Kine-
matics and Dynamics
matics and Dynamics
idea that a body speeds up as it falls with an acceleration of 9.8 m/s^2
Free fall/ acceleration due to gravity
Anything in the universe that takes up both space and volume
Matter
Net force acting towards the center which causes the object to move in a circular path
Centripetal force
Causes the particles over which they pass to vibrate at right angles to the direction in which the waves are moving
Transverse waves
amount of work needed to eject photoelectron
Work function
A force that is applied to a vector sum of forces not equal to 0 in order to produce an equilibrium
Equilibrant
sum of magnitudes and direction
resultant
Is equal to the potential energy plus the kinetic energy plus the “lost energy“ of the system
Total energy
When light rays fall upon certain objects and cause the atoms in the object to emit electrons
Photoelectric effect
Work done per unit of charge as a charged particle is moved between the points
Potential difference
when 2 objects collide and move together as one mass
Inelastic collision
amount of resistance an object has to motion
Inertia
Orbit around the earth with an orbital period matching the earth’s rotation
Geosynchronous orbit
Ratio of speed of light in air/vacuum to its speed in a substance
Absolute index of refraction
circuit where there is more than one path for the current to flow
Parallel circuit
study of describing motion vs study of forces that cause motion
Kinetmatics vs dynamics
process of finding the vector components of a resultant vector
vector resolution
Where energy input is equal to energy output
Ideal machine
When phase difference between 2 waves is constant
Coherent light
Microscopic magnetic region composed of a group of atoms whose magnetic s fields are aligned in a common direction
Domain
Measure of how hard it is to stop a moving body
Momentum
states that force of the spring is equal to the spring’s constant times the change in spring length from rest
Hooke‘s law
percent of work that is returned as useful output
Efficiency
occurs at angles greater than the critical angle in which there is no transmission at all
Total internal reflection
Charging process in which a neutral object is attracted to a nearby charged object but does not touch object
Charged by induction