Which is Faster - Changed Time Units (Level 1)

This topic focuses on comparing speeds by examining situations where two entities (such as bugs, cars, bacteria, or horses) cover different distances over different times, with the challenge of time units being different for the two entities compared. Students must determine which of the two is faster. This requires converting time units to a common unit for a fair comparison and then calculating speed by dividing distance by time to ascertain which entity moves faster. These problems are a part of an advanced study on speed, distance, and time.

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

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Speed - Which is Faster - Changed Time Units Worksheet

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Speed - Which is Faster - Changed Time Units
1
Bacteria A moves 3cm in 7d. Bacteria B moves 5cm in 192hr. Which is faster?
a
Bacteria A
b
Bacteria B
2
Bug A crawls 2hm in 7hr. Bug B crawls 4hm in 360min. Which is faster?
a
Bug A
b
Bug B
3
Horse A trots 5dam in 8min. Horse B trots 2dam in 0.12hr. Which is faster?
a
Horse A
b
Horse B
4
Bacteria A moves 4mm in 4d. Bacteria B moves 4mm in 168hr. Which is faster?
a
Bacteria A
b
Bacteria B
5
Horse A trots 4hm in 7min. Horse B trots 5hm in 0.13hr. Which is faster?
a
Horse A
b
Horse B
6
Bacteria A moves 5mm in 5hr. Bacteria B moves 5mm in 0.17d. Which is faster?
a
Bacteria A
b
Bacteria B
7
Bug A crawls 4mm in 5s. Bug B crawls 3mm in 0.12min. Which is faster?
a
Bug A
b
Bug B
8
Bacteria A moves 5dm in 7d. Bacteria B moves 5dm in 192hr. Which is faster?
a
Bacteria A
b
Bacteria B