1. Moon Olympics
7.1.5

2. Click on the picture to launch the video
Check this out:
Click on the picture to launch the video

3. Why would athletes be able to perform so much better on the moon?
Turn and talk for 15 seconds Give evidence that supports your ideas. What is different about the moon that makes it have less gravity than Earth? A: The moon has a much smaller mass than Earth

4. Make inferences based on this data:
Name
Mass (x 1022 Kg)
Sun
198,910,000
Jupiter
189,860
Saturn
56,846
Neptune
10,243
Uranus
8,681
Earth
697
Venus
587
Mars
464
Mercury
133
Moon
117
Pluto 1
Make inferences based on this data:
What amount of gravity would an astronaut feel on Jupiter? What amount of gravity would an astronaut feel on the Sun? What amount of gravity would an astronaut feel on Venus? What amount of gravity would an astronaut feel on Pluto?

5. Now, let’s see if your inferences are correct:
Watch this 14 minute video and then take a short quiz.

6. Here comes the quiz!
Copy down each question into your notes, then answer the question.

7. Quiz Question 1:
True or False Without gravity there would be no life on Earth.
True Everything would float away from the surface and we would have no atmosphere.

8. Quiz Question 2:
Gravity is an ______________ force, meaning that it can act on objects without touching them.
Gravity is an at-a-distance force, meaning that it can act on objects without touching them.

9. Quiz Question 3:
Escape Velocity is the speed an object needs to travel in order to overcome a planet’s ___________ and leave its surface.
Escape Velocity is the speed an object needs to travel in order to overcome a planet’s gravity and leave its surface.

10. Quiz Question 4:
The greater an object’s ______, the greater its pull on other objects.
The greater an object’s mass, the greater its pull on other objects.

11. Quiz Question 5:
The _____________ something is away from Earth, the less it will feel the pull of Earth’s gravitational force.
The farther something is away from Earth, the less it will feel the pull of Earth’s gravitational force.

12. Complete your exit ticket:
Gravity can change according to the ________ of the plant you are on.