Required practical - Force and extension (AQA GCSE Physics): Flashcards

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Required practical - Force and extension
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Extension formula for spring

Extension=new lengthoriginal length\text{Extension} = \text{new length} - \text{original length}

Unit for weight

Newtons (N)

Unit for mass

Grams (g) or kilograms (kg)

Mass that creates 1N weight force

100g

Formula: weight in terms of mass

weight=mass×10\text{weight} = \text{mass} \times 10

X-axis on force-extension graph

Force (N)

Y-axis on force-extension graph

Extension (cm or m)

Expected shape of force-extension graph

Straight line through origin

Type of relationship: force & extension

Linear relationship

Extension is ___ to applied force

Directly proportional

How to avoid parallax error

Read ruler at eye level

Essential safety equipment for springs

Eye protection (safety glasses)

Why eye protection needed with springs

Springs store elastic energy and can snap

Limit of proportionality

Point where spring stops following linear pattern

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