EMS review. 1.Look at the above H-R diagram and list the sequence of stars from greatest to least luminosity. Deneb, Spica, Capella, Sirius B 2.Which.

Slides:

Advertisements

Similar presentations

30.1 notes Characteristics of Stars

Advertisements

Big Questions If astronomers measure an object’s apparent brightness (flux), what do they need to know to figure out how far away that object is? Why are.

Stars and Their Characteristics

Components of the Universe Review REGULAR. List the stages in the life cycle of an Average Star:  Nebula – area of dust and gas where stars are formed.

CHAPTER 28 STARS AND GALAXIES

Electromagnetic Spectrum. Properties of EM Waves EM Waves have frequency, amplitude, wavelength and speed Almost all EM Waves are invisible with the exception.

The Electromagnetic Spectrum

8 th Grade Science Final Review. When is a star born? When is a star born? a. When nuclear fusion begins b. When papastar is brightest c. When a meteor.

CHARACTERISTICS OF STARS. A star is a ball of gas that gives off a tremendous amount of electromagnetic radiation. The energy comes from a process called.

The Doppler Effect Solar System Day 3. Solar System Day 3- Objectives Describe how the _____________________ can be used to study the movement of objects.

WHAT ASTRONOMERS LEARN ABOUT THE ELECTROMAGNETIC SPECTRUM.

The Universe PHYSICAL SCIENCE Our Place in the Universe Scale of the Universe.

The Big Bang, Galaxies, & Stars

STARS BALL OF GASES, MOSTLY HYDROGEN AND HELIUM Are all stars the same color? NO! Color- determined by surface temperature.

Stars, Galaxies, and the Universe.  To understand how telescopes work, its useful to understand the nature of the electromagnetic radiation. Light is.

Electromagnetic Spectrum  EM Spectrum – a continuous range of wavelengths  Longer wavelengths = low energy  Ex. – radio waves, microwaves  Shorter.

Star Properties. Where do stars come from? Stars form in a cloud of dust and gas in space called a nebula.

STARS Ball of gases, mostly hydrogen and helium that give off energy A. Color- determined by surface temperature.

Lunar Phases. Size Largest stars = supergiants or giants The next step down in size are called medium stars. White dwarf stars are about the size of.

Chapter 30 Stars, Galaxies & Universe Characteristics of Stars What is a “Star”? A ball of gases that gives off a tremendous amount of electromagnetic.

ORIGINS OF THE UNIVERSE What you need to know about life, the universe, and everything………

EMR, Big Bang, and Stars Unit Review. Use the pink NECAP reference sheet to answer following questions: 1.What is the relationship between the frequency.

Exploring the Universe Harcourt Science Unit D Chapter 4 Mrs.Strand 6th grade Lockwood Middle School.

The UniverseSection 1 Section 1: The Life and Death of Stars Preview Key Ideas Bellringer What Are Stars? Studying Stars The Life Cycle of Stars.

Evidence for the Big Bang?

Electromagnetic Spectrum. The Universe The Big Bang forms the universe….. The energy creates stars. Gravity pulls stars together into Galaxies. The stars.

Evidence of the Big Bang Theory

Stars – Temperature Hotter objects emit shorter wavelengths Cooler objects emit longer wavelengths –Ex. Sun is a “medium hot” (5800 K or about 5500 C)

THE BIG BANG This model suggests that somewhere around 13.7 billion years ago all matter in the Universe was contained in a hot, dense particle. The temperature.

Viewing the Universe. 8Astronomers gather information about objects throughout the universe by detecting various kinds of energy given off by these objects.

Classification of Stars – HR diagram Objectives: understand the differences between near and bright visible stars learn how to use the HR-diagram to classify.

Ginger Dublin 6th Grade Science

What is the DOPPLER EFFECT? Doppler and Sound  When sound waves are made they spread out evenly in all directions like ripples on a pool of water 

Components of the Universe Test Review:

Aim: How does light provide evidence of the universe’s composition? I. Light – a form of electromagnetic radiation. A. electromagnetic radiation – energy.

Properties of Stars. Star Color – the color of a star is a clue to its temperature a.The coolest stars are red b.The medium stars are yellow c.The hottest.

The Electromagnetic Spectrum in our Universe. Background info. ★ Everything astronomers know about the universe comes from studying light from distant.

The Electromagnetic Spectrum Energy moves in uniform patterns called waves. The electromagnetic spectrum consists of the range of all possible frequencies.

