Smashing Dynamics
Level 4, 2026-03-01
All answers must have a value and units
Metric Distance
cmcentimeterbasic unit of distance
mmeter100 centimeters
kmkilometer1000 meters
Imperial Distance
ininch2.5 centimeters
ftfoot12 inches
mimile5280 feet, 1.6 kilometers
Time
secsecondbasic unit of time
minminute60 seconds
hrhour60 minutes
dayday24 hours
Other
ggravity-10 m/sec/sec
A cat speeds up to 6 ft/min in 4 min. What is its acceleration?
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A dog accelerates at 7 km/sec/sec for 2 sec. How fast is it going?
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A dog accelerates at 6 ft/min/min for 6 min. How fast is it going?
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A person is dropped out of a plane and falls unitil it hits the ground. If its speed is 96 m/sec when it hits the ground, how long did the fall take?
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What is 5mi in km?
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A train speeds up to 3 mi/hr in 4 hr. What is its acceleration?
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A door is closing in 2 seconds. How fast do you need to travel to get through the door if you are 12 feet away?
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A scooter traveling at 3 cm/sec stops in 6 sec. What is its acceleration?
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A train is dropped out of a plane and falls unitil it hits the ground. If its speed is 158 m/sec when it hits the ground, how long did the fall take?
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A kid travels at 7 centimeters/minute around a rectangle with one side of 5 centimeters and another side of 6 centimeters. How long will the kid take to get around the rectangle?
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Planet X has gravity that is three times the gravity on Earth. If a rabbit is dropped for 6 min on Planet X, how fast will it be going?
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What is 15day in min?
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A cube speeds up to 4 mi/sec in 5 sec. What is its acceleration?
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What is 2day in hr?
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A train traveling at 4 km/min stops in 5 min. What is its acceleration?
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A cheetah speeds up to 9 mi/sec in 9 sec. What is its acceleration?
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A cat starts at a speed of 7 m/min and increases its speed to 16 m/min in 8 min. What is its acceleration?
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A cube is dropped out of a plane and falls unitil it hits the ground. If its speed is 139 m/sec when it hits the ground, how long did the fall take?
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A bus travels at 8 meters per second. What is its speed?
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