Smashing Dynamics
Level 4, 2026-02-26
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 scooter travels at 6 kilometers/day around a rectangle with one side of 5 kilometers and another side of 8 kilometers. How long will the scooter take to get around the rectangle?
[2]
A boat is dropped into the water and falls for 4 min 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]
Planet X has gravity that is twice the gravity on Earth. If a rabbit is dropped for 10 min on Planet X, how fast will it be going?
[1]
A train travels at 3 miles/second around a rectangle with one side of 4 miles and another side of 6 miles. How long will the train take to get around the rectangle?
[2]
A rocket blasts off with an upwards acceleration (not including gravity) of 20 m/sec/sec. How fast will it be going after 9 sec?
[1]
A boat travels at 8 meters/hour while a kid travels at 8 meters/hour towards it. If they are 4 meters apart, how long will it take for them to meet?
[2]
Two rockets blast off with upwards accelerations (not including gravity) of 7 m/sec/sec and 12 m/sec/sec. How much faster will the fastest rocket be going after 2 min?
[2]
A person traveling at 21 m/hr decelerates at 4 m/hr/hr. How long will it take to stop?
[1]
A cat travels 45 inches at 9 inches per hour. How long will it take the cat to finish?
[1]
A cat travels at 9 kilometers/minute while a person travels at 5 kilometers/minute. If they race for 5 minutes, how far will cat be ahead by?
[2]
A cat travels at 8 kilometers per hour. What is its speed?
[1]
A rabbit 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]
What is 8 kilometers in centimeters?
[1]
What is 4m in ft?
[1]
A person is dropped out of a plane and falls for 2 sec until it hits the ground. How fast will it be going when it hits the ground?
[1]