Forces & elasticity (Edexcel GCSE Physics Combined Science): Flashcards
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Practise the cards
15 cards from this deck
Forces needed to change object shape (not just move it)
Forces needed to change object shape (not just move it)
More than one force
Direction of forces needed to stretch an object
Direction of forces needed to stretch an object
Opposite directions
Role of fixed point when stretching object
Role of fixed point when stretching object
Provides counteracting force
Deformation definition
Deformation definition
Change in shape of object due to forces
Elastic deformation characteristic
Elastic deformation characteristic
Returns to original shape after force removed
Plastic deformation characteristic
Plastic deformation characteristic
Does not return to original shape (permanent change)
What happens when force stretches/compresses/bends object
What happens when force stretches/compresses/bends object
Energy is transferred
Elastically distorted means
Elastically distorted means
Returns to original shape & length after force removed
Elastic limit definition
Elastic limit definition
Point beyond which object won't return to original shape
Where energy goes when work done stretching/compressing
Where energy goes when work done stretching/compressing
Elastic potential energy store
Energy transfer if object elastically distorted
Energy transfer if object elastically distorted
All energy transferred to elastic potential energy store
Hooke's Law
Hooke's Law
Extension is directly proportional to force applied
Effect on extension if force is doubled
Effect on extension if force is doubled
Extension doubles
Limit of proportionality
Limit of proportionality
Limit where extension remains proportional to force
What happens beyond elastic limit
What happens beyond elastic limit
Cannot return to original shape, permanently stretched