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WorksheetsFree Fall
Total questions: 20
Worksheet time: 55mins
Name
Class
Date
1.
What happens to the velocity of a ball as it is dropped off a cliff?
a)
It decreases at a uniform rate
b)
It increases at a uniform rate
c)
It is constant
d)
It increases at a non-uniform rate
2.
In a normal environment, why does a bowling ball and feather hit the ground at different times when dropped from the same height?
a)
They don't; they hit the ground at the same time.
b)
One is more dense than the other.
c)
One is heavier than the other.
d)
Air resistance
3.
A ball is thrown in the air with an initial velocity of 40 m/s. How long does it take to reach back to the point it was thrown from?
a)
4 seconds
b)
2 seconds
c)
6 seconds
d)
8 seconds
4.
A ball is thrown up in the air with an initial velocity of 40 m/s. What is the ball's velocity after 2 seconds?
a)
0 m/s
b)
20 m/s traveling upward
c)
20 m/s traveling downward
d)
40 m/s traveling downward
5.
If you throw a baseball straight up, what is its velocity at the highest point?
a)
9.8 m/s2
b)
9.8 m/s
c)
0 m/s2
d)
0 m/s
6.
A ball is thrown upwards and caught when it comes back down. In the absence of air resistance, the speed of the ball when caught would be
a)
less than the speed it had when thrown upwards.
b)
more than the speed it had when thrown upwards.
c)
the same as the speed it had when thrown upwards.
7.
A baseball catcher throws a ball vertically upward and catches it in the same spot as it returns to the mitt. At what point in the ball’s path does it experience zero velocity and nonzero acceleration at the same time?
a)
midway on the way up
b)
at the top of its path
c)
the instant it leaves the catcher’s hand
d)
the instant before it arrives in the catcher’s mitt
8.
Which would hit the ground first if dropped from the same height in a vacuum—a feather or a metal bolt?
a)
the feather
b)
the metal bolt
c)
They would hit the ground at the same time.
d)
They would be suspended in a vacuum.
9.
A freely falling object starts from rest. After falling for 6 seconds, it will have a speed of about
a)
6m/s
b)
30m/s
c)
60m/s
d)
300m/s
10.
1. An object free falls for 3.5 seconds. How far does it fall?
a)
120.05 m
b)
17.15 m
c)
60.03 m
d)
34.3 m
11.
What does it mean for an object to be in free fall?
a)
Only air resistance acting on the object.
b)
Gravity is the only force acting on the obejct.
c)
Any object that is in downward motion.
12.
A ball is thrown vertically upward with a speed of 25 𝑚/𝑠. How long does it take the ball to reach its highest point?
a)
2.5
b)
3.5
c)
25
d)
35
13.
A ball is thrown up in the air with an initial velocity of 40 m/s. What is the ball's velocity after 2 seconds?
a)
0 m/s
b)
~20 m/s traveling upward
c)
~20 m/s traveling downward
d)
~40 m/s traveling downward
14.
A pumpkin is dropped from a 35 m building. What is its initial velocity (vi)?
a)
9.8 m/s2
b)
35 m
c)
0 m/s
d)
9.8 m/s
15.
What is terminal velocity?
a)
The speed an object dies at
b)
The highest speed an object reaches because air resistance offsets gravity in the real world
c)
When an object reaches its final velocity of zero
d)
Only happens in physics world
16.
What is acceleration of an object traveling upward during "free fall"?
a)
+9.8m/s2
b)
-9.8m/s2
c)
9.8 m/s
d)
-9.8m/s
17.
how far does an object fall in 3 seconds when dropped (use g=10 m/s2)
a)
45 m
b)
10m
c)
3 m
d)
30 m
18.
Jayonna free falls for 5.00 seconds and has a final velocity of 49.0 m/s. What was the height of the cliff she jumped off of?
a)
122.5 m
b)
250 M
c)
24.5 m
d)
0 m
19.
Cody jumps up 0.700 m with a speed of 3.70 m/s. What is his hang time?)
a)
0.378 seconds
b)
0.755 seconds
c)
36.3 seconds
d)
He will stay suspended forever.
20.
A free falling object falls for 2.4 s. What is its displacement?
a)
-28.2 m
b)
-11.76 m
c)
-56.45 m
d)
-9.8 m
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