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Gravity
Gravity
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#Middle school quiz on how #gravity affects objects in the #solar system and on #Earth.
Flashcards
20 cards
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Questions
20
Answers
1
If you were located halfway between Earth and the Sun, in which direction would you be pulled?
Toward the Sun
Toward Earth
Neither
Float off in a random direction
2
When does a planet move fastest in its orbit?
It always moves at the same speed.
It is constantly speeding up.
At farthest point from the sun (aphelion)
At its closest point to the sun (perihelion)
3
What changes if you go to the Moon?
Weight
Mass
Height
Age
4
Why do
all
objects fall at the same rate on the Moon?
The Moon has no atmosphere
The Moon has no water
The Moon is much smaller than Earth
The Moon has no gravity
5
Why don’t you feel the force of attraction between you and Mars?
Mars is too small
There is no attractive force
There is too much air resistance
Mars is too far away
6
As distance between two objects increases, the gravitational force __________________.
Decreases
Increases
Stays the same
May increase or decrease
7
Which of the following objects has the most gravity?
A feather
The Moon
You
A car
8
We know an object’s mass and the amount of gravity pulling it—what force can we calculate?
Weight
Speed
Height
Air resistance
9
Gravity must overcome an object’s ______________ to pull it down.
Sound
Inertia
Shape
Color
10
How long does it take Earth to complete one rotation?
365 days
30.5 days
24 hours
72 hours
11
If a satellite falls out of orbit and comes crashing to the ground, what decreased?
Gravity
The satellite's forward velocity (speed)
Centripetal force
The satellite's mass
12
Why can't you feel a tree's force of gravity when you walk by it?
It is too far away
It has too much inertia
It does not have a force of gravity
Its mass is too small
13
Which of the following planets has the greatest gravitational pull?
Neptune
Jupiter
Mercury
Earth
14
How long does it take Earth to complete one revolution?
24 hours
72 hours
30.5 days
365 days
15
We experience/feel the force of gravity as ___________.
Weight
Speed
Mass
A push
16
Satellites are ___________________________.
Not affected by gravity
Not moving
Affected by air resistance
In free fall
17
Even though gravity acts over great distances & determines planetary motions, gravity is
Not a force
The most powerful force
A powerful force
A weak force
18
What causes a hammer and a feather to fall at different speeds on Earth?
Centripetal force
Gravity
Chance
Air resistance
19
What would the mass of an 80 kg person be in space?
80 kg
40 kg
60 kg
0 kg
20
If you fell in this tunnel through the center of Earth, where would you eventually end up?
In the center of the Earth
Outer space
Back where you started
On the other side of the Earth
