# Introduction to Astronomy: Certificate Program

• Course type: Self-paced
• Available Lessons: 325
• Average Lesson Length: 8 min
• Eligible for Certificate: Certificate completed Yes

Certificates show that you have completed the course. They do not provide credit.

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chapter 1 / lesson 1
The Scientific Field of Astronomy

• Introduction to Astronomy: Certificate Program Practice Test

### Course Summary

An Introduction to Astronomy Certificate is just a few short weeks away with this fun course. By simply watching our video lessons and taking our quizzes, you'll earn a certificate you can use to boost your online job profile and show prospective employers your interest in this field.
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#### 28 chapters in Introduction to Astronomy: Certificate Program

Course Practice Test

Check your knowledge of this course with a 50-question practice test.
• Comprehensive test covering all topics
• Detailed video explanations for wrong answers
Week {{::cp.getGoalWeekForTopic(3, 28)}}
Week {{::cp.getGoalWeekForTopic(4, 28)}}
Course Progress Best Score
Lesson 1 - Newton's First Law of Motion: Examples of the Effect of Force on Motion
Lesson 2 - Newton's Second Law of Motion: The Relationship Between Force and Acceleration
Lesson 3 - Newton's Third Law of Motion: Examples of the Relationship Between Two Forces
Lesson 4 - Newton's Laws and Weight, Mass & Gravity
Lesson 5 - The Law of Universal Gravitation: Definition, Importance & Examples
Lesson 6 - Newton's Law of Gravitation: Definition & Examples
Lesson 7 - Force: Definition and Types
Lesson 8 - Work as an Integral
Lesson 9 - Mass and Weight: Differences and Calculations
Lesson 10 - The Normal Force: Definition and Examples
Lesson 11 - Friction: Definition and Types
Lesson 12 - Forces: Balanced and Unbalanced
Lesson 13 - Identifying Action and Reaction Force Pairs
Lesson 14 - Net Force: Definition and Calculations
Lesson 15 - Determining the Individual Forces Acting Upon an Object
Lesson 16 - Free-Body Diagrams
Lesson 17 - Distinguishing Between Inertia and Mass
Lesson 18 - State of Motion and Velocity
Lesson 19 - Determining the Acceleration of an Object
Lesson 20 - Air Resistance and Free Fall
Lesson 21 - Gravitational Potential Energy: Definition, Formula & Examples
Lesson 22 - Gravitational Attraction of Extended Bodies
Lesson 23 - The Acceleration of Gravity: Definition & Formula
Week {{::cp.getGoalWeekForTopic(18, 28)}}
Week {{::cp.getGoalWeekForTopic(20, 28)}}

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Practice Tests in this course
Check your knowledge of this course with a 50-question practice test. Once you take the test, you will receive a detailed exam report complete with your personal statistics and even specific lessons to focus on! Take the practice test now
Your detailed study guide will include:
• Answers and detailed explanations to each question
• Video lessons to explain complicated concepts
Course Practice Test
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