Post on 15-Jan-2016
ESSENTIAL QUESTIONESSENTIAL QUESTION
How do I How do I recognize the recognize the
units of measure units of measure for distance, time for distance, time
and speed?and speed?
DISTANCEDISTANCE
metersmeters mm
kilometerskilometers kmkm
centimeterscentimeters cmcm
millimetersmillimeters mm mm
milesmiles mimi
inchesinches inin
feetfeet ft ft
TIMETIME
secondsseconds ss
minutesminutes minmin
hourshours hrhr
millisecondsmilliseconds msms
SPEEDSPEED
Since speed isSince speed is
distancedistance
divided bydivided by
timetime,,
the units of speed arethe units of speed are
the units of distancethe units of distance
divided bydivided by
the units of timethe units of time
SPEEDSPEED
meters per second m/smeters per second m/s
meters per hour m/hrmeters per hour m/hr
kilometers per hour km/hrkilometers per hour km/hr
miles per hour mphmiles per hour mph
centimeters per min cm/mincentimeters per min cm/min
feet per second ft/sfeet per second ft/s
meters per millisecond m/msmeters per millisecond m/ms
List d= , t= , v=List d= , t= , v=
A man runs 200 meters in 25 A man runs 200 meters in 25 seconds. What is his average speed?seconds. What is his average speed?
d=d=
t=t=
v=v=
List d= , t= , v=List d= , t= , v=
A man runs 200 meters in 25 A man runs 200 meters in 25 seconds. What is his average speed?seconds. What is his average speed?
d= 200 md= 200 m
t= 25 st= 25 s
v= ___ m/sv= ___ m/s
What formula should you use?What formula should you use?
A man runs 200 meters in 25 A man runs 200 meters in 25 seconds. What is his average speed?seconds. What is his average speed?
d= 200 md= 200 m
t= 25 st= 25 s
v= ___ m/sv= ___ m/s
What formula should you use?What formula should you use?
A man runs 200 meters in 25 A man runs 200 meters in 25 seconds. What is his average speed?seconds. What is his average speed?
d= 200 m v = d / td= 200 m v = d / t
t= 25 st= 25 s
v= ___ m/sv= ___ m/s
Substitute the variables.Substitute the variables.
A man runs 200 meters in 25 A man runs 200 meters in 25 seconds. What is his average speed?seconds. What is his average speed?
d= 200 m v = d / td= 200 m v = d / t
t= 25 st= 25 s
v= ___ m/sv= ___ m/s
Substitute the variables.Substitute the variables.
A man runs 200 meters in 25 A man runs 200 meters in 25 seconds. What is his average speed?seconds. What is his average speed?
d= 200 m v = d / td= 200 m v = d / t
t= 25 st= 25 s v = (200m) / (25s)v = (200m) / (25s)
v= ___ m/sv= ___ m/s
Solve.Solve.
A man runs 200 meters in 25 A man runs 200 meters in 25 seconds. What is his average speed?seconds. What is his average speed?
d= 200 m v = d / td= 200 m v = d / t
t= 25 st= 25 s v = (200m) / (25s)v = (200m) / (25s)
v= ___ m/sv= ___ m/s
Solve.Solve.
A man runs 200 meters in 25 A man runs 200 meters in 25 seconds. What is his average speed?seconds. What is his average speed?
d= 200 m v = d / td= 200 m v = d / t
t= 25 st= 25 s v = (200m) / (25s)v = (200m) / (25s)
v= ___ m/s v = 8 ____v= ___ m/s v = 8 ____
List the units of measure.List the units of measure.
A man runs 200 meters in 25 A man runs 200 meters in 25 seconds. What is his average speed?seconds. What is his average speed?
d= 200 m v = d / td= 200 m v = d / t
t= 25 st= 25 s v = (200m) / (25s)v = (200m) / (25s)
v= ___ m/s v = 8 ____v= ___ m/s v = 8 ____
List the units of measure.List the units of measure.
A man runs 200 meters in 25 A man runs 200 meters in 25 seconds. What is his average speed?seconds. What is his average speed?
d= 200 m v = d / td= 200 m v = d / t
t= 25 st= 25 s v = (200m) / (25s)v = (200m) / (25s)
v= ___ m/s v = 8 m/sv= ___ m/s v = 8 m/s
List d= , t= , v=List d= , t= , v=
A toy car travels at 2.5 m/s for 5 A toy car travels at 2.5 m/s for 5 seconds. How far did it go? seconds. How far did it go?
d=d=
t=t=
v=v=
List d= , t= , v=List d= , t= , v=
A toy car travels at 2.5 m/s for 5 A toy car travels at 2.5 m/s for 5 seconds. How far did it go? seconds. How far did it go?
d=d=
t= 5 st= 5 s
v= 2.5 m/sv= 2.5 m/s
What formula should you use?What formula should you use?
A toy car travels at 2.5 m/s for 5 A toy car travels at 2.5 m/s for 5 seconds. How far did it go? seconds. How far did it go?
d=d= d = vtd = vt
t= 5 st= 5 s
v= 2.5 m/sv= 2.5 m/s
Substitute into the formula.Substitute into the formula.
