Ch 8: NYSTCE Physics: Laws of Gravitation

About This Chapter

Before you take the NYSTCE Physics CST, be sure to review the laws of gravity. Watch these lesson videos to refresh your knowledge of the gravitational attraction between bodies and the ways in which this force not only pulls objects to surfaces of larger bodies but also holds orbits.

NYSTCE Physics: Laws of Gravitation - Chapter Summary

Designed to be used as one of your study resources for the New York State Teacher Certification Examinations (NYSTCE) Physics Content Specialty Test (CST), this chapter will prepare you for questions on the nature of gravity. Watch these lesson videos of expert instructors as they discuss the laws of gravity and the nature of orbits. Studying this chapter should give you a better understanding of:

  • The law of universal gravitation
  • Formulas for gravitational potential energy
  • Newton's laws in relation to weight and mass
  • Kepler's laws
  • Periods and speeds of elliptical orbits
  • The orbiting of the planets

In addition to watching the lesson videos, you can improve your understanding of gravitational forces by completing the lesson worksheets in this chapter. You'll have access to transcripts that mirror the content of the videos. You can also find links to related information by clicking on the course tab.

NYSTCE Physics: Laws of Gravitation Objectives

The NYSTCE Physics CST is a computer-based certification exam used to certify future physics teachers in the state of New York. It is composed of 90 multiple-choice and one constructed-response items, and you should finish within four hours and 15 minutes. Use the material of this chapter to prepare you for questions on the laws of gravity. You are likely to see such questions in the Mechanics and Thermodynamics subarea, which makes up 23% of the exam.

7 Lessons in Chapter 8: NYSTCE Physics: Laws of Gravitation
Test your knowledge with a 30-question chapter practice test
The Law of Universal Gravitation: Definition, Importance & Examples

1. The Law of Universal Gravitation: Definition, Importance & Examples

Gravity is what pulls us toward Earth, but it's also what pulls Earth toward us. This is explained by the law of universal gravitation, which describes how all objects in the universe have this important force between them.

Gravitational Attraction of Extended Bodies

2. Gravitational Attraction of Extended Bodies

After watching this lesson, you will be able to explain what an extended body is, understand the derivation for the force of gravity between a point charge and a long, thin bar and solve problems using the result of that derivation.

Gravitational Potential Energy: Definition, Formula & Examples

3. Gravitational Potential Energy: Definition, Formula & Examples

In this lesson, you will learn what gravitational potential is, the equation we use to calculate it, and how to use that equation. We'll look at some real-life examples so you can see how it works. A short quiz will follow.

Newton's Laws and Weight, Mass & Gravity

4. 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.

Kepler's Three Laws of Planetary Motion

5. Kepler's Three Laws of Planetary Motion

Find out about the interesting life and major contributions of Johannes Kepler. This lesson will also teach you how to find out how long it takes a planet to revolve around the sun!

Elliptical Orbits: Periods & Speeds

6. Elliptical Orbits: Periods & Speeds

After watching this lesson, you will be able to explain what an elliptical orbit is and calculate the period and speed of an object in an elliptical orbit, if given enough information. A short quiz will follow.

Eccentricity & Orbits of Planets

7. Eccentricity & Orbits of Planets

After watching this lesson, you should be able to explain what eccentricity is and calculate the eccentricity of an orbit given relevant distance measurements. A short quiz will follow.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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