Motion
the rate at which an object travels a distance
What is speed?
an atractive force that exists between all objects that have mass
What is gravity?
The ability to do work
What is energy?
a wave that requires a medium through which to travel.
What is a mechanical wave?
Stationary object used for comparison to measure motion
What is reference point?
9.8 m/s^2
What is free fall?
Stored energy.
What is potential energy?
The number of wave crests that pass a point during one second; expressed in hertz
What is frequency?
Speed that does not change over time
What is constant speed?
the force that opposed motion between two surfaces in contact with each other
What is friction?
The law of conservation of energy
Energy cannot be created nor destroyed; only transferred
light that passes thru filters that force it to vibrate in only one direction
What is polarized light?
Speed of an object at a specific moment in time
Instantaneous
What is air resistance?
786 watts of power
What is horsepower?
the rate at which a wave's energy flows thru a given area
What is sound intensity?
Motion based on a reference point used for measurement
what is relative motion?
The resistance of an object to any change in its motion
What is inertia?
The six major form of energy
What is thermal, mechanical, electrical, chemical, electromagnetic, nuclear energy?
The change in frequency or wavelength of a wave in relation to an observer moving relative to the wave source.
What is the doppler effect?