Organisms in a Food Chain
food chain, a linear depiction of energy flow, with each organism
feeding on and deriving energy from the preceding organism.
Each feeding level in the chain is called a trophic level
Food chains typically consist of organisms
Chapter 9Elastic Properties of Matter: Stress and Strain
I. Stress and strainMost of the objects we have discussed so far have been
considered to be rigid, as in they do not change shape when responding to
forces, instead they move or rotate. Real objects
Forces and Newtons Laws
I. Newtons First Law: An object in motion tends to stay in motion unless
acted upon by an outside force. An object at rest tends to stay at rest
unless acted upon by an outside force.
a. Objects resist changes to their motion.
Chapter 2: Linear Motion
a. Position/Displacement/Distance(?) (x, y, s)
a.i. Displacement of an object from an identified origin
a.ii. In 1D, can be positive or negative, and is the distance from the origin
along a line.
a.iii. The difference of positions
Momentum, Collisions and Center of Mass
I. Momentum and Impulse
a. Momentum (p)The tendency of an object to maintain its motion.
a.i. Momentum, like energy, is a conserved quantity
a.ii. Momentum can only be changed by the application of a force,
I. Rotational kinematicsthe variables/quantities we learned about before
position, velocity, acceleration, are all linear quantities. There are
angular analogues for all of them.
a. Angular position( )Angular position, which is often sim
Work and Energy
An objects energy is something that quantifies its ability to move or potential to
move. Also defined as the ability to do work.
1.i. Units=Joule (J=N*m=kg*m2/s2), erg (=g*cm2/s2), foot-pound
(ftlb=slug*ft2/s2), and calorie (cal
Vectors and 2D Motion
a. Three trig functions: sine, cosine, tangent
a.iv. If one is interested in , one must use an inverse trig
function like , also known as arc-sine
b. The quadrants of the xy-plane det