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WorksheetsGravity
Total questions: 29
Worksheet time: 18mins
Name
Class
Date
1.
Which System has the greater gravitational pull between the two objects?
a)
System 1
b)
System 2
c)
Same: there is no gravitational attraction between the two objects
2.
Which system has the greater gravitational attraction between the two objects (if any)?
a)
System A
b)
System B
c)
Same gravitational attraction fro System A and System B
3.
Which model has greater gravitational attraction (if any)
a)
Model A
b)
Model B
c)
Both Model A and Model B (same gravity)
4.
As mass increases, what happens to gravitational force?
a)
increases
b)
decreases
c)
stays the same
d)
i don't know
5.
Look at the picture. Is the force of gravity on the boy a push or a pull?
a)
Pull
b)
Push
6.
Which of the following will not change in different gravitational fields?
a)
weight
b)
force
c)
mass
d)
pounds
7.
Which model has greater gravitational attraction (if any)
a)
Model A
b)
Model B
c)
Both Model A and Model B (same gravity)
8.
Why a ball falls to the ground?
a)
Earth's force of gravity is GREATER than the ball's, so the ball gets attracted to the ground.
b)
Earth's force of gravity is LESS than the ball's, so the ball gets attracted to the ground.
9.
Which has more mass, Earth or the Moon?
a)
Earth
b)
Moon
c)
The same
10.
Which has a STRONGER force of gravity, Earth or the Moon?
a)
Earth
b)
Moon
11.
What is mass?
a)
How much MATTER makes up an object.
b)
How much GRAVITY is pulling an object.
12.
What keeps the planets in orbit around the sun?
a)
gravity
b)
friction
c)
density
d)
distance
13.
Isaac Newton got into a bitter feud with _____
a)
Tycho Brahe
b)
Robert Hooke
c)
Galileo Galilei
d)
Johannes Kepler
14.
Gravity from an object _____
a)
stops at it's surface
b)
stops after about 10,000 km
c)
stops at the edge of the solar system
d)
goes on forever
15.
Most of the Universe is _____
a)
filled with planets
b)
filled with stars
c)
filled with gas and dust
d)
pretty empty
16.
You can think of it as "how much stuff makes up an object"
a)
size
b)
brightness
c)
mass
d)
density
17.
Which term is defined as "how much mass is inside a given volume"?
a)
size
b)
brightness
c)
weight
d)
density
18.
When the distance from an object is doubled, the force of gravity drops by a factor of _____
a)
2
b)
4
c)
10
d)
16
19.
Go 3 times farther away and the force of gravity drops by _____
a)
3 times
b)
6 times
c)
9 times
d)
12 times
20.
If there are no other forces acting on them, two objects with mass will _____
a)
repel
b)
stay where they are
c)
move uniformly toward each other
d)
accelerate toward each other
21.
What can be described as "falling and missing the ground"?
a)
accelerating
b)
free-falling
c)
orbiting
d)
attaining escape velocity
22.
A rock thrown hard enough sideways will orbit the Earth once every _____
a)
9 minutes
b)
90 minutes
c)
9 hours
d)
90 hours
23.
Who realized that planetary orbits aren't necessarily circular?
a)
Isaac Newton
b)
Galileo Galilei
c)
Johannes Kepler
d)
Robert Hooke
24.
The planets of our solar system have orbits that are _____
a)
circular
b)
ellipses
c)
parabolas
d)
hyperbolas
25.
In order to break free of a planet's gravity, an object must be moving faster than the _____
a)
escape velocity
b)
getaway acceleration
c)
break-away pace
d)
liberation altitude
26.
What is the escape velocity of the Earth?
a)
about 11 kilometers per second
b)
about 110 kilometers per second
c)
about 11 kilometers per hour
d)
about 110 kilometers per hour
27.
For an object that misses the Earth but still passes us at escape velocity, the orbit is _____
a)
a circle
b)
an ellipse
c)
a parabola
d)
a hyperbola
28.
At the height of the space station, gravity, compared to that at Earth's surface, is _____
a)
about 0.9% as strong
b)
about 9% as strong
c)
about 49% as strong
d)
about 90% as strong
29.
In space you have the same mass as you do on Earth, but no _____
a)
microgravity
b)
weight
c)
density
d)
pressure
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