25.1 - Properties of Stars

25.1 - Properties of Stars

Earth Sciece

Multiple Choice

What happens during nuclear fusion?

• Smaller atoms are forced together to form bigger atoms. ex: 4 H fuse to make 1 He.

• An atom is broken apart, releasing immense amounts of energy in the form of a nuclear blast

Multiple Choice

T/F. Visible light is a part of the Electromagnetic spectrum.

• True

• False

Multiple Select

Which of the following subatomic particles are located in the NUCLEUS of atoms?

• Electrons

• Neutrons

• Protons

• Hydrogen

Multiple Choice

Electrons are small negatively charged subatomic particles that are located orbiting around the nucleus of atoms.

• True

• False

​Keep in Mind...

​- Each group must come up with at least 1 'burning question' by the beginning of our review day 9/13. NEXT MONDAY.

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​- Burning questions are to be written down on a sticky note with your block and group number on it. You may post the question anywhere it fits on our 'Burning Questions' board in class -or- you may turn the sticky note into me and I will post it.

​Key Concepts

​- Temperature scale between Celsius, Fahrenheit, and Kelvin.

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​- Interpreting H-R diagram

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​- Describe what astronomers can learn by studying star properties

Multiple Choice

Lets review the video. The Kelvin scale for temperature uses what value for freezing water and what value for boiling water?

• 273 K - freezing

  373 K - Boiling

• 32 K - freezing

  212 K - Boiling

• 0 K - freezing

  100 K - Boiling

​Why does Kelvin matter?

• ​Gives a measure for absolute zero temperature.

• ​Absolute zero temperature means that there is a complete absence of thermal energy

• ​We measure the temperature of stars in Kelvins

​Review Concepts

​- Temperature scale between Celsius, Fahrenheit, and Kelvin.

​

​- Interpreting H-R diagram

​

​- Describe what astronomers can learn by studying star properties

​

​----> the formation of planets, the origin of the elements, the characteristics of galaxies, and the future of our Solar System.

​Assignment 9/7

Use the book and notes to complete 25.1 worksheet in Schoology

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​- Make up any work that you have missed up to this point

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​- Be aware...

​- Unit 1 Review will be on Thursday (3/16)

• -Test will be Friday