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Which is Faster - Changed Time Units (Level 2)

This math topic involves comparing speeds of different objects when the time units are varied. The skills practiced involve calculating and understanding speed in non-standard units such as meters per minute, kilometers per day, and millimeters per millisecond. The exercises often require converting between different time units to assess which of two entities (e.g., bugs, horses, or spaceships) is moving faster given its distance covered within a specified time frame. This topic is part of an advanced unit on Speed, Distance, and Time.

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

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Which is Faster - Changed Time Units

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.


Bacteria A moves 20mm in 6hr. Bacteria B moves 20mm in 420min. Which is faster?

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Speed - Which is Faster - Changed Time Units Worksheet

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Math worksheet on 'Speed - Which is Faster - Changed Time Units (Level 2)'. Part of a broader unit on 'Speed, Distance, and Time - Advanced' Learn online: app.mobius.academy/math/units/speed_distance_time_advanced/
1
Bug A crawls 30mm in 5s. Bug B crawls 20mm in 0.07min. Which is faster?
a
Bug A
b
Bug B
2
Bacteria A moves 50cm in 6hr. Bacteria B moves 20cm in 480min. Which is faster?
a
Bacteria A
b
Bacteria B
3
Train A travels 40cm in 7ms. Train B travels 20cm in 0.004s. Which is faster?
a
Train A
b
Train B
4
Bacteria A moves 40mm in 4hr. Bacteria B moves 40mm in 480min. Which is faster?
a
Bacteria A
b
Bacteria B
5
Rocket A flies 40hm in 5s. Rocket B flies 40hm in 7,000ms. Which is faster?
a
Rocket A
b
Rocket B
6
Car A drives 40hm in 4min. Car B drives 50hm in 420s. Which is faster?
a
Car A
b
Car B
7
Bacteria A moves 20dm in 7hr. Bacteria B moves 30dm in 240min. Which is faster?
a
Bacteria A
b
Bacteria B