About This Chapter
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.
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.
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.
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.
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.
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!
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.
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.
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Other chapters within the NYSTCE Physics (009): Practice and Study Guide course
- NYSTCE Physics: Foundations of Scientific Inquiry
- NYSTCE Physics: Scientific Experimentation
- NYSTCE Physics: Vectors & Scalars
- NYSTCE Physics: Principles of Motion
- NYSTCE Physics: Fluid Mechanics
- NYSTCE Physics: Linear Momentum
- NYSTCE Physics: Work, Energy & Power
- NYSTCE Physics: Oscillations
- NYSTCE Physics: Rotational Motion, Collisions & Conservation
- NYSTCE Physics: Heat, Energy & Thermodynamics
- NYSTCE Physics: Electrical Forces & Fields
- NYSTCE Physics: Potential & Capacitance
- NYSTCE Physics: Current Circuits
- NYSTCE Physics: Magnetism
- NYSTCE Physics: Waves, Sound & Light
- NYSTCE Physics: Quantum Theory & Atomic Structure
- NYSTCE Physics Flashcards