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Sight and Eyeball
| Question | Answer |
|---|---|
| . Most objects can be seen because they _____. A) bend light waves B) reflect light waves C) absorb light waves D) transmit light waves | B |
| The transparent front surface of the eye where light first passes through is called the _____. A) cornea B) iris C) pupil D) retina | A |
| The signals generated by the nerves in the retina are carried to your brain by the _____. A) cornea B) pupil C) optic nerve D) lens | C |
| . Light is focused by the lens to the back of the eye on the _____. A) cornea B) iris C) pupil D) retina | D |
| Inside the eye, the nerves in the _____ are sensitive to different kinds and colors of light. A) retina B) pupil C) iris D) cornea | A |
| Which describes the correct path that light takes in order for to be able to see a tree? A)The tree absorbs light and then transmits it to the eye. The eye then refracts the light into the brain. B)The tree emits light that travels to the eye. Once in t | C |
| Light waves enter the eye and pass through which two transparent parts? A) Optic nerve and eyeball B) Cornea and retina C) Pupil and iris D) Cornea and lens | D |
| As light waves enter the eye, which sequence shows the path light travels to allow sight to occur? A) Cornea, lens, retina, optic nerve B) Lens, cornea, optic nerve, retina C) Cornea, retina, lens, optic nerve D) Optic nerve, retina, cornea, lens | A |
| Why must light be refracted by the lens of the eye? A)So that the light can scatter to all parts of the retina B)So that the image can be formed in the center of the eye C)So that the image focuses at the back of the eye D)So that the iris can close the | C |