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Review Chapter 6 Section 1
Test Description: Science
Instructions: Answer all questions to get your test result.
1) What is the formula we use for final velocity?
A
Vf=d*t
B
Vf=a/t
C
Vf =a*t
D
Vf=9.8/d
2) Give an example of a unit for final velocity. How many units should you have?
A
seconds
B
meters
C
m/s
D
m/s/s
3) If the acceleration due to gravity is 1.63 m/s/s on the moon, what is the speed of an object if it fell for 5 seconds.
A
V=12.3 m
B
V=8.15 m
C
V=8.15 m/s
D
V=12.3 m/s
4) What is the formula we use to find the distance of an object that is falling?
A
d=(a*t ^2)/2
B
d=(v*t)/2
C
d=(a*t)/2
D
d=(v*t ^2)/2
5) What is the number we use to represent gravitational acceleration on earth?
A
9.8 m/s
B
1.63 m/s
C
91.63 m/s/s
D
9.8 m/s/s
6) Give an example of a unit for distance.
A
seconds
B
m/s
C
m/s/s
D
meters
7) How far has an object fallen if it takes 10 seconds to fall from a cliff to the ground?
A
625 meters
B
120 meters
C
490 meters
D
293 meters
8) Give an example of a unit for time.
A
meters
B
seconds
C
m/s/s
D
m/s
9) What is the formula we use to find the time it take for an object that is falling?
A
The square root of (2v/9.8)
B
The square root of (2a/9.8)
C
The square root of (2d/9.8)
D
(2d/9.8)
10) A person bungee jumps out of an airplane that is at an altitude of 20,000 meters. If the parachute does not open, how long will it take for the skydiver to hit the ground?
A
13.21 seconds
B
4,000 seconds
C
63.89 seconds
D
4,081.63 seconds
11) At what velocity will the skydiver be traveling when she hits the ground from 2,000 meters?
A
12.235 m/s
B
643.2 m/s
C
626.10 m/s
D
1232.20 m/s
12) What is the formula for average velocity?
A
Vavg=Vf/2
B
Vavg=t/9.8
C
Vavg=Vf/9.8
D
Vavg=t/2
13) At what velocity will the skydiver be traveling when she hits the ground from 2,000 meters and after 63.89 seconds?
A
939.23 m/s
B
313.04 m/s
C
325.45 m/s
D
626.08 m/s
14) Name a force
A
free fall
B
Newton
C
inertia
D
air resitance
*select an answer for all questions
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