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Mr. O Unit F 2
| Question | Answer |
|---|---|
| A transparent object with at least one curved surface is called a ______________. | lens |
| What kind of telescope uses a mirror to focus an image? | reflecting telescope |
| What kind of microscope uses two convex lenses? | compound microscope |
| The light sensitive layer at the back of the eye is called the _____________. | retina |
| Clear, thin lenses that are placed on the eye in front of the cornea are called ________. | contact lenses |
| Objects that do not let light pass through them are called _________. | opaque |
| What kind of microscope can make things appear hundreds of thousands of times bigger than they actually are? | electron microscope |
| What did Anton van Leeuwenhoek make by using only one lens? | simple microscope |
| Objects that allow the greatest amount of light to pass through them are __________. | transparent |
| What is the name given to objects that let light pass through them but cause light to scatter in many directions? | translucent |
| What kind of telescope use lenses to focus an image? | refracting telescope |
| Which type of lens brings light together at a focal point? | Convex lens |
| Whick type of lens causes parallel light rays to spread apart? | concave lens |
| Whick type of lens produces an image that is larger than the object? | convex lens |
| Which type of lens produces an image that is smaller than the object? | concave lens |