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

This topic focuses on advanced problems related to calculating distances using given speeds and times, while incorporating unit conversions. The exercises simulate scenarios involving different creatures and vehicles, such as horses, bugs, spaceships, bacteria, and cars, moving at specified speeds over certain durations. The primary challenge involves converting units of speed (like cm/s, mm/min, m/ms, cm/d, and m/s) to distance units (meters, kilometers, or millimeters), requiring multiplicative adjustments and attention to dimensional analysis. This set of problems helps strengthen skills in applying formulas and understanding unit conversions within a speed, distance, and time context.

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

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

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Speed - Speed and Time to Distance - Changed Distance Units
1
A horse trots at 30cm/s for 50s. How many mm does it travel?
a
0.2 mm
b
15,000 mm
c
150,000 mm
d
4,500,000 mm
2
A bug crawls at 20cm/min for 80min. How many m does it travel?
a
9 m
b
400 m
c
3.2 m
d
16 m
3
A bacteria moves at 20cm/d for 60d. How many m does it travel?
a
2.4 m
b
5 m
c
12 m
d
300 m
4
A horse trots at 30m/min for 70min. How many cm does it travel?
a
2,100 cm
b
630,000,000 cm
c
210,000 cm
d
0 cm
5
A bacteria moves at 30cm/hr for 70hr. How many m does it travel?
a
19 m
b
21 m
c
233.333 m
d
6.3 m
6
A horse trots at 20cm/s for 50s. How many mm does it travel?
a
0.3 mm
b
10,000 mm
c
2,000,000 mm
d
100 mm
7
A bacteria moves at 30mm/hr for 50hr. How many cm does it travel?
a
150 cm
b
15 cm
c
16.67 cm
d
450 cm
8
A bacteria moves at 20mm/hr for 80hr. How many m does it travel?
a
4,000 m
b
10 m
c
1.6 m
d
0.032 m