Unit 4 Test: Light and Telescopes

Who invented the telescope?

• Galileo

• Unknown

• Ptolemy

• Plato

The "light-gathering part" of the telescope is called the _____

• Eyepiece

• Ocular

• Objective

• Refiner

If the objective is made 2x wider, how much more light is collected?

• 4x as much

• 2x as much

• 10x as much

• 5x as much

What type(s) of objective(s) can be found in optical telescopes?

• Diffusers and Condensers

• Refiners & Ocula

• Mirrors & Lenses

What type of telescope collects visible light?

• Optical

• Radio

• Infrared

• Ultraviolet

When light passes through a lens, it _____

• Bounces

• Changes direction

• Absorbs

Tags

NGSS.MS-PS4-2

The ability to separate two objects that are very close together, is called _____

• Resolution

• Magnification

• Diffusion

What type of detector is used for radio waves?

• Metal Dish

• Reflecting Mirror

• Refracting Lens

What detectors are more sensitive than film, can see broader wavelengths than the human eye, and can take long exposures?

• PPE

• CCD

• PDA

The power of a telescope to enlarge distant images is called ______.

• Adaptive Optics

• Magnification

• Resolution

• Seeing