~Physics~
Your favorite teacher at Roosevelt.
Mr. Salo
The Geo-sphere is in control of...
The land, crust, and tectonic plates?
Percentage of fresh water on Earth.
2.5%
Newton's First Law of Motion
Objects at rest, must stay at rest.
(An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force.)
Definition of Acceleration.
The change of speed over time.
The Definition of Friction.
The force that results from relative motion between objects.
The Hydrosphere is in control of...
Ice and all water found on Earth
Percentage of salt water on Earth.
97%
Newton's Second Law of Motion
Acceleration of an object must be proportional.
(acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object)
Definition of Cause & Effect.
The relationship between an event that brings a result and what happens due the result
The Formula for Force.
F=ma
The Biosphere is in control of...
the system of life
Aquifer
a body of porous rock or sediment saturated with ground water
Newton's Third Law of Motion
For every action in nature, there is an equal and opposite reaction.
The formula for momentum.
P=mv
The Formula for Acceleration.
A= (Vf - Vi) รท t
The Atmosphere is in control of...
the layers of gases around the Earth
Percentage of Earth covered by water.
71%
The formula for the acceleration of gravity on Earth.
9.8m/s2
Definition of Viscous Friction.
Resistance created by objects moving in water or other fluids.
Velocity is a(n) _______ variable.
Dependent Variable
The Cryosphere is in control of...
the ice caps, glaciers, and frozen water
Ice floats in water because....
ice is less dense than water
Newton's Fourth Law of Motion
Don't electrocute yourself.
Definition of Inertia.
The reluctance of a body to change its state of motion.