If we represent the Milky Way Galaxy as the size of a grapefruit (10-cm diameter), the distance to the Andromeda Galaxy would be about
A) 10 cm.
B) 3 m.
C) 30 m.
D) 1 km.
E) 100 km.
B
Physics & Space Science
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Although a magnet can change the direction of travel of an electron beam, it cannot change its
A) speed B) kinetic energy. C) both of these D) neither of these
Physics & Space Science
When observing a very distant quasar, we are actually seeing the universe the way it was when it was much younger than it is today
Indicate whether the statement is true or false
Physics & Space Science
A ball rolls along a horizontal track in a certain time. If the track has a small upward dent in it, the time to roll the length of the track will be
A) less. B) the same. C) more.
Physics & Space Science
____ is the brightest star in the constellation of Ursa Majoris
a. ? Ursa Majoris b. ? Ursa Majoris c. ? Ursa Majoris d. Wrong! Ursa Majoris is the name of the brightest star.
Physics & Space Science