WorksheetsSpace Unit Test
Total questions: 40
Worksheet time: 20mins
Earth revolves around the Sun. What keeps Earth in orbit around the Sun?
spherical shape of Earth
gravitational attraction to the Sun
movement of the sun around Earth
tilt of its rotational axis toward the Sun
Compare a planet with an astronomical unit of 1.5 to Earth.
The planet is closer to the Sun than Earth
The planet is farther from the Sun than Earth
The planet has the same gravitational force as Earth
The planet is the same distance from the Sun as Earth
One type of light that comes from the Sun is called infrared. Human eyes cannot see this type of light, but specially built cameras can. Why can't human eyes detect infrared light?
Infrared light is too fast for our eyes to detect
The energy of infrared light is too high for our eyes to detect
The wavelength of infrared light is too long for our eyes to detect
The Sun does not give off enough infrared light for our eyes to detect
Why do temperatures on the moon’s surface vary more there than temperatures on Earth’s surface?
The moon has patches of ice
The moon has no atmosphere
The moon’s surface has many craters
The moon has lower density than Earth
What object is at the center of the solar system within the heliocentric model?
Ear
Mercury
Moon
Sun
Scientific models are used to understand, design, think about, predict, and test ideas in science. Which of these is not a use of a scientific model?
To study very small objects such as viruses and cells
To study distant objects such as the planets, stars, and galaxies
To directly observe something, such as a newly found tree species
To study extremely large objects, such as layers of the Earth and tectonic plates
An astronomical unit (AU) is _________.
Any very large unit, such as a light-year
The average distance between any two planets
The average distance between the Sun and Earth
The average distance between the Sun and the Astro Belt
In which of these situations would light slow down?
From Glass to Air
From Ice to Water
From Plastic to Air
From Vacuum to Air
When a hemisphere is tilted away from the Sun, it receives indirect sunlight. What season will occur in the Northern Hemisphere if it is receiving the most indirect rays of sunlight possible?
s
summer
winter
fall
Sunlight is composed of energy that is visible to humans and energy that is not visible to humans. Which statement describes how the visible energy from the Sun is different from the invisible energy.
It has different amplitudes
It has different wavelengths
It travels a different distance through space
It travels at a different speed through space
Alex hears a loud rumble as he watches a space shuttle lift off from the launch pad. What medium does the sound wave travel through to get from the shuttle to Alex’s ears?
Air Particles
Empty Space
Large Vibrations
Mechanical Energy
What is one way that electromagnetic waves differ from sound waves?
Electromagnetic waves move slower
There is no difference between them
Electromagnetic waves are longitudinal
Electromagnetic waves can travel through empty space
When light is absorbed, it causes the temperature of an object to increase. When painting a space shuttle, experts recommend that in order to keep the space shuttle cooler, people choose paint colors that will reflect the most light. Which of these colors would reflect the most sunlight?
rd
black
white
yellow
Which of the following best describes the geocentric model of stars and planets?
The belief that planets revolve around the stars
The belief that stars and planets revolve around Earth
The belief that stars and planets revolve around the Sun.
The belief that planets and the stars revolve around the Moon
When you look in a mirror your image appears to be reversed. Which interaction of light rays can produce this effect?
absorbed light rays
reflected light rays
refracted light rays
scattered light rays
Which sequence describes the structure of the universe from smallest to largest?
Planet, star, solar system, galaxy
Galaxy, planet, star, solar system
Solar systems, galaxies, star, planet
Star, planet, galaxies, solar systems
Ultraviolet light comes from the Sun and can sometimes cause serious health issues such as skin cancer. Why does ultraviolet light have this effect on our bodies, but visible light does not?
Ultraviolet light is attracted to our skin
Ultraviolet light moves faster than visible light
Ultraviolet light has less energy than visible light
Ultraviolet light has more energy than visible light
All planets in our Solar System rotate on an axis. However, Venus has a very small axial tilt, so its poles are almost straight up and down. This means there is little difference in daylight in Venus's Northern and Southern Hemispheres during the year. Which of the following is a correct statement about Venus?
Venus has no seasons because its axis is not tilted. The tilt is what causes seasons
Seasons on Venus are backwards. Winters are very hot and summers are very cold
Venus's seasons are very extreme. Summers are extremely hot and winters are exceptionally cold
Venus's and Earth's seasons are the same. The planets experience similar temperature changes
Which of these examples demonstrates light refracting?
light from the sun creating a shadow
light moving through a glass of water
light passing underneath a closed door
light from a candle flickering in the wind
If two stars are 100 light-years apart, what does this mean?
One of the stars formed 100 years before the other
The stars are 100 million kilometers from each other
It takes 100 years for light to travel from one star to the other
It would take 100 years for a spaceship to travel between these two stars
Dakota and Amiya were discussing the best definition to describe term, “lightyear”. What definition would be best?
