Smashing Dynamics
Level 4, 2026-01-26
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 car is dropped into the water and falls for 10 sec until it hits the bottom. The water creates a deceleration of 7 m/sec/sec. How fast will it be going when it hits the bottom?
[1]
A ball travels at 3 feet/minute for 6 minutes then at 3 feet/minute for 7 minutes. How far did it go?
[2]
A rocket blasts off with an upwards acceleration (not including gravity) of 14 m/sec/sec. How fast will it be going after 10 min?
[1]
A kid is dropped out of a plane and falls for 10 sec until it hits water. The water creates a deceleration of 7 m/sec/sec and it takes another 19 sec to sink to the bottom. How fast will it be going when it hits the bottom?
[2]
A tiger traveling at 53 cm/hr decelerates at 9 cm/hr/hr. How long will it take to stop?
[1]
A rabbit starts at a speed of 3 m/min and increases its speed to 10 m/min in 3 min. What is its acceleration?
[1]
A dog speeds up to 2 mi/hr in 3 hr. What is its acceleration?
[1]
Two rockets blast off with upwards accelerations (not including gravity) of 8 m/sec/sec and 9 m/sec/sec. How much faster will the fastest rocket be going after 8 min?
[2]
What is 4 days in hrs?
[1]
A boat is dropped out of a plane and falls for 3 sec until it hits the ground. How fast will it be going when it hits the ground?
[1]
A bus travels at 12 meters/day while a bike travels at 11 meters/day. If they race for 2 days, how far will bus be ahead by?
[2]
What is 5 miles in kilometers?
[1]
A cat travels at 8 miles/minute for 6 minutes then at 9 miles/minute for 2 minutes. How far did it go?
[2]
Two rockets blast off with upwards accelerations (not including gravity) of 20 m/sec/sec and 10 m/sec/sec. How much faster will the fastest rocket be going after 8 min?
[2]