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Biology
11th -
12thgrade
IB Magnification & Scale Bar Calculations - 4Hr
20 questions
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- 1. Multiple ChoiceHow many microns (µm)
= 1 mm?1,0001,000,00010,000100,000 - 2. Multiple ChoiceHow many nanometers (nm)
= 1 micron (µm)?1,000,0001,00010,000100,000 - 3. Multiple ChoiceHow many nanometers (nm)
= 1 mm?1,00010,000100,0001,000,000 - 4. Multiple ChoiceTo calculate magnification we use......image size x actual sizeimage size ÷ actual sizeactual size ÷ image size
- 5. Multiple ChoiceTo calculate image size we use.....actual size x magnificationmagnification ÷ actual sizeactual size ÷ magnification
- 6. Multiple Choice
To calculate actual size we use.....
image size ÷ magnification
image size x magnification
magnification ÷ image size
- 7. Multiple ChoiceIf the image measures 100 mm and the scale bar is is 50 µm, what is the magnification?2,000 x150 x5,000 x20 x
- 8. Multiple ChoiceIf a scale bar measures 32 mm and it states it's length is 100 µm, what is the magnification?320 x3,200 x0.32 x32,000 x
- 9. Multiple ChoiceIf a bacteria image measures 450 mm and the magnification is 15,000x, what is the actual size of the bacteria?30 µm0.3 µm300 µm3,000 µm
- 10. Multiple ChoiceAn ant measures 2 mm in length. If it is observed at 20x magnification, what length should the scale bar be drawn at?40 mm10 mm4 mm0.1 mm
- 11. Multiple Choice
Josie measured the scale bar image to be 80 mm. What is the magnification of this electron micrograph?
160X
0.00625 X
0.16X
25,000X
- 12. Multiple Choice
Serena measured the image of one of the bacterial cells to be 32 mm. If the magnification of the image is 8,000X, what is the actual size of the bacterial cell?
4 μm
0.004 μm
256,000 μm
0.25 μm
- 13. Multiple ChoiceIf each division is 100 µm, what is the size of this organism?4 µm400 µm4,000 µm400 mm
- 14. Multiple Choice
What steps should Burt use follow to calculate the actual size of each bacterial cell?
Step 1: Calculate the magnification by measuring the scale bar image ÷ actual size
Step 2: Measure image of bacterial cell ÷ magnification
Step 1: Calculate the magnification by measuring the scale bar image x actual size
Step 2: Measure image of bacterial cell ÷ magnification
Step 1: Measure the image of the bacterial cell
Step 2: Divide the image size by the scale bar size
He can't, it is impossible to calculate
- 15. Multiple ChoiceWhich part is the ocular lens?1347
- 16. Multiple ChoiceWhich part are the objective lenses?1347
- 17. Multiple ChoiceMagnification is determined by . . . .multiplying ocular and objective magnificationsadding ocular magnification and stage heightadding ocular and objective magnificationsmultiplying objective magnification and diaphragm power
- 18. Multiple ChoiceThe higher the magnification, the ________ you see of the specimen.morelesshigherlower
- 19. Multiple ChoiceThis is the term given to the area you can see under the microscope.field of viewstageocular lensobjective lens
- 20. Multiple Choice
A microscope that uses a stream of electrons to form magnified images of objects
Optical Microscope
Electron Microscope
Compound Microscope
Simple Microscope
- Answer choicesTagsAnswer choicesTags