Interacting forces (AQA GCSE Physics Combined Science): Flashcards
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14 cards from this deck
What does a force create on an object?
What does a force create on an object?
A push or pull
Do forces act alone or in pairs?
Do forces act alone or in pairs?
In pairs (interaction pairs)
3 types of non-contact forces
3 types of non-contact forces
Gravitational, magnetic, electrostatic
What does gravitational force act between?
What does gravitational force act between?
All objects that have mass
Does gravity attract or repel?
Does gravity attract or repel?
Always attracts, never repels
What does magnetic force act between?
What does magnetic force act between?
Magnetic materials and magnets
Magnetic poles: like poles attract or repel?
Magnetic poles: like poles attract or repel?
Repel. Unlike poles attract
What does electrostatic force act between?
What does electrostatic force act between?
Objects with electric charge
Electric charges: unlike charges attract or repel?
Electric charges: unlike charges attract or repel?
Attract. Like charges repel
When do contact forces work?
When do contact forces work?
Only when objects are touching each other
What is the normal contact force?
What is the normal contact force?
Upward push from a surface on an object in contact with it
Direction normal force acts
Direction normal force acts
At right angles (perpendicular) to the surface
What does friction always do?
What does friction always do?
Opposes motion or attempted motion
What is tension?
What is tension?
Pulling force in ropes, strings, or cables