CLASS 7 · LEARNING KNOWLEDGE
Uniform motion – basic principles
How it works
In uniform motion, an object covers equal distances in equal intervals of time. The speed remains constant. The speed v is calculated as the distance covered s divided by the time t required for it: v = s / t. The unit of speed is metre per second (m/s). Typical examples are cars driving at constant speed, or trains on a straight track without acceleration.
Note
In uniform motion, the speed remains constant; it is calculated with v = s / t, where s is the distance in metres and t is the time in seconds.
In uniform motion, the speed remains constant; it is calculated with v = s / t, where s is the distance in metres and t is the time in seconds.
An example
A bicycle travels 600 metres in 120 seconds at a constant speed. How great is the speed?
v = s / t = 600 m / 120 s = 5 m/s. The speed is 5 m/s.
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50 Exercises
To the learning unit →Own explanation and own practice exercises by AmyMath. Subject reference framework: Physics. The topic assignment may vary by federal state.