CAIE IGCSE Physics Resultant Force Changing Velocity

Practise predicting how a non-zero resultant force changes speed or direction, using force diagrams and motion contexts to distinguish acceleration from steady travel.

Exam points

subtract opposing forces to identify the resultant direction and whether speed increases or decreases
state that a resultant force can accelerate, decelerate, stop or change an object's direction
infer acceleration direction from an unbalanced force diagram even when the current velocity is unstated

[Maximum number: 2]

A resultant force is applied to an object moving with a velocity v in a straight line.

State two different changes to the motion that the resultant force may cause.

1
2

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1.5.1.5—A resultant force may change the question 1