BY: MARVIN P. POSILLO

PLANETARY PROPERTIES

MASS AND WEIGHT

MASS - measure of how strongly gravity pulls on that matter.

WEIGHT- measure of how much matter an object has.

Difference Between Mass and Weight

Weight is dependent on gravity.- Weight is the force exerted on mass by gravity.- Gravity is a force that pulls us toward the center of the planet, which keeps us from drifting off into space. - Every single object in the universe has gravity. - Weight will change depending on the surface gravity.

Mass is independent of gravity.- Mass is the amount (quantity) of matter in an object.- Mass has the same value everywhere in the universe.

DENSITY

Density =  Mass Volume

The density of a material helps to distinguish it from other materials.

ROTATION

Earth makes a complete counterclockwise rotation (spins on its axis) once in each 24-hour period. This is why the sun appears to rise in the East and set in the West

A complete spin (360 Degree) of a planet on its axis.

REVOLUTION

The Earth revolves counterclockwise around the sun once every 365 1/4 days.

Planets revolution varies from each other. The nearer the planet the faster it revolves around the sun.

ORBIT

It is an imaginary path that keeps the planets in its order and avoid collision among planets.

The planets do not move in a perfect circle around the sun; the path is actually an ellipse

Circle Ellipse

Size and Characteristics of PlanetsPlanet Mass (kg) Radius

(km)Density

(g/cm3)

Rotation Period (days)

1. Sun 1.991 x 1030 695,950 1.410 24.66

2. Mercury 3.181 x 1023 2,433 5.431 58.82

3. Venus 4.883 x 1024 6,053 5.256 244.59

4. Earth 5.979 x 1024 6,371 5.519 1.00

5. Moon 7.354 x 1022 1,738 3.342 27.40

6. Mars 6.418 x 1023 3,380 3.907 1.03

7. Jupiter 1.901 x 1027 69,758 1.337 0.41

8. Saturn 5.684 x 1026 58,219 0.688 0.43

9 Uranus 8.682 x 1025 23,470 1.603 0.45

10. Neptune 1.027 x 1026 22,716 2.272 0.66

11. Pluto 1.08 x 1024 5,700 1.65 6.41

Composition of Planets

Magnetic Fields of Earth and other planets are believed to arise from electrical currents produced in the molten cores.

Chemical reaction of elements produces these electrical currents.

LAYOUT OF THE SOLAR SYSTEM

SUN

The center of the Solar System The only star in the Solar System The source of light.

TERRESTRIAL PLANETS

Mercury, Venus, Earth and Mars Close to the central star Small in mass and radius High density

JOVIAN PLANETS

Jupiter, Saturn, Uranus and NeptuneFar from the central starLarge in mass and radiusLow density

Asteriod Belt

It divide the Terrestrial planets and Jovian planets

The asteroid belt is the region of the Solar System located roughly between the orbits of the planets Mars and Jupiter. It is occupied by numerous irregularly shaped bodies called asteroids or minor planets

Kuiper Belt

The Kuiper Belt extends from roughly the orbit of Neptune (at 30 AU out to about 55 astronomical units from the Sun.

. It contains small solar system bodies made mostly of ices. The ices are frozen volatiles (gases) such as methane, ammonia, nitrogen and water.

It also is home to the known dwarf planets Pluto, Haumea and Makemake.

Oort CLoud

The Oort Cloud is an extended shell of icy objects that exist in the outermost reaches of the solar system.

This cloud of particles is theorized to be the remains of the disc of material that formed the Sun and planets.

The cloud itself stretches out almost a quarter of the way to the nearest star, Proxima Centauri. It is spherically shaped and consists of an outer cloud and a torus (doughnut-shaped) inner cloud.

THANK YOU!!!!