Florida Science Grade 6

Section 2: Radiation from Space

Radiation from Space

1.
What form of energy is light that is emitted from stars?
A)radiation
B)convection
C)conduction
D)thermal
2.
Why can't astronauts hear each other in space without the use of a microphone?
A)because there's no such thing as sound in space
B)because sound waves can't travel in space, far from Earth
C)because sound waves can't travel through empty space
D)because outer space alters the astronaut's hearing
3.
What does it mean to talk about the frequency of electromagnetic radiation?
A)the number of times a wave moves per unit of sound
B)the number of times a wave vibrates per unit of time
C)the distance a line travels in a certain amount of time
D)the distance waves travel in a certain amount of time
4.
What is the difference between refracting and reflecting telescopes?
A)A reflecting telescope uses a convex lens to magnify an image, and a refracting telescope uses a mirror.
B)A refracting telescope uses a mirror, and a reflecting telescope uses a concave lens to magnify an image.
C)A refracting telescope uses a convex lens to magnify an image, and a reflecting telescope uses a mirror.
D)There is no difference.
5.
What was the initial problem with the Hubble Space Telescope?
A)It is a reflecting telescope, and there was a problem with the lens.
B)It is a refracting telescope, and there was a problem with the mirror.
C)It is a refracting telescope, and there was problem with the lens.
D)It is a reflecting telescope, and there was a problem with the mirror.
6.
The uses of active optics integrates a dependence on __________.
A)weather conditions
B)mirrors
C)computers
D)lenses
7.
The use of adaptive optics integrates a dependence on __________.
A)computers
B)lasers
C)mirrors
D)lenses
8.
Why are radio telescopes considered to be dependable telescopes?
A)because they use radio waves, which do not pass freely through Earth's atmosphere due to unpredictable weather
B)because they use radio waves, which pass freely through Earth's atmosphere in any weather condition
C)because they use radios to help various telescope's computers communicate with each other
D)because they never run out of energy
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe