Interacting forces (AQA GCSE Physics): Flashcards
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Practise the cards
13 cards from this deck
What is a force?
What is a force?
A push or a pull that acts on an object
Two ways forces can interact between objects
Two ways forces can interact between objects
At a distance or by direct contact
How do force pairs act?
How do force pairs act?
Always in opposite directions
Three main types of non-contact forces
Three main types of non-contact forces
Gravitational, magnetic, and electrostatic
Nature of gravitational force
Nature of gravitational force
Always attractive (pulls objects towards each other)
Magnetic force between opposite poles
Magnetic force between opposite poles
Attractive
Magnetic force between like poles
Magnetic force between like poles
Repulsive (push away from each other)
Electrostatic force characteristics
Electrostatic force characteristics
Can be attractive or repulsive depending on charges
Behaviour of opposite electric charges
Behaviour of opposite electric charges
Attract each other
When do contact forces work?
When do contact forces work?
Only when objects are actually touching each other
Role of normal contact force
Role of normal contact force
Balances weight and prevents objects falling through surfaces
Direction friction opposes
Direction friction opposes
Always opposes movement
Examples of other contact forces
Examples of other contact forces
Air resistance, tension, and drag