Smashing Dynamics
Level 4, 2026-11-04
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 cube traveling at 2 mi/sec decelerates at 3 mi/sec/sec. How long will it take to stop?
[1]
A scooter accelerates at 2 m/min/min for 8 min. How fast is it going?
[1]
A rocket blasts off with an upwards acceleration (not including gravity) of 10 m/sec/sec. How fast will it be going after 7 sec?
[1]
A cheetah travels at 6 kilometers/second around a square with a side of 8 kilometers. How long will the cheetah take to get around the square?
[2]
A ball traveling at 51 ft/sec decelerates at 7 ft/sec/sec. How long will it take to stop?
[1]
A person traveling at 2 mi/sec stops in 5 sec. What is its acceleration?
[1]
What is 5 days in hrs?
[1]
A rabbit is dropped into the water and falls for 7 sec until it hits the bottom. The water creates a deceleration of 8 m/sec/sec. How fast will it be going when it hits the bottom?
[1]
A rabbit traveling at 9 in/hr stops in 8 hr. What is its acceleration?
[1]
A boat travels at 3 kilometers/hour for 6 hours then at 3 kilometers/hour for 3 hours. How far did it go?
[2]
A rocket blasts off with an upwards acceleration (not including gravity) of 10 m/sec/sec. How fast will it be going after 8 sec?
[1]
Planet X has gravity that is one third the gravity on Earth. If a train is dropped for 2 sec on Planet X, how fast will it be going?
[1]
A rabbit travels at 12 kilometers/hour while a kid travels at 6 kilometers/hour. If they race for 6 hours, how far will rabbit be ahead by?
[2]
A rocket blasts off with an upwards acceleration (not including gravity) of 15 m/sec/sec. How fast will it be going after 8 min?
[1]
Two rockets blast off with upwards accelerations (not including gravity) of 7 m/sec/sec and 16 m/sec/sec. How much faster will the fastest rocket be going after 5 sec?
[2]
A person starts at a speed of 7 in/min and increases its speed to 8 in/min in 7 min. What is its acceleration?
[1]