Orbital Motion - Quiz Quiz

Question 1

How can Brendan correct his diagram?

Revolt · Accepted Answer

A: Change the  cap f sub g is equal to cap f sub c  vector so it is perpendicular to the  v  vector.

Question 2

What does 3 times 10 to the 5th power kilograms represent? Lexy used the formula shown to calculate the force of gravity on a space shuttle. cap f sub g is equal to cap g the fraction with numerator open paren 3 times 10 to the 5th power kilograms close paren times open paren 6 times 10 to the 24th power kilograms close paren and denominator open bracket open paren 6 point 4 times 10 to the 6th power m close paren plus open paren 1 point 8 times 10 to the 5th power m close paren close bracket squared

Revolt · Accepted Answer

A: the mass of the space shuttle

Question 3

Which best explains why astronauts appear weightless when they are in a space shuttle orbiting Earth?

Revolt · Accepted Answer

C: They are falling toward Earth at the same rate as the space shuttle.

Question 4

Which object would be considered to be in free fall?

Revolt · Accepted Answer

D: one with only gravity acting upon it

Question 5

A satellite orbiting Earth has a tangential velocity of 5000 m/s Earth’s mass is 6 times 10 to the 24th power kilograms and its radius is 6 point 4 times 10 to the 6th power m Which is the distance of the satellite from Earth?

Revolt · Accepted Answer

A: 16 comma 008 comma 000 m

Question 6

In order to calculate the tangential speed of the satellite, what should Enrique do first? Enrique is given information about a satellite orbiting Earth. r is equal to 3 point 8 times 10 to the 8th power m cap t is equal to 18 days

Revolt · Accepted Answer

A: convert the orbital period to seconds

Question 7

Why are satellites placed into orbit at least 150 kilometers above Earth’s surface?

Revolt · Accepted Answer

B: to avoid air resistance

Question 8

Using the information given what does Hannah need in order to calculate the tangential speed of the orbiting object ? Hannah has information about an object in circular orbit around Earth. m sub cap e ar t h is equal to 6 point 0 times 10 to the 24th power kilograms cap g is equal to 6 point 6 7 times 10 to the negative 11 power the fraction with numerator m cubed and denominator kg times s squared r sub e ar t h is equal to 6 point 0 times 10 to the 6th power m

Revolt · Accepted Answer

C: the distance of the orbiting object to Earth

Question 9

Which best describes Sid’s error?

Revolt · Accepted Answer

B: Centripetal force is perpendicular to the velocity of the satellite.

Question 10

Based only on the information in the chart, which objects will most likely go into orbit around Earth?

Revolt · Accepted Answer

A: Y and Z

Orbital Motion - Quiz Quiz Answers

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