Orbital Motion

A satellite orbiting Earth has a tangential velocity of 5000 m/s. Earth's mass is kg and its radius is m. Which is the distance of the satellite from Earth?

9,608,000 m

Sid created a chart to summarize characteristics of satellite motion. Which best describes Sid's error?

Centripetal force is perpendicular to the velocity of the satellite.

Which best explains why a satellite accelerates?

It is always changing direction.

A group of scientists is trying to launch an object into orbit, and the object is traveling at 6500 m/s. Which best explains why the object will not successfully orbit Earth?

The object is not traveling fast enough to match Earth's curvature.

Which would cause the greatest increase in the acceleration of a satellite?

a decrease in the radius and an increase in the tangential speed

Enrique is given information about a satellite orbiting Earth. r = 3.8 × 108 m T = 18 days In order to calculate the tangential speed of the satellite, what should Enrique do first?

convert the orbital period to seconds

Once an object enters orbit, what keeps the object moving sideways?

inertia

Hannah has information about an object in circular orbit around Earth. mEarth = 6.0 × 1024 kg G = 6.67 × 10-11 What additional information does Hannah need in order to calculate the tangential speed of the orbiting object?

the distance of the orbiting object to Earth

Lexy used the formula shown to calculate the force of gravity on a space shuttle. Fg = G What does 3 × 105 kg represent?

the mass of the space shuttle

Which formula can be used to find the tangential speed of an orbiting object?

v=2 pie r/ T