The Expanding Universe. Basic Properties of Stars Magnitude Measuring the Stars –One of the most basic observable properties of a star is how bright it.

2 pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt H-R diagramLife cycleStar.

THE BIG BANG THEORY The Expanding Universe. Review Human demonstration.

Exploring the Universe. I.) Properties of Stars A. A. Color and Temperature 1.A star’s color indicates that temperature of its surface a. a. Hottest stars.

2 pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt H-R diagramLife cycleStar.

The Doppler Effect The sound of a police car siren changes as it moves past you. The pitch of the siren seems to change. Ahead of the car, the sound waves.

Exploring the Universe. I.) Properties of Stars A. A. Color and Temperature 1.A star’s color indicates that temperature of its surface a. a. Hottest stars.

Study Notes for Chapter 30: Stars, Galaxies, and the Universe.

Deep Space and Solar System New Test/New Quiz. Universe Biggest Oldest Galaxy Milky Way Solar System Star Sun PlanetMoon Smallest Youngest.

Stars Goal: Compare star color to star temperature.

Stars and Their Characteristics Constellations Constellation- groups of stars that appear to form patterns –88 constellations can be seen from n.

Study of the universe (Earth as a planet and beyond)

Astronomy. Definitions Rotation – An object circling 360 degrees around _____________ Revolution – An object circling 360 degrees around _________________.

Study Guide Practice Each item on the study guide should come from an assignment or notes. Can you find it?  Define mechanical wave:  Transverse waves.

Study of the universe (Earth as a planet and beyond)

Universe Review Your Host: Mrs. Gibson. What unit do we use to measure distance in space?

8.5CD Electromagnetic Spectrum and Light Years The student is expected to explore how different wavelengths of the electromagnetic spectrum such as light.

Study of the universe (Earth as a planet and beyond)

The Universe Test Review Week 18. What is rotation? Rotation Rotation: Earth spins around its axisRotation: Earth spins around its axis 1 rotation takes.

What is Electromagnetic Energy?

STARS AND GALAXIES.

Topic F Notes Use Cornell note format.

Chapter 30, Star, Galaxies, and the Universe

Astronomy Review November 29, 2007.

Chp. 7: Astronomy Study Guide.

Chapter 28: Galaxies & Stars Review

Stars Notes Ch. 28.

Ginger Dublin 6th Grade Science

Section 2 The Life Cycle of Stars

Presentation transcript:

EMS review

1.Look at the above H-R diagram and list the sequence of stars from greatest to least luminosity. Deneb, Spica, Capella, Sirius B 2.Which star is the youngest? Spica 3. How is temperature related to this diagram? Hottest on left coolest on the right.

4.Explain the life cycle of a star. Feel free to draw a diagram. Nebula (protostar), main sequence giant, white dwarf Supergiant neutron star black hole 5. What is a light year? What is its relationship to distance? How are they both related to an Astronomical Unit? The distance light travels in a year. The light year is much longer than the Astronomical unit.

6. What is the difference between absolute and apparent magnitude? Absolute magnitude is actual brightness. Apparent magnitude is how bright it appears from earth. 7. Explain how you can use spectral data to find out which elements are in the light that stars emit. Think of your Star Spectra Gizmo and Lab. Compare the spectral data from a star to the data of elements we know. If they match the element is in that star.

8.What is the difference between red shift and blue shift? How is the Doppler Effect related? When an object moves toward us the light waves bunch up and appear more blue. When an object moves away from us the light waves spread out and appear more red. This changing of frequency because of motion is the Doppler effect.

9.How are frequency, wavelength, and energy related? Higher frequency is a shorter wavelength and higher energy. Lower frequency is a longer wavelength and lower energy. 10. How is radiation related to EM waves? EM waves are forms of radiation

11. What is the difference between ionizing and non-ionizing radiation? Non-ionizing is lower energy and safe (radio, microwave, infrared, and visible light). Ionizing is high energy and dangerous (UV, X-ray, and Gamma rays). 12. What do the numbers on the spectrum indicate? Wavelength in meters or frequency in hertz (Hz).

13. If Vega is 32 light years away, when we see the light from Vega today, what year was it actually emitted? = What does Edwin Hubble have to do with red shift / blue shift? Edwin Hubble used the red shift/ blue shift (Doppler effect) to measure the distances to galaxies and found evidence the universe is expanding which supports the big bang theory.

Also study your EMS notes and your properties of waves(light) notes.