Magnification Calculate true size image size and magnification

  • Slides: 19
Download presentation
Magnification • Calculate true size, image size, and magnification • Make unit conversions

Magnification • Calculate true size, image size, and magnification • Make unit conversions

Units Unit How many millimeters Millimeter (mm) 1 mm Micrometer (μm) 0. 001 mm

Units Unit How many millimeters Millimeter (mm) 1 mm Micrometer (μm) 0. 001 mm Nanometer (nm) 0. 000001 mm

Conversions mm into μm (x 1000) μm into nm (x 1000) 32. 5 mm

Conversions mm into μm (x 1000) μm into nm (x 1000) 32. 5 mm is how many μm? 32 500

Calculations… Write the equations for each Size of image (I) True size (T) Magnification

Calculations… Write the equations for each Size of image (I) True size (T) Magnification (M)

Figure 5. 1 Paramecium caudatum Find the true size (T) x 600

Figure 5. 1 Paramecium caudatum Find the true size (T) x 600

Figure 5. 1 Paramecium caudatum Measured length = 142 mm x 600

Figure 5. 1 Paramecium caudatum Measured length = 142 mm x 600

Figure 5. 2 x 9000 chloroplasts

Figure 5. 2 x 9000 chloroplasts

Figure 5. 2 chloroplasts Mean measured length of the four largest chloroplasts = 39.

Figure 5. 2 chloroplasts Mean measured length of the four largest chloroplasts = 39. 25 mm x 9000

Figure 5. 3 a bacterium (actual size = 0. 002 mm) Calculate the magnification

Figure 5. 3 a bacterium (actual size = 0. 002 mm) Calculate the magnification (M) Measured length = 128 mm

Figure 5. 4 seven week human embryo

Figure 5. 4 seven week human embryo

Figure 5. 4 seven week human embryo If you have a scale bar… Measure

Figure 5. 4 seven week human embryo If you have a scale bar… Measure the actual length of the scale bar (25 mm) and divide by the length it represents Magnification = 25 ÷ 10 = x 2. 5

Figure 5. 5 head of a fruit fly

Figure 5. 5 head of a fruit fly

Figure 5. 5 head of a fruit fly A length of the scale bar

Figure 5. 5 head of a fruit fly A length of the scale bar - 12. 5 mm

Figure 5. 6 pollen grain

Figure 5. 6 pollen grain

Figure 5. 6 pollen grain (a) A length of the scale bar – 25

Figure 5. 6 pollen grain (a) A length of the scale bar – 25 mm Magnification = (b) Image size = 47 mm. What is the true size?

Figure 5. 7 red blood cells in an arteriole

Figure 5. 7 red blood cells in an arteriole

Figure 5. 7 red blood cells in an arteriole Measured length of scale bar

Figure 5. 7 red blood cells in an arteriole Measured length of scale bar = 30 mm Magnification = Image size (diameter of RBC) = 25 mm Actual diameter =

Figure 5. 8 a mitochondrion

Figure 5. 8 a mitochondrion

Figure 5. 8 a mitochondrion Measured length of scale bar = 30 mm Magnification

Figure 5. 8 a mitochondrion Measured length of scale bar = 30 mm Magnification = Measured width = 34 mm Actual width =