Rate Conversions

A pond filtering pump processes 250 gallons/hour, but in Japan the size pump needed is determined by Liters/sec:  What is the equivalence in SI? (1 quart = 0.9494 liters; 4 quarts = 1 gallon)

• 2631.0
• .2631
• 26.310
• .0183

If the average horse-drawn carriage can cover .300 mi per min, how fast could this horse pull the carriage in meters per second? (1 mile = 1.609 km; 1000 m = 1 km)

• 8.05 
• .8050
• .80.5
• 3.106

If the world record for one lap around the race track is 40.0 miles per 0.5 hours but the record needs to be recorded internationally to SI units of meters per second, what amount is it equivalent to?

• .03578
• 3578.0
• 35.78
• 3.578

A zubu electronic gerbil toy is programmed to actuate 5 ft per .5 min, but this toy is exported to several other countries and needs the tech manual to be rated in SI units... what is the equivalent constant acceleration rate in meters per second? (1 inch = 2.54 cm; 100 cm = 1 m; 12 in = 1 foot)

• 50.83
• 5083
• .05083
• .0127

Tags

NGSS.HS-PS2-1

Sound travels at 5.4 x10³ cm/s through Rubber. How many milliseconds will it take sound to travel across a rubber block 3 meters across? 

• 0.056 ms
• 56 ms
• .32 ms
• 1.4 ms

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Lead has a density of 11.34 kg/L. What is the mass of a rectangular block of Lead 2.5 cm x 5.0 cm x 10.0 cm? (1 cm³ = 1 mL)

• 0.98 g
• 27 g
• 41 g
• 1400 g

An automobile engine has a displacement of 305 cubic inches. What is its displacement in liters? (1 inch = 2.54 cm; 1 cm³ = 1 mL; 1000 mL = 1 L)

• 0.2 L
• 4 L
• 5 L
• 0.12 L