Smashing Dynamics
Level 4, 2026-03-23
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 car travels at 7 meters/hour while a rabbit is 8 meters behind traveling at 9 meters/hour. How long will the rabbit take to catch up to the car?
[2]
A cube travels at 11 feet/second while a scooter travels at 4 feet/second. If they race for 4 seconds, how far will cube be ahead by?
[2]
A rocket blasts off with an upwards acceleration (not including gravity) of 14 m/sec/sec. How fast will it be going after 5 sec?
[1]
A boat speeds up to 3 m/day in 2 day. What is its acceleration?
[1]
Two rockets blast off with upwards accelerations (not including gravity) of 19 m/sec/sec and 11 m/sec/sec. How much faster will the fastest rocket be going after 7 min?
[2]
Two rockets blast off with upwards accelerations (not including gravity) of 15 m/sec/sec and 7 m/sec/sec. How much faster will the fastest rocket be going after 8 sec?
[2]
A cat accelerates at 7 m/hr/hr. How long will it take to get to a speed of 13 m/hr?
[1]
A bus traveling at 27 cm/sec decelerates at 3 cm/sec/sec. How long will it take to stop?
[1]
A tiger travels at 5 inches per minute for 14 minutes. How far will the tiger travel?
[1]
A dog speeds up to 5 mi/sec in 5 sec. What is its acceleration?
[1]
A tiger is dropped out of a plane and falls unitil it hits the ground. If its speed is 68 m/sec when it hits the ground, how long did the fall take?
[1]
A cheetah travels 100 kilometers in 5 seconds. At what speed did the cheetah travel?
[1]
A rocket blasts off with an upwards acceleration (not including gravity) of 14 m/sec/sec. How fast will it be going after 5 sec?
[1]
A kid is dropped out of a plane and falls for 4 sec until it hits the ground. How fast will it be going when it hits the ground?
[1]
A car is dropped out of a plane and falls for 4 sec until it hits the ground. How fast will it be going when it hits the ground?
[1]
A train 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?
[1]