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236 CFU #1, Pretest Flashcards | StudBud
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236 CFU #1, Pretest
236 CFU #1, Pretest
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StudBud Administration
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Projectile Motion, Gravity, Kickball Experiment and the Scientific Method
Flashcards
18 cards
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Questions
18
Answers
1
You started out in this class with an 80 and now you have a 90. What is % change?
12.5%
20 %
10 %
25 %
2
What variable would have the greatest effect on an object's drag, or air resistance?
mass
weight
diameter (width)
length
3
Which word below means: The “effect” that you will be measuring.
Control, or "The Control Group"
The Independent Variable
The Hypothesis
The Dependent Variable
4
What is the vocabulary word used to describe air resistance?
gravity
launch angle
drag
initial velocity
5
Why is the blue gravitational force line so long in this picture?
Because Earth's velocity is so high
Because the gravity between Earth and sun is greatest here
Because the Earth's orbit is furthest at this point
Because the sun's velocity is so high
6
When Earth is at this position, the force of attraction between it and the sun is at the
the middle value for the year
lowest value for the year
highest value for the year
7
In our projectile motion sim, the word "range" means...
drag
height
distance
time
8
Which of these cannonball shots experiences the most gravity?
the one that travels the shortest distance
the invisible one
the one that travels the farthest distance
the one that travels the middle distance
9
On the Evander football field, distance is measured in
yards
inches
meters
feet
10
In our projectile motion sim, range, or distance is measured in...
inches
yards
feet
meters
11
When Earth's orbit is at this position, how can we describe the sun's gravitational force
the sun's gravity is at its midpoint value at this position
the sun's gravity is lowest at this position
the sun's gravity cannot be felt on the moon
the sun's gravity is greatest at this position
12
What exactly was the dependent variable in our ball kicking experiment?
the big, bouncy ball
the density of the ball being kicked
the spot where the kicker kicked from
the distance that the ball traveled in the air
13
Why did we need to have at least two different balls to kick in this experiment?
One was the hypothesis; the other the "Independent Variable"
One was "control"; other was the "Dependent Variable"
One was the "control"; other was the "Independent Variable"
One was "Dependent Variable"; other the Independent Variable
14
What is the meaning of the red line in this image?
It represents Earth's velocity
It represents the gravitational pushing force
It represents Earth's acceleration
It represents the gravitational pushing force
15
When in this position with respect to the sun, Earth is traveling at
it's lowest velocity of the year
it's lowest velocity of the year
it's highest velocity of the month
it's highest velocity of the year
16
The independent variable is the ________ and the dependent variable is the _________.
effect, cause
cause, effect
reaction, action
action, reaction
17
The force of gravity is determined by both
mass of objects and distance between objects
mass of objects and density of objects
mass of objects and volume of objects
distance between objects and density of objects
18
The bouncy ball kick distance was 20 yards, the soccer ball's was 25 yards. What is % change?
5 %
25 %
15 %
20%
