Georgia Science Grade 6

Chapter 22: Exploring Space

CRCT Practice

1
Who was the first human in space?
A)Edwin Aldrin
B)John Glenn
C)Neil Armstrong
D)Yuri Gagarin
2
Which is the speed of light in a vacuum?
A)300 km/s
B)300,000 km/s
C)3,000 km/s
D)30,00 km/s
3
Which type of telescope is shown?
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A)refracting
B)radio
C)reflecting
D)space
4
What is the name of the curved path that the satellite follows?
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078778441/516730/ck.jpg','popWin', 'width=353,height=216,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (29.0K)</a>
A)an orbit
B)a rotation
C)a revolution
D)a track
5
Which force pulls the satellite toward Earth?
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078778441/516730/ck.jpg','popWin', 'width=353,height=216,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (29.0K)</a>
A)the Moon's gravity
B)Earth's gravity
C)the Sun's gravity
D)Earth's magnetic field
6
Which type of radiation has a shorter wavelength than visible light does?
A)ultraviolet
B)microwaves
C)infrared
D)radio waves
7
Which space probe visited Mars?
A)Viking 1
B)Mariner 2
C)Magellan
D)Pioneer 10
8
Which United States space program included several lunar landings?
A)Gemini
B)Mercury
C)Apollo
D)space shuttle
9
Which proportion of sol value corresponds to the warmest temperatures at all three heights?
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078778441/516730/cl.jpg','popWin', 'width=316,height=325,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (52.0K)</a>
A)3.23
B)3.7
C)3.07
D)3.6
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