English National Curriculum Science - Previous Lessons - Science

3. Learn about contact forces

Mission Objectives

Define contact forces

Explain what causes a range of contact forces

Describe ways of changing the size of a frictional force

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Keywords

Words and meanings to learn

normal

A contact force which takes place when a surface pushes against an object which is placed upon the surface.

tension

The force created when a load is added to the end of a material in a specific direction.

applied

The application of a force by an object or a person being exerted upon another object.

spring

When an elastic object is contracted or expanded.

air resistance

Force that pushes against an object moving through the air.

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