Worksheets8th gradeoptics
Total questions: 10
Worksheet time: 11mins
Which lens represents the path light takes through a diverging lens?
Which figure represents the path light takes through a converging lens?
what is A on the diagram?
center of curviture
focal length
reflected ray
focal point
This diagram shows...
specular reflection
diffuse reflection
total internal reflection
refraction
Why does the straw appear to be bent?
light is reflected
light is absorbed
light is turned
light is refracted
how much lenses does human eye have?
1
2
3
4
A clear image forms before the retina. That’s why the retina receives a blurred image. Nearsighted people see the near objects, but don’t clearly see the far objects.
myopia
Hyperopia
if the focal length of a lens is 40 cm, then the power is...
2,5D
25D
40D
0,4D
An object is 50 cm beyond a
convex lens which has a
focal length of 20 cm.
Where does the image
form? Draw the graph
List the properties of previous example
smaller
bigger
real
inverted
upright