A toy car travels at 2.5 m/s for 5 A toy car travels at 2.5 m/s for 5 seconds. How far did it go? seconds. How far did it go?
d=d= d = vtd = vt
t= 5 st= 5 s d = (2.5 m/s)(5 s)d = (2.5 m/s)(5 s)
v= 2.5 m/sv= 2.5 m/s
Solve.Solve.
A toy car travels at 2.5 m/s for 5 A toy car travels at 2.5 m/s for 5 seconds. How far did it go? seconds. How far did it go?
d=d= d = vtd = vt
t= 5 st= 5 s d = (2.5 m/s)(5 s)d = (2.5 m/s)(5 s)
v= 2.5 m/sv= 2.5 m/s
Solve.Solve.
A toy car travels at 2.5 m/s for 5 A toy car travels at 2.5 m/s for 5 seconds. How far did it go? seconds. How far did it go?
d=d= d = vtd = vt
t= 5 st= 5 s d = (2.5 m/s)(5 s)d = (2.5 m/s)(5 s)
v= 2.5 m/sv= 2.5 m/s d = 12.5 ___d = 12.5 ___
List the units of measure.List the units of measure.
A toy car travels at 2.5 m/s for 5 A toy car travels at 2.5 m/s for 5 seconds. How far did it go? seconds. How far did it go?
d=d= d = vtd = vt
t= 5 st= 5 s d = (2.5 m/s)(5 s)d = (2.5 m/s)(5 s)
v= 2.5 m/sv= 2.5 m/s d = 12.5 ___d = 12.5 ___
List the units of measure.List the units of measure.
A toy car travels at 2.5 m/s for 5 A toy car travels at 2.5 m/s for 5 seconds. How far did it go? seconds. How far did it go?
d=d= d = vtd = vt
t= 5 st= 5 s d = (2.5 m/s)(5 s)d = (2.5 m/s)(5 s)
v= 2.5 m/sv= 2.5 m/s d = 12.5 md = 12.5 m
List d= , t= , v=List d= , t= , v=
A bee flew across a 12 meter wide A bee flew across a 12 meter wide room at 3 m/s. How much time did room at 3 m/s. How much time did this take?this take?
d=d=
t=t=
v=v=
List d= , t= , v=List d= , t= , v=
A bee flew across a 12 meter wide A bee flew across a 12 meter wide room at 3 m/s. How much time did room at 3 m/s. How much time did this take?this take?
d= 12 md= 12 m
t=t=
v= 3 m/sv= 3 m/s
Write the formula.Write the formula.
A bee flew across a 12 meter wide A bee flew across a 12 meter wide room at 3 m/s. How much time did room at 3 m/s. How much time did this take?this take?
d= 12 md= 12 m
t=t=
v= 3 m/sv= 3 m/s
Write the formula.Write the formula.
A bee flew across a 12 meter wide A bee flew across a 12 meter wide room at 3 m/s. How much time did room at 3 m/s. How much time did this take?this take?
d= 12 md= 12 m t = d / vt = d / v
t=t=
v= 3 m/sv= 3 m/s
Substitute.Substitute.
A bee flew across a 12 meter wide A bee flew across a 12 meter wide room at 3 m/s. How much time did room at 3 m/s. How much time did this take?this take?
d= 12 md= 12 m t = d / vt = d / v
t=t=
v= 3 m/sv= 3 m/s
Substitute.Substitute.
A bee flew across a 12 meter wide A bee flew across a 12 meter wide room at 3 m/s. How much time did room at 3 m/s. How much time did this take?this take?
d= 12 md= 12 m t = d / vt = d / v
t=t= = (12 m) / (3 m/s) = (12 m) / (3 m/s)
v= 3 m/sv= 3 m/s
Solve.Solve.
A bee flew across a 12 meter wide A bee flew across a 12 meter wide room at 3 m/s. How much time did room at 3 m/s. How much time did this take?this take?
d= 12 md= 12 m t = d / vt = d / v
t=t= = (12 m) / (3 m/s) = (12 m) / (3 m/s)
v= 3 m/sv= 3 m/s
Solve.Solve.
A bee flew across a 12 meter wide A bee flew across a 12 meter wide room at 3 m/s. How much time did room at 3 m/s. How much time did this take?this take?
d= 12 md= 12 m t = d / vt = d / v
t=t= = (12 m) / (3 m/s) = (12 m) / (3 m/s)
v= 3 m/sv= 3 m/s t = 4 ___t = 4 ___
Write the units of measure.Write the units of measure.
A bee flew across a 12 meter wide A bee flew across a 12 meter wide room at 3 m/s. How much time did room at 3 m/s. How much time did this take?this take?
d= 12 md= 12 m t = d / vt = d / v
t=t= = (12 m) / (3 m/s) = (12 m) / (3 m/s)
v= 3 m/sv= 3 m/s t = 4 ___t = 4 ___
Write the units of measure.Write the units of measure.
A bee flew across a 12 meter wide A bee flew across a 12 meter wide room at 3 m/s. How much time did room at 3 m/s. How much time did this take?this take?
d= 12 md= 12 m t = d / vt = d / v
t=t= = (12 m) / (3 m/s) = (12 m) / (3 m/s)
v= 3 m/sv= 3 m/s t = 4 st = 4 s