Review Chapter 6 Section 1 Question Preview (ID: 39851)


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What is the formula we use for final velocity?
a) Vf =a*t
b) Vf=a/t
c) Vf=d*t
d) Vf=9.8/d

Give an example of a unit for final velocity. How many units should you have?
a) meters
b) m/s
c) m/s/s
d) seconds

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

What is the formula we use to find the distance of an object that is falling?
a) d=(v*t ^2)/2
b) d=(a*t)/2
c) d=(v*t)/2
d) d=(a*t ^2)/2

What is the number we use to represent gravitational acceleration on earth?
a) 9.8 m/s/s
b) 9.8 m/s
c) 91.63 m/s/s
d) 1.63 m/s

Give an example of a unit for distance.
a) m/s/s
b) m/s
c) seconds
d) meters

How far has an object fallen if it takes 10 seconds to fall from a cliff to the ground?
a) 490 meters
b) 120 meters
c) 625 meters
d) 293 meters

Give an example of a unit for time.
a) meters
b) seconds
c) m/s
d) m/s/s

What is the formula we use to find the time it take for an object that is falling?
a) The square root of (2a/9.8)
b) The square root of (2v/9.8)
c) (2d/9.8)
d) The square root of (2d/9.8)

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) 63.89 seconds
b) 4,081.63 seconds
c) 4,000 seconds
d) 13.21 seconds

At what velocity will the skydiver be traveling when she hits the ground from 2,000 meters?
a) 1232.20 m/s
b) 626.10 m/s
c) 643.2 m/s
d) 12.235 m/s

What is the formula for average velocity?
a) Vavg=Vf/2
b) Vavg=Vf/9.8
c) Vavg=t/2
d) Vavg=t/9.8

At what velocity will the skydiver be traveling when she hits the ground from 2,000 meters and after 63.89 seconds?
a) 626.08 m/s
b) 313.04 m/s
c) 325.45 m/s
d) 939.23 m/s

Name a force
a) air resitance
b) inertia
c) Newton
d) free fall

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