Contact & Non-Contact Forces (AQA GCSE Physics): Flashcards
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13 cards from this deck
Definition of a force
Definition of a force
A push or pull acting on an object due to interaction with another object
Properties of a force
Properties of a force
Has 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 skydiver
Direction of air resistance on a skydiver
Upwards
Requirement for normal contact force
Requirement for normal contact force
Two objects must be in direct contact
Normal contact force example: lamp on table
Normal contact force example: lamp on table
Table exerts upward force on lamp
Definition of non-contact forces
Definition of non-contact forces
Forces where two objects are physically separated
Gravitational force
Gravitational force
Attracts all objects to other objects
Electrostatic force between opposite charges
Electrostatic force between opposite charges
Force of attraction
Electrostatic force between same charges
Electrostatic force between same charges
Force of repulsion
Cause of friction
Cause of friction
Surfaces and their roughness when moved in contact