Vocab
Laws
Gravitational Force
Mass and Weight
Inertia and Orbit
100
An attractive force between 2 objects
What is gravity
100
According to Newton, and object at rest will...
What is, stay at rest
100

Why does your computer have more gravitational effect on you than Mars?

Mars is far away

100
If a robot went from Earth to Jupiter would the robot's mass change?
no
100

What would happen to the moon's orbit if there was no gravity?

it would continue in a straight path and travel out into space

200
A push or a pull
What is force
200
According to Newton, an object in motion will...
What is, stay in motion
200

Which has a stronger gravitational pull on you: the moon or Mars

The moon

200
If a robot went form Earth to Jupiter, would the robot's weight change?
yes
200
What would happen to the moon's orbit it there was no inertia?
It would crash into the Earth
300
The amount of matter in an object
What is mass
300

Do all objects have some mass and therefore some gravity?

Yes

300

An arrow that shows the size and direction of a force

a vector

300
The tool do we use to measure mass?
What is triple beam balance or scale
300
What two forces combine to create a planet's or moon's orbit?
inertia and gravity
400
The tendancy of an object to resit a change in motion
What is inertia
400
According to Newton, what can cause an object to no longer be in motion or at rest
What is a force
400
The two factors that and effect the strength of gravity
What is distance and mass
400

Why does an astronaut in orbit feel "weightless".

They are constantly falling around the Earth (free fall)

400

What would happen to the Earth's orbit if the Sun's gravity increased a bit.

The orbit would be less circular

500
The force of gravity on an object
What is weight
500

This law states that every object attracts every other object

What is the Law of Universal Gravitation

(or just the Law of Gravity)

500
Why are you not affected by Jupiter's gravitational pull?
We are too far away from Jupiter
500
Explain the difference between Mass and Weight
Mass is the amount of matter contained in an object, while weight is the force of gravity pushing down on that mass
500
What would happen to the Earth's orbit it there was no inertia?
The Earth would be pulled into the sun
M
e
n
u