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sciencech13
| Question | Answer |
|---|---|
| Light is refracted and spread out by a _________. | concave lens |
| Which of the following uses a lens and two mirrors? | reflecting telescope |
| A flashlight uses a ________ mirror to create a beam of light. | Concave |
| Light rays refracted by a concave lens __________. | spread out |
| Which of these have an objective lens? | Microscope |
| Reflecting telescopes use two _________ to create a real image, which is then magnified by a convex lens. | Mirror |
| A microscope uses ______ to magnify small nearby objects. | two convex lenses |
| Which of these are always true about a real image? | it can be projected onto a screen. |
| Plan mirrors reflect light to form _____ images. | virtual images |
| A camera lens focuses an image on the _______. | Film |
| A ____ lens has a short focal length, produces a small image, and includes much of its surroundings. | wide angle lens |
| The image formed by a plan mirror is _______. | upright and reversed |
| _____ are thick in the middle and thin at the edges. | convex lenses |
| A far-sighted eye focuses an image _______. | behind the retina |
| Electrical power for the Hubble space telescope is provided by ________. | solar panels |
| A ____ gathers light through a lens and projects an image on film | Camera |
| Musicals in the eye can change the shape of the ______ | Lens |
| Nearsightedness can be corrected with a _____ lens | Concave lens |
| When light passes through a lens it is _____ | Refracted |
| A ____ image can not be projected on a screen | Virtual |
| The image produced by a _____ mirror is upright and smaller than the actual object | convex mirror |
| Convex lenses _____ light rays | Diverge |
| ____ mirrors can be used to magnify objects or create beams of light | Concave mirrors |
| A simple _____ telescope uses two convex lenses to gather and focus light | Refracting |
| The drawing of a human eye at the right illustrates a common vision problem | Near sightedness |