Contact & Non-Contact Forces (Edexcel GCSE Physics): Flashcards
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12 cards from this deck
Definition of a force
Definition of a force
A push or pull on an object due to interaction with another
Properties all forces have
Properties all forces have
Magnitude and direction (vector quantity)
Unit of measurement for force
Unit of measurement for force
Newtons
Definition of contact forces
Definition of contact forces
Forces where two objects are physically touching
Examples of contact forces
Examples of contact forces
Tension, friction, air resistance
Direction of air resistance on a falling skydiver
Direction of air resistance on a falling skydiver
Upwards
Definition of non-contact forces
Definition of non-contact forces
Forces where two objects are physically separated
Examples of non-contact forces
Examples of non-contact forces
Gravitational, electrostatic, magnetic
Electrostatic force between opposite charges
Electrostatic force between opposite charges
Attraction
Electrostatic force between same charges
Electrostatic force between same charges
Repulsion
Direction of normal contact force relative to contact
Direction of normal contact force relative to contact
Opposite direction, normal to planes of contact
Cause of friction
Cause of friction
Surfaces and their roughness when moved in contact