Explain why astronauts on the International Space Station experience less gravity than people on Earth, even though they are still in Earth's orbit.

Astronauts experience less gravity because they are farther away from the Earth's surface. Gravity weakens with distance.

Imagine you have two balls of the same size, but one is made of lead and the other is made of plastic. Which ball would exert a stronger gravitational pull?

The lead ball would exert a stronger gravitational pull because it has more mass.

6th Grade•55 minutes

I can describe how gravity affects objects on Earth.

Sir Isaac Newton developed the theory of gravity after observing an apple falling from a tree.

Gravity is the force of attraction between objects with mass, pulling them together.

The strength of gravity depends on an object's mass and distance; greater mass and closer distance result in a stronger gravitational pull.

This lesson includes 12 practice questions to reinforce learning.

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1. Define gravity in your own words, based on what you learned in the video.

2. According to the video, what two factors determine the strength of gravity?

3. Which of the following objects would exert a stronger gravitational pull?

...and 9 more questions

Forces: Gravity - How Gravity Affects Weight and Motion

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