SAPPECO: Law of Diminishing Marginal Utility

• Natural Motion

• Violent Motion

What are the Greek’s View of the Universe?

Natural Motion

Occurs without the application of force. also known as vertical motion

• Examples

  • Book at rest on the top of the table.

  • Ball dropped from a certain height.

  • Smoke from combustion that naturally rises.

Violent Motion

• Motion that requires the application of force.

• Examples:

  • Pushing a ball across the table

  • Puck a ball and lift it upward.

• Magnitude

• Distance

• Temperature

What are the units under Scalar quantity

• Magnitude w/ direction

• Displacement (m)

• Force

What are the units under Vector quantity

• Diurnal Motion

• Anual Motion

• Precession

What are the terrestrial domains?

Diurnal Motion

• Daily motion of celestial bodies like the stars across the sky

• This motion is due to Earth’s rotation causing the celestial bodies to transverse from east to west.

Annual Motion

Yearly motion of the celestial bodies such as the sun and the stars as viewed from Earth due to Earth’s revolution around the sun

Precession

Caused by gravitational forces exerted by the Sun and the Moon on the Earth.

the slow movement of the axis of a spinning body around another axis due to a torque (such as gravitational influence) acting to change the direction of the first axis.

Precession of equinoxes

refers to the motion of the equinoxes along with the ecliptic due to the cyclic precession of the Earth’s rotational axis.

• Aristotle: 5kg ball

• Galileo: both

Explain Aristotle vs. Galileo’s concept of motion. Which will reach the ground first? 1kg ball or 5kg ball

Vertical Motion by Aristotle

The natural tendency of an object to go to its natural place.

• Example: Falling of the boulders towards the ground and rising of smoke up in the air.

Galileo’s Vertical Motion

emphasized that if two objects of different weights are dropped from a high point, both will hit the ground at the same time.

Aristotle’s Horizontal Motion

mentioned that bodies require force to maintain horizontal motion.

Galileo’s Horizontal Motion

asserted that if there is no interference, a body in motion will keep moving in a straight line forever.

Antiperistasis

is the resistance of a medium in response to the movement of a body

Impetus

is impressed force in projectile that is cause of continued motion.

Galileo’s Projectile Motion

tried to understand falling using ramps. He forwarded the idea that projectile motion is a form of motion in two dimensions and that then horizontal and
vertical components of the projectile’s motion are independent of each other.

Distance

refers to the total length of path taken by an object moving from its initial position to final position.

Expressed in meters (m). scalar quantity

Speed (Scalar)

distance travelled by a body in a given time.

Velocity (Vector)

• time rate of change of position

• is defined by both speed component and direction component since it is a vector

m/s (meter per second)

What is speed and velocity’s unit of measurement?

Acceleration

• defined as the change in velocity of an object per unit time.

• is an example of a vector quantity. Which
  means that it has a directional consideration when
  quantified.

same direction, slowing down

Object speeds up when velocity and acceleration have the __? if not, object is __?