forces forces 3.0 / 5 based on 2 ratings ? ScienceAll LevelsAll boards Created by: Dawn CostelloCreated on: 25-03-10 10:31 forces - speed speed is a measurement of how quickly an object moves. the faster an object moves the greater its speed. mph km/h m/s speed(m/s) =distance(m)/time(s) 1 of 2 forces- floating & sinking If an object isn't moving then the forces must be equal. if something is floating then the upthrust and the gravity must be equal. If gravity is stronger than upthrust then the object will sink. If a liquid is more dense then an object will float easily. E.G. water is less dense than oil so the upthrust is less in water. density = mass/volume If an object is more dense than the liquid it is put in it will sink. adding salt will make a liquid more dense 2 of 2
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