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Speed, Distance, Time Calculations
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Speed, Distance, Time Calculations PowerPoint.pdfA train travelled 555 miles at an average speed of 60 mph. How long did the journey take? D S T Time = Distance Speed 555 60 = = 9•25

Mar 13, 2020

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Page 1: Speed, Distance, Time Calculations PowerPoint.pdfA train travelled 555 miles at an average speed of 60 mph. How long did the journey take? D S T Time = Distance Speed 555 60 = = 9•25

Speed, Distance, Time Calculations

Page 2: Speed, Distance, Time Calculations PowerPoint.pdfA train travelled 555 miles at an average speed of 60 mph. How long did the journey take? D S T Time = Distance Speed 555 60 = = 9•25

Speed is how fast something is going or the distance something moves in a given amount of time.

Speed = distance

----------

time

Page 3: Speed, Distance, Time Calculations PowerPoint.pdfA train travelled 555 miles at an average speed of 60 mph. How long did the journey take? D S T Time = Distance Speed 555 60 = = 9•25

Speed is measured in miles per hour

Speed is also measured in kilometers per hour

Measurement Unit

Speed Miles/Hour or Km/Hour

Distance Miles/Kilometers

Time Hours

Page 4: Speed, Distance, Time Calculations PowerPoint.pdfA train travelled 555 miles at an average speed of 60 mph. How long did the journey take? D S T Time = Distance Speed 555 60 = = 9•25

Jack runs around the 1 mile track in 7 minutes. What is his speed?

- Speed is measured here in miles/hour

- How do we get 7 minutes into hours? - 7 minutes 1 hour

60 minutes

7/60 = .12 hours

Page 5: Speed, Distance, Time Calculations PowerPoint.pdfA train travelled 555 miles at an average speed of 60 mph. How long did the journey take? D S T Time = Distance Speed 555 60 = = 9•25

15 mins = _____ Hours

.25 Hours

Page 6: Speed, Distance, Time Calculations PowerPoint.pdfA train travelled 555 miles at an average speed of 60 mph. How long did the journey take? D S T Time = Distance Speed 555 60 = = 9•25

30 minutes = _____ hours

.5 hours

Page 7: Speed, Distance, Time Calculations PowerPoint.pdfA train travelled 555 miles at an average speed of 60 mph. How long did the journey take? D S T Time = Distance Speed 555 60 = = 9•25

3 hours 45 minutes = _____ hours

3.75 Hours

Page 8: Speed, Distance, Time Calculations PowerPoint.pdfA train travelled 555 miles at an average speed of 60 mph. How long did the journey take? D S T Time = Distance Speed 555 60 = = 9•25

D

S T

Page 9: Speed, Distance, Time Calculations PowerPoint.pdfA train travelled 555 miles at an average speed of 60 mph. How long did the journey take? D S T Time = Distance Speed 555 60 = = 9•25

The 3 formulas for Speed, Time & Distance:

Speed = Distance

Time Time =

Distance

Speed Distance = Speed x Time

Remember them from

this triangle:

D

S T

Solving for Speed Solving for Time Solving for Distance

Page 10: Speed, Distance, Time Calculations PowerPoint.pdfA train travelled 555 miles at an average speed of 60 mph. How long did the journey take? D S T Time = Distance Speed 555 60 = = 9•25

D

S T

A windsurfer travelled 28 km in 1 hour 45 mins.

Calculate his speed.

Speed = Distance

Time

28

1.75 =

= 16 km/h

1 hour 45 mins

Answer: His speed was 16 km / hour

Page 11: Speed, Distance, Time Calculations PowerPoint.pdfA train travelled 555 miles at an average speed of 60 mph. How long did the journey take? D S T Time = Distance Speed 555 60 = = 9•25

2 hour 30 mins

Answer: He travelled 125 km

A salesman travelled at an average speed of 50 km/h for 2 hours 30 mins. How far did he travel?

D

S T Distance = Speed x Time

= 50 x 2•5

= 125 km

Page 12: Speed, Distance, Time Calculations PowerPoint.pdfA train travelled 555 miles at an average speed of 60 mph. How long did the journey take? D S T Time = Distance Speed 555 60 = = 9•25

Answer: It took 9 hours 15 minutes

A train travelled 555 miles at an average speed of 60 mph. How long did the journey take?

D

S T Time =

Distance Speed

555 60 =

= 9•25 hours = 9 hours 15 mins

Page 13: Speed, Distance, Time Calculations PowerPoint.pdfA train travelled 555 miles at an average speed of 60 mph. How long did the journey take? D S T Time = Distance Speed 555 60 = = 9•25

Your dad traveled 75 miles in 2.5 hours. What was his speed?

30 miles/hour

Write your equation

Change your units

Fill in the info you know

Solve

Write proper units, circle your answer

Page 14: Speed, Distance, Time Calculations PowerPoint.pdfA train travelled 555 miles at an average speed of 60 mph. How long did the journey take? D S T Time = Distance Speed 555 60 = = 9•25

Yolanda travels 240 kilometers in 4 hours. What was her average speed?

60 miles/hour

Write your equation

Change your units

Fill in the info you know

Solve

Write proper units, circle your answer

Page 15: Speed, Distance, Time Calculations PowerPoint.pdfA train travelled 555 miles at an average speed of 60 mph. How long did the journey take? D S T Time = Distance Speed 555 60 = = 9•25

Mikes speed was 20 km/hour. He traveled for 10 hours. How many kilometers did he drive?

200 kilometers

Write your equation

Change your units

Fill in the info you know

Solve

Write proper units, circle your answer