Microscopes and magnification (AQA GCSE Biology): Quizzes
📚Quizzes
Practise the questions
13 questions from this quiz
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Practise the questions
13 questions from this quiz
How long ago were light microscopes invented?
How long ago were light microscopes invented?
350 years ago
What is the maximum magnification of the best light microscopes?
What is the maximum magnification of the best light microscopes?
x2000
What do electron microscopes use to create images?
What do electron microscopes use to create images?
Electrons
What is the maximum magnification of electron microscopes?
What is the maximum magnification of electron microscopes?
x2 million
What is resolving power?
What is resolving power?
Distinguishing between two close objects
What units are used to measure resolution?
What units are used to measure resolution?
Nanometers (nm)
What is the resolution of a light microscope?
What is the resolution of a light microscope?
200 nm
Which type of electron microscope has the best resolution?
Which type of electron microscope has the best resolution?
Transmission (0.1 nm)
What does a smaller resolution number indicate?
What does a smaller resolution number indicate?
Better resolution
How many micrometers (μm) are in 1 millimeter (mm)?
How many micrometers (μm) are in 1 millimeter (mm)?
1000 μm
If image size is 200 μm at x400 magnification, what is the real size?
If image size is 200 μm at x400 magnification, what is the real size?
0.5 μm
A scale bar shows 1 μm but measures 20 mm. What is the magnification?
A scale bar shows 1 μm but measures 20 mm. What is the magnification?
x20000
What is the purpose of scale bars on microscope images?
What is the purpose of scale bars on microscope images?
Show real sizes in the image