Microscopes and magnification
7th grade (Year 8 in England) · 16 questions · Common Core: NGSS.MS-LS1-1 · England: KS3 Biology: Cells and organisation, KS4 Combined Science: Cell biology
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Question 1
A cell is 0.05 mm wide. It is viewed at ×100. How wide is the image, in mm?
Answermm
Question 2
A microscope has a ×5 eyepiece lens and a ×10 objective lens. What is the total magnification?
Answer
Question 3
An image of a cell is 25 mm wide at ×1000. What is the real width of the cell, in micrometres (µm)? (1 mm = 1000 µm)
Answerµm
Question 4
A cell is 0.01 mm wide. It is viewed at ×500. How wide is the image, in mm?
Answermm
Question 5
A microscope has a ×5 eyepiece lens and a ×4 objective lens. What is the total magnification?
Answer
Question 6
An image of a cell is 8 mm wide at ×1000. What is the real width of the cell, in micrometres (µm)? (1 mm = 1000 µm)
Answerµm
Question 7
A cell is 0.05 mm wide. It is viewed at ×40. How wide is the image, in mm?
Answermm
Question 8
A microscope has a ×10 eyepiece lens and a ×4 objective lens. What is the total magnification?
Answer
Question 9
An image of a cell is 25 mm wide at ×500. What is the real width of the cell, in micrometres (µm)? (1 mm = 1000 µm)
Answerµm
Question 10
A cell is 0.02 mm wide. It is viewed at ×500. How wide is the image, in mm?
Answermm
Question 11
A microscope has a ×15 eyepiece lens and a ×10 objective lens. What is the total magnification?
Answer
Question 12
An image of a cell is 10 mm wide at ×1000. What is the real width of the cell, in micrometres (µm)? (1 mm = 1000 µm)
Answerµm
Question 13
A cell is 0.01 mm wide. It is viewed at ×200. How wide is the image, in mm?
Answermm
Question 14
A microscope has a ×10 eyepiece lens and a ×10 objective lens. What is the total magnification?
Answer
Question 15
An image of a cell is 2.5 mm wide at ×100. What is the real width of the cell, in micrometres (µm)? (1 mm = 1000 µm)
Answerµm
Question 16
A cell is 0.05 mm wide. It is viewed at ×40. How wide is the image, in mm?
Answermm
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