About This Chapter
Physics of Space - Chapter Summary
As you go through these lessons on the physics of space, you can review details about Earth's axial tilt and the reason for astronomical ways of measuring distance. Your review of this chapter will boost your comprehension of space probes and what causes an eclipse. By the end of your studies, you should be ready to:
- Describe Earth's place in the solar system and the universe
- Discuss Earth's orbit around the sun
- Explain why different seasons occur
- List facts about the moon
- Differentiate between mass and weight
- Explain how gravity plays a role in forming the shapes of planets
- Recall planets in the solar system that can be seen with the naked eye
- Distinguish between natural and artificial satellites
The self-assessment quizzes available for each lesson will test how much you know about the physics of space. These engaging lessons can help you easily understand the topics presented. You can review all the lessons in order, or just those where you require a refresher.
1. Earth's Location in the Solar System
After watching this video, you will be able to describe Earth's place in the solar system, the galaxy and the universe as a whole. A short quiz will follow.
2. Earth's Axial Tilt & Orbit Around the Sun
After watching this video, you will be able to describe the Earth's orbit around the Sun, including the orbital plane, its eccentricity, and axial tilt. A short quiz will follow.
3. The Cycle of the Seasons in Astronomy
This lesson will explain to you why the Earth has different seasons, what the equinoxes and solstices are, their names, and if the distance the Earth is from the Sun influences the seasons.
4. What is an Eclipse? - Definition & Types
This lesson will explain what an eclipse is and the various types of eclipses, particularly from the vantage point of the earth. A short quiz will follow.
5. About the Moon: Phases & Facts
Have you ever wondered if the moon is made of cheese? Learn the truth about the world's most famous satellite in this lesson packed with basic stats, orbit info, phase details, and other fun facts.
6. Astronomical Units & Light Years: Definition & Examples
After watching this video, you will be able to explain why we need special astronomical ways of measuring distance. You will also be able to state the meaning of the terms astronomical unit, light year and parsec. A short quiz will follow.
7. Newton's Laws and Weight, Mass & Gravity
Did you know that mass and weight are not the same? This lesson describes the difference between the two as well as the effect of gravity on weight. Examples are used to teach you how to calculate weight based on mass and acceleration of gravity.
8. Gravity in the Solar System: Shaping Planets & Stars
After watching this video, you will be able to explain what gravity is, and the role it plays in forming the shapes of planets and stars. A short quiz will follow.
9. Planets of the Solar System: Orbits & Visibility
This lesson will tell you which planets in our solar system you can see with the naked eye and which ones you cannot. You'll also learn how they appear to move in our sky and why we can see them in the first place.
10. Satellite: Definition & Uses
In this lesson, you will learn what a satellite is, the distinction between natural and artificial satellites, and some of their practical uses. A short quiz will follow.
11. Space Probe: Definition & Facts
For hundreds of years, astronomers had only the telescope to study stars and planets. Modern scientists have come a long way since then, with the invention of the space probe. In this lesson, we will learn what a space probe is as well as highlight a few noteworthy probes.
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