# forces and their effect

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• Created by: ikayleigh
• Created on: 05-06-16 14:43
• forces and their effects
• measuring
• measured in Newtons (N)
• stronger the force greater value of Newtons
• there is a linear relationship between the size of the force and the resulting stretch
• balanced and unbalanced
• when forces are balanced an object will continue at the same speed.
• pivots and moments
• pivot is used to turn things
• moment is the turning effect of a force, unit is Nm
• moment= force x distance from the pivot
• work and energy change
• work is only done if the object changes speed or shape
• work is measure in Newton metres (Nm(, or Joules (J)
• not movement of and object would be no work
• work is done if a force has acted on an object and there has been a change in that object
• forces and motion
• an object will move in the direction force has been applied
• to change an objects speed a force has to be applied
• for an object to speed up more force has to be applied in the direction of movement
• for an object to slow down the force has to be in the opposite direction to the direction of movement
• speed, distance and time
• speed= distance/time