WorksheetsUnit 4 Astrophysics
Total questions: 45
Worksheet time: 36mins
What holds planets in their orbits around the sun?
an invisible string
gravity
principle of relativity
pressure
Terrestrial planets are:
the inner planets in our solar system
composed of gas
the outer planets of our solar system
composed of rock
Which are the Jovian planets?
Mercury, Jupiter, Uranus, Saturn
Neptune, Mars, Mercury, Venus, Earth
Mercury, Venus, Earth, Mars
Neptune, Uranus, Saturn, Jupiter
Jupiter, Venus, Mars, Saturn
The luminous celestial body (a bright space object) which Earth and other planets revolve and from which they receive radiation and thermal energy.
Planet
Galaxy
Sun
Moon
A small object that enters Earth's atmosphere from space and burns due to friction, emitting light.
Meteor
Asteroid
Comet
Star
What is this group of planets called?
Inner planets
Rocky planets
Jovian planets
Terrestrial planets
How long ago did the Big Bang occur?
13,700,000,000 years ago
1,370,000,000 years ago
1,370,000 years ago
13.7 million years ago
Redshift of light means the star is moving
away from Earth
towards Earth
it's not moving
it's expanding
Redshift is proof that the universe is
contracting
expanding
creating new stars
not moving
Galaxies that are Blueshifted are
really far away
moving away from us
actually blue
moving towards us
Most scientists believe the Big Bang Theory explains which of the following questions?
How our planets and moons formed
How our universe began
How the sun turns hydrogen into helium
How fast light travels through space
What is scientific notation?
A long way to write really short numbers
A short way to write really long numbers
Something Ms. M made up
None of the above
In scientific notation, if the exponent is a positive number...
you will get a number larger than one (1)
you will get a number smaller than one (1)
In scientific notation, if the exponent is a negative number...
you will get a number larger than one (1)
you will get a number smaller than one (1)
Convert 50,000 to scientific notation.
50 x 105
5 x 103
5 x 104
.5 x 103
Convert 0.00000707 to scientific notation.
7.07 x 10-6
7.07 x 106
707 x 108
707 x 10-8
Convert 8.317 x 106 to regular notation.
0.000008317
0.008317
8,317,000
8,317,000,000
Convert 0.037 to scientific notation.
3.7 x 10-2
37 x 10-3
3.7 x 102
37 x 103
Convert 9.02 x 10-2 to regular notation.
0.902
902
0.0902
90.2
What are planets outside our solar system officially called?
Exoworlds
Ecoplanets
Exoplanets
Alien Worlds
What is a difference between spring and neap tides?
Spring tides occur when the earth and sun are IN LINE with the new or full moon.
Spring tides occur when moon in 3rd or 1st quarter phases
Spring tides are LOWER than neap tides
Spring tides occur in Spring and neap tides can occur in any season
Which celestial body has the greater effect on Earth's tides?
Sun
Moon
Mars
Jupiter
What type of tides would this arrangement of earth-moon-sun create?
Neap tide
Spring tide
New moon tide
Full moon tide
What type of tide would this arrangement of earth-moon-sun create?
New moon tide
Neap tide
Full moon tide
Spring tide
What causes tides?
spring
friction
gravity
neap
Which of the following best describes the tilt of the earth when it is summer in the southern hemisphere?
The northern hemisphere is tilted toward the sun
The northern hemisphere is tilted neither toward or away from the sun
The northern hemisphere is tilted away from the sun
Why are you talking about the northern hemisphere when you asked about the southern hemisphere?
What does the earth's tilt cause?
The seasons
Day and Night
Gravity
Tides
What effect does the tilt of the earth have?
It changes the angle that the sun strikes the earth in different land areas
It causes the earth to be farther away from the sun at different times of the year
When the earth is tilted away from the sun we have night
When the earth is tilted away from the sun we have day
When an object turns around an internal axis (like the Earth turns around its axis) it is called a rotation.
True
False
When an object circles an external axis (like the Earth circles the sun) it is called a revolution.
True
False
One rotation of Earth is equal to
a day
6 months
a year
time zones
One revolution of Earth is equal to
a day
6 months
a year
time zones
What season is it in the Southern Hemisphere when it is fall in the Northern Hemisphere?
winter
spring
summer
fall
A satellite is defined as something that orbits a planet. How many NATURAL satellite(s) does Earth have?
Five
One
Two
Too many to keep an accurate count
Why do we always see the same side of the moon?
It's only visible at night
The moon rotates and revolves at roughly the same rate the Earth does
The moon doesn't rotate
None of the above
Which of the following statements is most accurate about the movement of Earth and the Sun?
The Earth rotates around the Sun
The Sun revolves around the Earth
The Earth rotates and revolves around the Sun
The Earth revolves around the Sun
The ____________ _____________ is a potential logical problem that would arise if a person were to travel to a past time. The name comes from the idea that if a person travels to a time before their grandfather had children, and prevents their grandparent from meeting, it would make their own birth impossible.
(a)
The universe is expanding! This means that:
all of the galaxies are spreading out.
the universe is cooling down.
the universe must have started from a single point.
all of the above.
What are the two (2) separate ways in which we describe time?
Military Time
Hammer Time
Universal Time
Regular Time
PM Time
What daily activity in the 1800’s caused America to rethink the way in which it expressed time?
Farming
Riding trains further distances
Adjusting clocks to daylight saving time
Sun clocks
In the 1800’s people rode trains more often, and because of the cross continental railroad being created, people rode trains further distances. The problem was that each town had its own time and so people were confused about what time it really was, and often missed connecting trains. What did America do to fix the problem?
Created a national train schedule that everyone had to follow.
Created daylight saving time to allow people to leave their house earlier with enough daylight to catch the train.
Upgraded sun clocks to analog clocks to be able to tell time more accurately.
Created time zones by determining where the sun was in the sky in relation to each town.
The main purpose of this time method is to avoid any confusion concerning what time of day it is. Times from 0:00 to 11:59 are the morning times and from 12:00 to 23:59 are afternoon/evening times.
Regular time
Global time
Military time
Adventure time
What role does gravity play in our universe?
Right after the Big Bang, gravity first slowed down all of the particles flying through space.
Gravity pulls particles together to form the stars, planets, and galaxies.
Gravity keeps planets and satellites in orbit
All of the above
During a solar eclipse ______________________________
The moon is blocked by the earth
The sun is blocked by the moon
The earth is blocked by the sun
Solar eclipses can't happen because the sun is too big
The position of the Earth, moon and Sun during a lunar eclipse is:
sun--moon--Earth
sun--Earth--moon
Earth--sun--moon
moon--sun--Earth