The speed light travels
The distance light can travel in a year
How many years it takes light to be emitted
How long it takes light to get to you from the sun
Scientists use satellites in space to monitor and record the infrared radiation given off by Earth. In which example would a scientist most likely be using this kind of data?
to study the area of land flooded by a tsunami
to study the movement of Earth's crust during earthquakes
to study the rate of cloud formation over a certain continent
to study the difference between the temperatures at Earth's poles
Brandon learns that absolute brightness is a measure of a star's luminosity and is determined by a combination of the star's physical properties. Which of the following correctly describes the relationship between the absolute brightness of two stars that have the same size?
The star that is hotter will have a lower absolute brightness
The star that is hotter will have a higher absolute brightness
The stars’ absolute brightness will depend on how close to they are to the Sun
The stars will have the same absolute brightness since the size is the same
The surface temperature of a star is indicated by which characteristic?
absolute brightness
color
shape
size
The stars, Rigel and Betelgeuse, are both found in the constellation, Orion. Rigel is a blue supergiant, and Betelgeuse is a red supergiant. Which of the following correctly compares the temperatures of Rigel and Betelgeuse?
Rigel is hotter than Betelgeuse, because blue stars are hotter than red stars.
Betelgeuse is hotter than Rigel, because red stars are hotter than blue stars
Rigel and Betelgeuse are close to the same temperature, because they are both super giants
Betelgeuse and Rigel are close to the same temperature, because they are about the same distance from the Sun
The Sun’s energy warms the Earth more at the equator than at the poles. Which of the following best explains why?
Sunlight is less spread out near the equator
Sunlight is more spread out near the equator
The equator lacks ice, which reflects the sun’s energy
The equator has more of a curved surface than the poles
Which of these statements is a correct explanation of how objects absorb and reflect colors of light?
Black objects absorb almost all wavelengths of light.
White objects both absorb and reflect almost all wavelengths of light
Red objects absorb red light and reflect all other wavelengths of light
Blue objects absorb none of the wavelengths of light and reflect only blue light
During which two phases of the moon can we expect extremely high tides and extremely low tides?
First quarter and third quarter
First quarter and crescent
Third quarter and new moon
Full moon and new moon
Bill is swimming and drops his swim goggles in the pool. He looks from above the top of the water to see where they fell and positions himself directly above the goggles. He dives down to the bottom of the pool with his eyes closed so that the chlorine doesn’t burn his eyes. He tries several times to retrieve his goggles but comes up empty-handed each time. Which interaction of light is distorting the image of where his goggles appear to be?
refraction of sunlight by the water
scattering of sunlight by the water
absorption of sunlight by the water
reflection of sunlight on the goggles
Proxima Centauri is the closest star to Earth after the Sun and is located 4.3 light years away from Earth. How long does it take light from Proxima Centauri to reach Earth?
1 year
4.3 yeras
4
10 trillion year
Cameron was asked to express the distance between the Milky Way galaxy and the Andromeda galaxy. What is the most appropriate unit of measurement to use?
meter
kilometer
light year
astronomical unit
Which factor is not used to determine a star's apparent magnitude?
size of the star
density of the star
temperature of the star
distance from Earth of the star
During which moon phase do we have the possibility of seeing a lunar eclipse?
Full moon
New moon
Gibbous moon
First quarter moon
The medium through which a mechanical (sound) wave passes can be a solid, a liquid, or a gas. Properties of a wave might change when it moves from one medium to another. What happens to the speed of a sound wave when it moves from a gas to a solid?
It speeds up
It slows down
It remains the same
It speeds up and then slows down
What holds clusters of matter together in the universe?
gravity
light
radi
supercluster
The points labeled on the chart below represent the approximate size of the Earth, the Milky Way, the Moon and the Sun. The approximate size of the Solar System is also shown. Which object represents the Sun?
W
X
Y
Z
The water level at the beach changes during the day. What causes the different water levels?
Earths revoli
The moon's
earths magnetic field
the moon's gravitational pull
Saturn is 9.5 astronomical units (AU) from the Sun and Mars is only 1.5 AU from the Sun. Saturn is also much larger than Mars. Based on this information, how does the average surface temperature on Mars compare to the average surface temperature on Saturn?
Since Mars is closer to the Sun than Saturn, it has a higher average surface temperature.
Saturn is larger than Mars and absorbs more light, so it has a higher average surface temperature
Since both planets are more than 1 AU from the Sun, their average surface temperatures are equal
Even though Saturn is further away, Saturn's rings cause it to have a lower average surface temperature
The apparent brightness of a star depends on which factors?
the star’s shape, distance and size
the star’s brightness, size and distance
the star’s temperature, size and composition
the star’s composition, shape and temperature
When the Northern Hemisphere is tilted toward the Sun, how does this affect the length of our day?
Our days are longer, and our nights are longer
Our days are longer, and our nights are shorter
Our days are shorter, and our nights are longer
The length of our days and nights are constant throughout the year
