrical potential energy of an object (such as a battery) is measured in
What is volts
300
This is the type of energy transmitted by vibrations of air
What is sound?
400
This describes what happens to matter and energy within an open system
What is both matter and energy can enter and exit the system
400
This is what happens to the energy of a wave if the frequency is changed
What is if frequency is increased, energy also increases but if frequency is decreased, then energy also decreases
400
This is what will happen If a piece of metal at 93 degrees touches a piece of metal at 62 degrees
What is energy will flow from the hotter metal to the cooler metal
400
This is what happens to the electrical current when resistance is increased
What is the current is decreased
400
These are the energy transformations that occur when a car battery causes a car's headlights to shine
what is chemical energy to electrical energy to radiant energy
500
This describes the energy transformations that occur in a roller coaster as it climbs and descends the first hill
What is: 1.) as it climbs the first hill it gains potential 2.) at the top of the hill it has maximum potential energy 3.) As it descends the hill the potential energy is gradually transformed into kinetic energy 4.) at the bottom of the first hill it has maximum kinetic
500
This is the formula used for calcuating the speed of a wave
What is frequency x wavelength
500
This is why the statement "There is no such thing as ‘cold.’ There is just the absence of heat.” is true
What is because all things have thermal energy. The "hotter" the object, the more thermal energy it has....the cooler the object, the less thermal energy it has. Thermal energy is the total amount of kinetic energy of an object.
500
This is the sort of energy that the movement of windmills transform into electrical energy?
what is mechanical energy?
500
These are two advantages and two disadvantages to hydroelectric energy
What is Advantages: renewable no pollutants emitted into atmosphere can be used world wide Disadvantage: thermal pollution (heat added to water) impact the mobility of fish and other riverlife alter aquatic habitat can cause flooding of land can limit water flow downstream initial expense
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