Impacts of Meteors Meteor: Glowing fragments from outside the atmosphere that burn upon entry Meteorite: Piece of rock that strikes earth from space Asteroid:

Slides:



Advertisements
Similar presentations
Minor Members of the Solar System
Advertisements

What are comets? In 1704 Sir Edmond Halley hypothesized that the comets of 1456, 1532, 1607, 1682 were the same object. He calculated a 75.7 year orbit.
Remnants of Rock and Ice Asteroid: a rocky leftover planetesimal Comet: an icy leftover planetesimal Meteoroid: a planetesimal or other object that lands.
Vocabulary.  Our solar system includes the sun, the planets and many smaller objects.
Remnants of Rock and Ice Asteroids Meteoroids (meteorites, meteor) Comets.
Minor Members Things that didn’t make up planets or moons.
OTHER OBJECTS IN THE SOLAR SYSTEM
Meteors and Comets Meteors On a clear night, one can see “shooting stars”. These are not stars, but meteors. They are debris and dirt particles from outer.
List all 8 planets in order of distance from the sun.
Kinetic Energy of an NEA Impact Event Contributed by Eric B. Grosfils Pomona College.
Chapter C13 Angular Momentum C13B.1, B.2, S.2 Due Wednesday.
Other parts of the solar system. Comets Small body of ice, rock and dust loosely packed together that orbits the sun.
Asteroids, Meteors, and Comets. What are they? How are they different from each other?
Other Celestial Objects Comets, Asteroids, Meteoroids, Meteors, and Meteorites.
Meteors. Ground Zero What is the chance of being near (within 1 km) a meteor as it strikes the ground during your lifetime? A. About 1 in a thousand.
Interplanetary Bodies. Asteroids Solid bodies having no atmosphere Have well determined orbits More than 2000 in our solar system.
Fireballs! Peekskill fireball. Rocks From Space How Big Are They? “Shooting Stars” (meteors) are caused by sand-sized particles.
Asteroids, Comets, Meteors ---- and Impacts! Asteroid belt -- between Mars and Jupiter.
Small Bodies in the Solar System
What’s That Up In The Sky???
IT CAME FROM Asteroids, comets, and YOU. Formation of the Solar System.
Our Solar System. Terrestrial Planets Mercury Mars Earth Venus.
Impact What is the chance of being near (within 1 km) a meteor as it strikes the ground during your lifetime? A. About 1 in a thousand. B. About the same.
Ch Small Bodies in the Solar System
Asteroids. Asteroid Belt An asteroid is a bit of rock Left over after the Sun and all the planets were formed. Most asteroids in our solar system can.
COMETS.
Simon and Preston. comets When a comet passes the sun it grows a tail of gas and dust.
What they are Where the are They and Us.  Comet – A body that produces a coma of gas and dust; a small, icy body that orbits the Sun  Made of ice and.
Chapter 7: Sun, Moon, and Planets Lesson 7 – The Solar System and Beyond.
Small Bodies in our Solar System. Comets A small body of ice, A small body of ice, rock and cosmic dust “Dirty Snowball” “Dirty Snowball” These are samples.
What’s That Up In The Sky??? Comets, Meteors and Asteroids.
Solar System – Activity 10. SATELLITES What are SATELLITES ? Satellites are objects that move around a larger orbit. ORBIT What is an ORBIT ? An orbit.
Views of the Solar System Sun and Planets. Planet Planet means to wander. Planet means to wander. Planets change position against the background of motionless.
Solar System PowerPoint By Kayley. Stars and our Sun A star is a huge ball of gas that is very hot and that gives off heat, light, and other energy that.
Small Bodies In The Universe Asteroids, Comets and Meteors.
Asteroids, Comets, Meteors ---- and Impacts! Asteroid belt -- between Mars and Jupiter.
Small Body Objects. Comets Chunks of ice and rocks that originate from the outer solar system and ort cloud. Structure: – Nucleus – solid core or rock.
Comets are probably left over from the time when the planets formed.
Asteroids, Meteoroids, and Comets
What causes the seasons?
Small Bodies in Space.
Ch Small Bodies in the Solar System
NOTES: Behaviors & Bolides (29.4)
Meteoroids! Asteroids! Comets!
OBJECTS in Space.
The Solar System Pt. 2 Bolides & Behaviors (29.4)
Impacts on Earth Barringer (Meteor) Crater, Arizona 50,000 years old.
CRATER INVESTIGATION.
Comets, Asteroids, and Meteoroids
Formation of Our Solar System
Comets, Asteroids, & Meteoroids
Ch Small Bodies in the Solar System
Parts of the Solar System
What are asteroids, meteors, comets, and moons?
Asteroids, Meteors & Comets, Oh My!
Comets, Asteroids, Meteoroid and Meteorites
Bell Ringer When you hear someone say “I just saw a Shooting Star,” what do they mean?
Comets, Asteroids, and Meteors
Comets, Meteors and Asteroids foldable
1833.
Near earth objects (neos): Comets, Meteors, and Asteroids
7.5 Other Objects in the Solar System
Dwarf Planets Spherical object that orbits the Sun
Ch Small Bodies in the Solar System
People of earth. Help!!!!.
Ch Small Bodies in the Solar System
Comets, Asteroids and Meteors
May 27, 2019 Aim: Meteors, Asteroids and Comets Take out:
COMETS, ASTEROIDS, METERORS, AND METEROIDS!
Presentation transcript:

Impacts of Meteors Meteor: Glowing fragments from outside the atmosphere that burn upon entry Meteorite: Piece of rock that strikes earth from space Asteroid: Small solar system bodies orbiting around the sun Yao Dina Freedman

Frequency: graph Meteorites Velocity: typically 10 to 70 km/s when entering atmosphere Large Small Slow down to “almost nothing”, same velocity as an object dropped from a plane Reach the ground with high velocity, result in a crater Nelson, 2010

Kinetic Energy and Power Meteorite Flux =10⁷- 10⁹ kg/year Escape Velocity= 11 km/s KE = ½ * 10⁸kg * (1.1*10⁴ m/s)² =6.05 * 10¹⁵ Joules Power = 6.05 * 10¹⁵ Joules/ * 10⁷ s Power=1.92*10⁸ W or 1.92 *10⁵ kW An average house uses 1.8 kW

10 megatons 0.1 megatons

Historical Impacts The KT extinction 65 MYA created the Chicxulub Crater about 180 km in diameter The 1908 Tunguksa Siberia meteor knocked down trees for about 850 sq. miles but did not leave a crater

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2024 SlidePlayer.com. Inc. All rights reserved.