Speed - Distance and Time to Speed - Changed Both Units (Level 3)

This topic focuses on converting and calculating speeds using given distances and times, while changing the units for speed. It covers conversions among different measurement units, such as millimeters to centimeters and hours to days or seconds. The problems involve organisms like bacteria and bugs moving over certain distances and the calculations determine their speeds in varied units like cm/day, cm/second, mm/minute, km/day, mm/hour, cm/hour, and km/minute. This advanced practice develops skills in unit conversion and formula application for speed (distance/time) calculations.

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

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

Math worksheet on 'Speed - Distance and Time to Speed - Changed Both Units (Level 3)'. Part of a broader unit on 'Speed, Distance, and Time - Advanced' Learn online: app.mobius.academy/math/units/speed_distance_time_advanced/

1

A bug crawls 2,000mm in 40min. How fast is this in cm/s?

a

0.0833 cm/s

b

480,000 cm/s

c

0.8 cm/s

d

0.3 cm/s

2

A bacteria moves 3,000mm in 60hr. How fast is this in cm/s?

a

0.001389 cm/s

b

64,800,000 cm/s

c

0.4 cm/s

d

0.8 cm/s

3

A car drives 3,000km in 60hr. How fast is this in m/s?

a

5 m/s

b

648,000,000,000 m/s

c

10 m/s

d

13.89 m/s

4

A bacteria moves 1,000mm in 50hr. How fast is this in m/d?

a

2.08 m/d

b

1 m/d

c

0.1 m/d

d

0.48 m/d

5

A bacteria moves 3,200mm in 80hr. How fast is this in m/min?

a

1 m/min

b

15,360 m/min

c

0.000667 m/min

d

0.8 m/min

6

A car drives 2,000mm in 50ms. How fast is this in cm/s?

a

40,000 cm/s

b

400 cm/s

c

10 cm/s

d

4,000 cm/s

7

A car drives 2,400km in 80hr. How fast is this in m/min?

a

50 m/min

b

500 m/min

c

11,520,000,000 m/min

d

5,000 m/min