Convection
Convection happens in _______
fluids (gas and liquid)
•Energy is transferred within an object or between objects that are________
Touching
What is emitted from the surface of an object due to the objects temperature
Radiation
Energy conversions is also called _____
Energy Transformations
Letting go of a stretched spring
_____ energy to _____ energy
potential to kinetic
In a convection current what _____ fluids rise and ____ fluids sink
Hot Rises and Cold Sinks
What happens when faster moving particles bump into slower moving particles?
Makes the slower particles move faster
True or False... Waves need matter to travel
false
•In a light bulb, ______ energy is converted to heat and ____ energy
electrical
light
A bike coasting up a hill
_______ energy to ______ energy
Kinetic to Potential
hot fluids have particles that are moving faster & more spread out, therefore LESS _______, so they rise.
Dense
materials that transmit (conduct) heat (or electricity) easily
Conductor
•Waves transfer the energy through matter or __________
empty space
What is the definition of Energy Conversions
•Is the changing of one type of energy into another
A windmill used to make electricity
____ energy to ____ energy
Mechanical to Electrical
When does a sea breeze occur?
Daytime
materials that do not transmit heat (or electricity) easily
insulator
Three examples of radiation
Sun heating the Earth
Fire warming your hands
Heat coming from a light bulb
Space heater emitting heat warming the air around it
Your body giving off heat
body converts (transforms) _______ energy stored in food into Kinetic and _____energy
Chemical
Heat
Battery Powered Flashlight
_____energy to _____energy to_____ energy
Chemical to Electrical to Light and Heat
When does a land breeze occur? Where does the breeze come from?
Night
Cooled land
3 Examples of good insulators
Rubber, wood, plastic, fabrics, Styrofoam
Radiation does not require matter but ____ and ____
convection and conduction
Photosynthesis is ____ energy transforming to _____ energy
Light to chemical
Using gasoline to power an automobile
_____ energy to _______energy, _____energy, and _____ energy
Chemical to Heat, Sound and kinetic