Topic 11 Lesson 1

Rockets and Satellites

As we move through this lesson, write down the sentences that are highlighted onto your notes page.

Multiple Choice

When a rocket is launched from Earth, it needs to reach a speed of _____ in order to reach space. This is known as the orbital velocity.

• 5.0 kilometers per second

• 2.8 kilometers per second

• 7.9 kilometers per second

• 9.4 kilometers per second

Multiple Choice

Which of Newton's laws explains the lifting of a rocket into space?

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

• Newton's 4th Law

Multiple Choice

When a rocket rises, what causes the ACTION force?

• the rocket's exhaust gases being pushed downwards

• the gases pushing the rocket upwards

Multiple Choice

When a rocket lifts off the ground, the net force is in an upward direction. Is the upward pushing force greater or less than the downward pull of gravity?

• less than

• greater

Open Ended

IN YOUR OWN WORDS, how would you explain what a satellite is?

Multiple Select

SELECT ALL THAT APPLY. Which of the following are examples of NATURAL satellites?

• the Planet mercury

• the Earth's moon

• Jupiter's moon

• a communications satellite

Multiple Choice

An object traveling in a circle is accelerating because

• it does not change direction

• it is maintaining it's speed and direction

• it is constantly changing direction

Multiple Choice

Satellites in orbit around Earth continuously fall toward Earth.

• true

• false

Multiple Choice

About how far above the Earth does a communications satellite orbit?

• 400 km

• 6,000 km

• 20,000 km

• 35,800 km

Multiple Choice

About how far above the Earth does a global positioning system (GPS) satellite orbit?

• 400 km

• 6,000 km

• 20,000 km

• 35,800 km