This math topic focuses on calculating speed by converting distances and time into different units. Learners solve problems that involve changing both speed and distance from one set of units to another (e.g., kilometers per minute to meters per second, or centimeters per hour to meters per day). The problems provided range from scenarios involving rockets, bugs, and horses, each requiring unit conversions to determine the correct speed in a new unit such as meters per second, centimeters per day, or millimeters per minute. This advanced practice helps strengthen skills in unit conversion and rate calculations within the context of speed, distance, and time.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Speed - Distance and Time to Speed - Changed Both Units Worksheet

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Speed - Distance and Time to Speed - Changed Both Units
1
A car drives 160mm in 4ms. How fast is this in m/s?
a
0 m/s
b
40 m/s
c
4 m/s
d
0.4 m/s
2
A bacteria moves 120mm in 4d. How fast is this in cm/hr?
a
1,152 cm/hr
b
0.7 cm/hr
c
0.2 cm/hr
d
0.125 cm/hr
3
A car drives 80m in 4s. How fast is this in cm/ms?
a
7 cm/ms
b
32,000,000 cm/ms
c
2 cm/ms
d
3 cm/ms
4
A bug crawls 120mm in 6min. How fast is this in m/s?
a
0.000333 m/s
b
0.7 m/s
c
43.2 m/s
d
0.9 m/s
5
A bug crawls 400cm in 8min. How fast is this in mm/s?
a
8.33 mm/s
b
1,920,000 mm/s
c
3 mm/s
d
4 mm/s
6
A bug crawls 240m in 8hr. How fast is this in cm/d?
a
8,000 cm/d
b
7,200 cm/d
c
720 cm/d
d
72,000 cm/d
7
A bug crawls 160m in 8hr. How fast is this in mm/min?
a
3,333.3 mm/min
b
333.3 mm/min
c
33.3 mm/min
d
76,800,000 mm/min
8
A bug crawls 240mm in 6min. How fast is this in m/hr?
a
9 m/hr
b
0.02 m/hr
c
8 m/hr
d
2.4 m/hr