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Ch.2ScienceTest

Question	Answer
The ____ of the camera focuses ______ to form a real, upside-down image on the film in the ____ of the camera	lens light back
telescope	An optical instrument that forms inlarged images of distant objects.
_________use combinations of lenses or ____ to collect and focus _______ from distant objects.	Telescopes mirrors light
refracting telescope	A telescope that uses two convex lenses to form images.
objective	A lens that gathers light from an object and forms a real image.
eyepiece	A lens that magnifies the image formed by the objective.
reflecting telescope	A telescope that uses a concave mirror to gather light from distant objects.
microscope	An optical instrument that forms enlarged images of small, nearby objects.
A microscope uses a _________ of lenses to form a ______ image of ________ objects	combination enlarged tiny
electron microscope	A microscope that uses a beam of electrons to produce a magnified image.
Visible light is a tiny part of the whole electromagnetic spectrum, which also includes ________.	radio waves, microwaves, infrared rays, ultraviolent rays, x-rays, and gamma rays
How are lenses used in amicroscope?	The objective lens magnifies the object and the eyepiece magnifies the image.
Suppose ripples move from one side of the lake to the other. Does the water moc=ve across the lake? Explain.	The water just moves up and down from its rest position so it doesn't move across the lake with the wave.
How do you know that electromagnetic waves can travel without a vacuum?	You know because we can see the light form the sun and stars through the vacuum of space.

Created by: masterawesomeness

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