Gravity Work

Highlight the main ideas. Summarize these main ideas  in one or two paragraphs.

Gravity is

a force that attracts all objects towards each other. Gravitational attraction is greater for more

massive objects.  This force of gravity causes the Moon to change direction to make it orbit

around the Earth. Gravity doesn’t disappear just because you are above the atmosphere.

Isaac Newton was the first to come up with the idea that all objects are attracted towards
each other by gravity.

Astronauts appear to be weightless for the same reason that a person on a trampoline
feels weightless when in the air. There is still the same amount of gravity acting,
but there is no floor pushing upwards on the astronaut, so the weight force cannot be felt.
Science ideas change over time.

When does gravity decrease?  “Gravity

decreases as distance between the objects increases.”

When does the force of gravity become noticeable?   “Gravity only becomes
noticeable if one (or both) of the objects has a lot of mass, such as the Earth.”

Gravity disappears when you are above the atmosphere. True or False? This is false
Gravity doesn’t disappear just because you are above the atmosphere.If an object is  above the
Earth’s atmosphere, there will still be a strong force of gravity pulling it towards the center of the Earth.

According to the text, how long does it take the International Space Station (ISS) to orbit Earth?       It takes 90 minutes  for astronauts and the ISS to orbit around the world

Who first stated that all objects are attracted towards each other by gravity? Isaac Newton was the
first who stated that objects were attracted toward

Find six words in the text that have a suffix.  Attracted,  pulled, pulling, noticeable, weightless and
gravitation

Gravity