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WorksheetsGravity and Orbits Inertia Orbital Motion
Total questions: 22
Worksheet time: 14mins
Name
Class
Date
1.
What are the factors which combine to to keep celestial bodies in orbit?
a)
Air Resistance and Gravity
b)
Gravity and Inertia
c)
Inertia and orbital speed
d)
Orbital speed and gravity
2.
The tendency of a moving object to continue moving in a straight line or a stationary object to remain in place is called:
a)
Orbital Speed
b)
Gravity
c)
Terminal Velocity
d)
Inertia
3.
All objects are attracted to each other by the force of:
a)
Gravity
b)
Inertia
c)
Orbital Speed
d)
Terminal Velocity
4.
The strength of the force of gravity depends on:
a)
the masses of the objects and their speeds.
b)
the masses of the objects and the distance between them.
c)
the weight of the objects and their speeds.
d)
the masses of the objects and their weights.
5.
Which planet in our solar system will have the fastest orbital speed?
a)
Venus
b)
Earth
c)
Saturn
d)
Mercury
6.
What did Kepler discover about planets and their orbital speed?
a)
Planets closest to the Sun will orbit with the fastest orbital speed.
b)
Planets with the greatest mass will orbit the Sun with the fastest orbital speed.
c)
Planets furthest from the Sun will orbit with the fastest orbital speed.
d)
Planets with the least mass will orbit the Sun with the fastest orbital speed.
7.
Which law states that every object in the universe attracts every other object in the universe?
a)
Newton’s first law of motion
b)
Newton’s second law of motion
c)
The law of universal gravitation
d)
The law of inertia
8.
According to Kepler’s discoveries, planets orbit around the Sun:
a)
in an oval shape.
b)
in perfect circles.
c)
in an ellipse.
d)
in a rectangular shape.
9.
As mass increases, gravity ________________.
a)
Increases
b)
Decreases
c)
Stays the same
10.
As mass decreases, gravity ______________________.
a)
Increases
b)
Decreases
c)
Stays the same
11.
As distance increases, gravity __________________.
a)
Increases
b)
Decreases
c)
Stays the same
12.
As distance decreases, gravity ___________________.
a)
Increases
b)
Decreases
c)
Stays the same
13.
What would happen to your mass if you traveled to a planet that was more massive than Earth?
a)
Your mass would stay the same
b)
Your mass would increase
c)
Your mass would decrease
14.
What would happen to your weight if you traveled to a planet that was more massive than Earth?
a)
Your weight would stay the same
b)
Your weight would increase
c)
Your weight would decrease
15.
What would happen to the planets in our solar system if the Sun suddenly disappeared?
a)
They would explode
b)
They would fly off into space
c)
They would all crash into Mars
16.
All objects are attracted to each other by the force of _____________________.
a)
Inertia
b)
Terminal Velocity
c)
Gravity
d)
Weight
17.
The tendency of an object to resist a change in motion is called _____________________.
a)
Inertia
b)
Gravity
c)
Air Resistance
d)
Orbital Speed
18.
Who was the scientist responsible for discovering the planetary laws of motion?
a)
Newton
b)
Miss. Montano
c)
Ptolemy
d)
Kepler
19.
What is weight?
a)
Force acting on all objects in the universe
b)
tendency to resist change
c)
force of gravity on an object
d)
mass plus distance
20.
Suppose the Moon were closer to Earth. How would the force of gravity between Earth and the Moon be different?
a)
There would be no difference
b)
There would be a weaker force of gravity between them
c)
There would be a stronger force of gravity
21.
What is mass?
a)
amount of matter an object has
b)
amount of inertia an object has
c)
amount of gravity an object has
d)
amount of density an object has
22.
What is a force?
a)
A push
b)
A pull
c)
A push or a pull
d)
A push or a pull in a specific direction
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