Free Fall and Gravity Concepts
Authored by Russell Leinbach
Science
8th Grade
NGSS covered
Used 5+ times
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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When a bowling ball and a feather are dropped in a room with air, which object reaches the ground first?
The bowling ball
The feather
Both reach at the same time
It depends on the height they are dropped from
Tags
NGSS.MS-PS2-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If a bowling ball and a feather are dropped in a vacuum chamber (where there is no air), what happens?
The bowling ball falls first.
The feather falls first.
Both fall and hit the ground at the same time.
Neither object falls.
Tags
NGSS.MS-PS2-4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the definition of "free fall" for an object?
When an object is falling very quickly.
When an object is falling without any air resistance.
When gravity is the only force acting on the object.
When an object is falling at a constant speed.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a vacuum, why do objects of different masses fall at the same rate?
The force of gravity is the same for all objects.
The mass of the object cancels out in the acceleration calculation.
Lighter objects are pulled down more strongly in a vacuum.
Heavier objects are pushed up more strongly in a vacuum.
Tags
NGSS.MS-PS2-4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What additional force acts on objects when they fall through the air, compared to falling in a vacuum?
Magnetic force
Air resistance
Buoyant force
Friction from the ground
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which factors determine the amount of air resistance an object experiences while falling?
Only the object's mass.
Only the object's color.
The object's surface area and speed.
The object's temperature and material.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why does a bowling ball fall faster than a feather in the air, even though the bowling ball experiences more air resistance?
The bowling ball's shape is more aerodynamic.
The feather's surface area is too small.
The bowling ball's gravitational force is much larger compared to its air resistance.
The feather creates its own upward air currents.
Tags
NGSS.MS-PS2-4
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