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GCSE Combined Science · key term
The factor by which an image is larger than the actual object: .
Used by AQA and Edexcel
Specification 4.1.1.2, 4.1.1.5 · Paper 1
The number of times larger an image is than the actual object.
Revise: Cell microscopy and estimating sub-cellular sizeIn this required practical, you observe a selection of plant and animal cells, draw and label them, and include a magnification scale.
How many times larger an image is than the real object: . It has no unit.
Paper 1, Paper 2
Revise: Microscopy, Scale and Investigating CellsMagnification tells us how many times larger the image is than the specimen. Resolution is the ability to distinguish two close points as separate. Enlarging a blurred image makes the blur bigger; improving resolution reveals detail that was previously indistinguishable.
Multiply eyepiece and objective magnifications; do not add them.
Distinguish the microscope's viewing magnification from the magnification of your drawing. A hand-drawn image is not automatically the same size as the microscope image.
Use approximate language for estimates and compare structures shown at the same magnification.
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