Physical Science Chapter 11

Laws

100

the study of motion

Mechanics

200

The study of how things move

Kinematics

300

Planets move in elliptical orbits around the sun

Kepler's Planetary law #1

400

 A planet covers the same area of space in the same amount of time regardless of the orbit

KPL #2

500

A planet's orbital period is proportional to the size of its orbit

KPL # 3

Dudes

100

This dude said that all objects fall at the same rate in a vacuum.

Galileo

200

This dude made a mathematical model of motion in the 1600s.

Isaac Newton

300

This dude made this theorem.

a^{2 +} b²=c²

^Pythagoras

400

This dude also studied planetary motion in the 1600's.

Tycho Brahe

500

He is credited with the laws of planetary motion and integrated math into these observation including retrograde motion.

Johannes Kepler

Motions

100

Frame of Reference

perspective of motion

200

the total movement of an object

distance

300

Overall distance from the starting point

displacement

400

a measurement without direction that has magnitude

scalar

500

magnitude and direction

vector

More Motions

100

distance an object travels over time

speed

200

speed=distance divided by time

s=d/t

300

the speed of an object at the exact moment

velocity

400

velocity formula

v=x_f -x_i

_{___________}

t_f-t_i

500

3 laws of motion + law of universal gravitation

Classical Mechanics

CH 11 Potpourri

100

the strength of gravity varies in direct proportion to the masses of the objects involved and inversely to the square of the distances between their centers of mass

Law of universal gravitation

200

the rate at which velocity changes

acceleration

300

the total physical energy keeping an object moving

momentum

400

objects at rest remain at rest and objects in motion continue in a straight line at a constant velocity unless acted on by a net external force

AKA Newtons first law of motion

law of inertia

500

defines relationship between acceleration force and mass

and

any time a force acts from one object to another, there is an EQUAL force acting back on the original object

2nd newton law of motion

3rd newton law of motion