## Orbits Video Lessons (15 video lessons)

Watch simple explanations of Orbits and related concepts.

Semi-Major Axis of an Ellipse

Eccentricity & Orbits of Planets

Elliptical Orbits: Periods & Speeds

Kepler's Three Laws of Planetary Motion

Stable Orbital Motion of a Satellite: Physics Lab

Inertial Frame of Reference: Definition & Example

How to Find the Major Axis of an Ellipse

Kepler's Laws, Ellipses, and Eccentricity

Circular Velocity & Escape Velocity

How Orbits Are Influenced by Gravity & Energy

## Orbits Questions and Answers (1,450 questions and answers)

Test your understanding with practice problems and step-by-step solutions.

Find the equation of the ellipse with foci (2, 1) and (2, 3) and vertices (2, 0) and (2, 4).

A newly discovered planet takes 84.0 years to complete one full orbit around its star. If the mean radius of the orbit is 2.87 x 10^12 m, what is the mass of the star?

A fisherman in a boat is using a "10-lb test" fishing line. This means that the line can exert a force of 45 N without breaking (1 lb = 4.45 N). A. How heavy a fish can the fisherman land if he pul

If the major axis of an ellipse is 26 units in length and the minor axis is 10 units in length, determine the eccentricity of the ellipse.

Draw the graph and find the semi-major, semi-minor, and foci points for 16x2 + 9y2 = 144.

A spacecraft orbits Earth in a circular orbit of radius R. The spacecraft applies a short burst of the ships engines. What happens to the shape of the orbit and why?

Write out the parametric integral for the ellipse E parametrized by x(theta) = cos(theta) and y(theta) = sin(theta)/2^(1/2): integral along E (-y dx + x dy)/(x^2+2y^2)

There is a satellite on a circular path at the height of h = 1200 km above the ground. a) Find the satellite's speed and traffic time. b) At what height does the satellite need to be moved in or

Write a relationship for the potential energy of a body of mass m, when it is a distance r from the center of mass M and radius R. Explain all symbols used and show that if a body is to escape the

A satellite of mass m is in Keplerian orbit around a parent body of mass M much less than m. The satellite has total energy E and angular momentum l, where angular momentum is measured about the pa

## Orbits Quizzes (30 quizzes)

Check your mastery of this concept by taking a short quiz.

Semi-Major Axis of an Ellipse

Characteristics of Orbits

Eccentricity & Orbits of Planets

The Moon's Orbit & Rotation: Quiz & Worksheet for Kids

Elliptical Orbits

General and Special Relativity Theories

Kepler's Laws of Planetary Motion

Circular Velocity & Escape Velocity

Lab on the Stable Orbital Motion of a Satellite

Earth's Rotation & Revolution

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