WorksheetsCBA #4 E&SS
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
Gravity is a force, and it weakens with _____
a)
distance
b)
time
c)
velocity
d)
acceleration
2.
The overall effect of the tidal force is to _____
a)
compress an object
b)
stretch an object
c)
apply a shear force to an object
d)
rotate an object
3.
Where the tidal force is strongest, we say it's _____
a)
low tide
b)
high tide
4.
Where the tidal force is weakest, we say it's _____
a)
low tide
b)
high tide
5.
In general, the ocean tide causes the sea level to rise and fall by
a)
one or two centimeters
b)
ten or twenty centimeters
c)
one or two meters
d)
ten or twenty meters
6.
If the stars in our galaxy were ranked in order, increasing in size, our Sun would be _____
a)
well below the midpoint
b)
around the midpoint
c)
slightly above the midpoint
d)
in the top 10%
7.
How many Earths could fit inside the Sun?
a)
about 13 thousand
b)
about 130 thousand
c)
about 1.3 million
d)
about 13 million
8.
In the Sun's core, hydrogen atoms fuse together to form the heavier element _____
a)
sodium
b)
helium
c)
iron
d)
uranium
9.
What is the temperature of the Sun's core?
a)
15 thousand degrees Celsius
b)
150 thousand degrees Celsius
c)
1.5 million degrees Celsius
d)
15 million degrees Celsius
10.
What name is given to the stream of subatomic particles moving away from the Sun?
a)
solar wind
b)
aurora borealis
c)
cosmic dust
d)
stellar gust
11.
The Sun is made of "a gaseous soup of charged particles", called _____
a)
a plasma
b)
ionizing radiation
c)
aurora
12.
What is the term for a dark region on the surface of the Sun?
a)
a solar vortex
b)
a field flux
c)
a sunspot
d)
a stellar speck
13.
What is the brightest star in the night sky?
a)
Vega
b)
Sirius
c)
Betelgeuse
d)
Arcturus
14.
Which prominent constellation was seen as a hunter with arms raised?
a)
Delphinus
b)
Pisces
c)
Leo
d)
Orion
15.
Which pattern of stars makes up the haunches and tail of Ursa Major, the Big Bear?
a)
The Big Dipper
b)
The Little Dipper
c)
Ursa Minor
d)
Pisces
16.
Observatories tend to be built in remote areas, in order to avoid _____
a)
light pollution
b)
noise pollution
c)
air pollution
d)
thermal pollution
17.
How can you easily identify the planets among the stars in the night sky?
a)
they are coloured
b)
they appear much larger
c)
they are much brighter
d)
they don’t twinkle
18.
This instrument can be thought of as a large light bucket
a)
your eyes
b)
a lens
c)
a telescope
d)
a satellite dish
19.
The ability to separate two objects that are very close together, is called the _____
a)
orientation
b)
attitude
c)
magnification
d)
resolution
20.
Who was the first to develop reflecting telescopes?
a)
Nicolaus Copernicus
b)
Isaac Newton
c)
Galileo Galilei
d)
Tycho Brahe
100 %
