Test
Time, mass, speed
This test covers calculations involving time, mass, speed and related quantities. Tasks develop correct use of measurement units, application of the relationship between speed, time and distance and interpretation of practical situations.
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Sample questions
- The train from Vilnius to Riga departs at 06:33 and arrives at 10:33. The distance between the cities is 260 km. Calculate the average speed of the train if the journey is non-stop.
- Convert the time period of ___ hours and ___ minutes into minutes.
- Convert the speed of ___ km/h to m/s, rounding the result to the nearest integer.
- Convert the mass of ___ tons to ___.
- The length of the road connecting two cities is ___ meters. The maximum allowed speed for driving a car on this road is ___ km/h. Calculate the shortest time in minutes it takes to travel from one city to another by car. Round the result to the nearest integer.
Time, mass and speed
In practical problems, make measurement units compatible before calculating. Speed, time and distance are connected by s = v × t, v = s ÷ t and t = s ÷ v.
Units
With km/h, express time in hours; with m/s, use seconds. Convert mass with 1 kg = 1000 g and 1 t = 1000 kg. Always include an appropriate unit in the final answer.
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