Gravity Quizlet
fall to the ground more quickly than on Earth
Saturn has more gravitational pull than Earth. On Saturn, a feather will __________.
the force of attraction between objects with mass
What is gravity?
ocean tides
What natural phenomenon occurs on Earth due to the gravitational force of the moon?
Sir Isaac Newton
What scientist is credited with first describing the mathematics of gravity
the closer you are to an object
When will gravity be the strongest?
riding a bike downhill
Which activity is made easier by the force of gravity?
the sun
Which of the following has the strongest gravitational pull?
It pulls objects toward Earth's surface without touching them
Which of the following is true of Earth's gravity?
It pushes or pulls on an object.
Which of the following is true of every force?
The more massive an object, the less gravitational force it exerts.
Which of the following statements about gravity is NOT correct?
gravity and air resistance
Which two forces are acting on a falling object?
to overcome Earth's gravitational force
Why do satellites launched from Earth need to reach a certain speed to reach outer space?
because the sun has more mass than any object in the solar system
Why does the sun exert a stronger gravitational pull on Earth than the moon does?
because the moon has less mass than Earth
Why is the force of gravity weaker on the moon than on Earth?
gravity
Jeannie put her soccer ball on the ground on the side of a hill. What force acted on the soccer ball to make it roll down the hill?
Gravity starts to pull her back down.
Jenny is jumping up in the air. What happens at the highest point of her jump?
Jupiter
Jupiter has more mass than any other planet in our solar system. Mercury has less mass than any other planet. Which planet has the most gravity?
Mercury has less gravity than Earth.
A yo-yo falls more slowly on Mercury than on Earth. What does this show?
not bounce at all
An astronaut in a space shuttle has a bouncy ball. The astronaut lets go of the ball. There is no gravity. The bouncy ball will __________.
an astronaut can jump much further on the moon than on Earth
An astronaut will feel less gravitational pull on the moon than on Earth. Therefore __________.
Observe baking soda react with vinegar.
Catherine is studying the force of gravity in her science class. Which of the following is NOT a way for Catherine to observe the force of gravity?
toward the center of Earth
Gravity on Earth pulls all things __________.
As distance increases, gravity decreases.
How are gravity and distance related?
As mass increases, gravity increases
How are gravity and mass related?
mass
How much gravity an object has depends on its __________.
People would feel so heavy it would be hard to stand up.
Imagine there was no gravity. Which is NOT true?
when an orange falls from a tree
In which case is gravity the main force acting to move an object?
They would hit the ground at the same time
Ty drops a feather and a bowling ball from a high tower. If there were NO AIR RESISTANCE, what would you expect to happen?
weight
What do we call the force of gravity on an object?
Gravity pulls objects toward the center of Earth.
What does it mean when we say gravity "pulls objects down to Earth"?