Olivia Buszta - Blue Science Portfolio

Turn/straight 7.3 meters 10sec 0.73m/s
Stop 0 2sec 0m/s
Backpedal 7.3 meters 11sec 0.66m/s
Total 18.3 meters 29 0.63m/s

Velocity Graph

Velocity Project

1. Define the following terms and include pictures if possible:

Motion - ​the action or Speed - ​the rate at which  Position -​ a particular way
in which someone or
process of moving or being someone or something is 
something is placed or
moved. able to move or operate.
arranged.

Distance - a​ n amount of Acceleration - t​ he rate of Terminal Velocity - t​ he
space between two things change of velocity per unit constant speed that a

or people. of time. freely falling object

eventually reaches when

Time - A​ measurement of Initial Velocity - ​The initial the resistance of the
seconds, minutes, hours, velocity, v​i​ , is the velocity medium through which it is
etc. of the object before falling prevents further
acceleration causes a acceleration.
Velocity - ​the speed of change.
something in a given Displacement - ​the moving
direction. Final Velocity - ​the final of something from its place
velocity is the velocity at or position.
the final point of time.
Key Metric units - ​Meters,
seconds, kilograms, Liters

2. What is the difference between Speed and Velocity? Explain using an example
in your own words.

The difference between speed and velocity is that, while speed is simply distance
traveled over time, velocity it a distance traveled over any unit of measurement.

3. Pick 2 cities (minimum 500 miles apart) in the United States or world and
construct a data table and graph showing the amount of hours that it would take
to travel between the 2 cities with the following modes of transportation:

Cities: San Francisco to New York
2,913.7 mi

A. Fastest Runner - ​Usain Bolt, 28 mph
2,913.7/28
104.1 hours

B. Model T Ford - ​45 mph
2913.7/45
64.7 hours

C. Hindenberg - ​84 mph
2913.7/84
34.7 hours

D. Tesla top speed - 1​ 55 mph
2913.7/155
18.8 hours

E. Fastest train - ​268 mph
2913.7/268
10.9 hours

F. F35 Fighter Jet - ​1200 mph
2913.7/1200
2.4 hours

G. Vehicle of your choice - ​Fastest boat - 317.6 mph
2913.7/317.6
9.2 hours

Transportation Speed (mph) Hours

Fastest Runner 28 104.1
64.7
Model T Ford 45 34.7
18.8
Hindenberg 84 10.9
2.4
Tesla 155 9.2

Fastest Train 268

F35 Fighter Jet 1200

Fastest Boat 317.6

*Provide a map showing your cities
*Show Detailed Math Steps

6. Use a math calculation to show how long it would take the F35 Fighter Jet to

get to
A. Sun

T = D/V
T = 9.26 x 107 miles ÷ 1.2 x 103 mph
T = 7.72 x 104​ ​ hours = 77,200.0 hours = 3216.7 days = 8.8 years

B. Saturn

T = D/V
T = 8.86 x 108 miles ÷ 1.2 x 103 mph
T = 7.38 x 10​5​ hours = 738,000 hours/24 = 30750 days/365 = 84.2 years

C. Neptune

T = D/V
T = 2.7 x 109 miles ÷ 1.2 x 103 mph
T = 2.25 x 10​6​ hours = 2,250,000 hours/24 = 93750 days/365 = 256.8 years

(Use scientific notation)

Velocity Worksheet:

1. What is the average speed of a cheetah that sprints 100 m in 4 s? How about if it sprints

50 m in 2 s?

V = D/T V = 50/2

V = 100/4 V = 25 m/s

V = 25 m/s

2. If a car moves with an average speed of 60 km/hr for an hour, it will travel a distance of
60 km. How far will it travel if it continues this average rate for 4 hrs?

D=VxT
D = 60 x 4
D = 240 km

3. A runner makes one lap around a 200 m track in a time of 25.0 s. What was the runner's
average speed? Answer: 8.0 m/s

V = D/T

V = 200/25
V = 8 m/s

4. A motorist travels 406 km during a 7.0 hr period. What was the average speed in km/hr
and m/s? Answers: 58 km/hr, 16 m/s.

V = D/T V = 58/3.625
V = 406/7 V = 16 m/s
V = 58 km/h

5. A bullet is shot from a rifle with a speed of 720 m/s. What time is required for the bullet
to strike a target 3240 m away? Answer: 4.5 s.

T = D/V
T = 3240/720
T = 4.5 s

6. Light from the sun reaches the earth in 8.3 minutes. The speed of light is 3.0 ​×​ 108​ ​ m/s.

In kilometers, how far is the earth from the sun? Answer: 1.5 ​×​ 108​ ​ km.

D=VxT

D = (3.0 x 108​ ​)8.3
D = 1.5 x 10​8​ km

7. *An auto travels at a rate of 25 km/hr for 4 minutes, then at 50 km/hr for 8 minutes, and
finally at 20 km/hr for 2 minutes. Find the total distance covered in km and the average
speed for the complete trip in m/s. Answers: 9 km, 10.7 m/s.

25 km/hr / 60 = 0.417 x 4 = 1.67 km V = D/T
50 km/hr / 60 = 0.83 x 8 = 6.67 km
20 km/hr / 60 = 0.33 x 2 = 0.67 km

Distance = 9.01 km

8. The peregrine falcon is the world's fastest known bird and has been clocked diving
downward toward its prey at constant vertical velocity of 97.2 m/s. If the falcon dives
straight down from a height of 100. m, how much time does this give a rabbit below to
consider his next move as the falcon begins his descent?

T = D/V
T = 100 m / 97.2 m/s
T = 1.02 sec

9. Hans stands at the rim of the Grand Canyon and yodels down to the bottom. He hears his
yodel ​back from the canyon floor​ 5.20 s later. Assume that the speed of sound in air is

340.0 m/s. How deep is the canyon? ​ 5.20/2 = 2.6

D=TxV
D = 2.6 sec x 340 m/s
D = 884 meters