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________ is the force that stops boats sinking in water.
We often use the word weight when we are talking about mass and how heavy something is, but weight is affected by _______.
The force between two moving surfaces or objects is called ________.
______ was a scientist who gives his name to Newton-metre and some laws of physics, e.g. Newton's third law.
The _____ needed to be overcome to allow the object to move.
With strength - amount of force a muscle can exert against __________.
A pulley can be used to lift a heavy ______.
________ force opposes gravity.
In physics, a force is any ___________ that, when unopposed, will change the motion of an object.
A state in which opposing forces are ________.
When one force is larger than the other, the forces are __________.
The trophy is a ________ reminder of his success.
Our train was __________ for over an hour.
The overall force is the _________ force.
___________ is reached when the resultant forces balance out to zero, so the motion doesn't change (e.g. a parked car).
