iGCSE Physics 1.5.1 Effects of Forces CORE

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Unit 1.5.1 Effects of Forces CORE
**

Know that forces may produce changes in the size and shape of an object

Sketch, plot and interpret load–extension graphs for an elastic solid and describe the associated experimental procedures

Determine the resultant of two or more forces acting along the same straight line

Know that an object either remains at rest or continues in a straight line at constant speed unless acted on by a resultant force

State that a resultant force may change the velocity of an object by changing its direction of motion or its speed

Describe solid friction as the force between two surfaces that may impede motion and produce heating

Know that friction (drag) acts on an object moving through a liquid

Know that friction (drag) acts on an object moving through a gas (e.g. air resistance)