PHY 102 EVALUATION EXAM 2025/2026 QUESTIONS AND
SOLUTIONS MARKED A+
✔✔Mercury has extreme high and low temperatures between night and day because? -
✔✔it has no atmosphere to moderate temperatures over the globe
✔✔Overall, Jupiters composition is most like that of? - ✔✔The sun
✔✔Pluto share is most characteristics weather which family of objects in the solar
system? - ✔✔Kuiper belt
✔✔Strong evidence that the dinosaurs were killed by a meteorite impact is provided by?
- ✔✔An unusually rich layer of rare elements in the rock record at 65 million years ago
✔✔The inner planets formed - ✔✔by collisions and mergers of planetesimals
✔✔What are the Venusian clouds made of? - ✔✔sulfuric acid droplets
✔✔What atmospheric constituent is responsible for the blue color of Uranus and
Neptune? - ✔✔methane
✔✔What effect does the greenhouse affect have on the surface environment of Venus?
- ✔✔It has raise the surface temperature by Hundreds of degrees Celsius
✔✔What is the source of long period Comets? - ✔✔The Oort cloud
✔✔What is the shoemaker-Levy nine impact - ✔✔The 1994 impact of a chain of
comment fragments into Jupiter
✔✔Where is the best place to look for meteroites? Why? - ✔✔Antarctica, because the
meteorites strongly contrast the icy terrain
✔✔Which direction do a comment dust and plasma tales point? - ✔✔Generally away
from the sun
✔✔Which of the following in our solar system bodies have the densest atmosphere? -
✔✔Venus
✔✔Which planet rotates almost on its side? - ✔✔Uranus
✔✔Which planets day is longer than its year, and which planet would float in water? -
✔✔Venus, Saturn
, ✔✔Which planets position was predicted using newtons law of gravitation and then later
found? - ✔✔Neptune
✔✔Why does the moon like an atmosphere? - ✔✔It's too small to hold onto gases
✔✔Why is Venus's surface hotter than mercury's? - ✔✔Carbon dioxide and Venus's
atmosphere traps heat radiating from at service
✔✔Why would it be foolish to send an astronaut to land on Jupiter? - ✔✔It has no solid
surface for them to land on
✔✔Any theory of how our solar system formed must be able to explain which of the
following? - ✔✔The disk shape of the solar system, the directions of the rotations and
revolutions of the planets, And Venus' backward rotation
✔✔Compare with a ground pay spectrum, the spectrum of a star observed from above
earths atmosphere would show? - ✔✔Fewer absorption lines
✔✔Electromagnetic radiation carries? - ✔✔Energy
✔✔Light streaming from the sun pushes away small particles, eventually clearing the
solar nebula from the inner solar system, and finally the outer solar system is known
as? - ✔✔Radiation pressure
✔✔Place the following in order from most energy to least energy - ✔✔Gamma rays,
ultraviolet light, visible light, infrared rays
✔✔Roughly how big does a green need to be before being considered planetesimal? -
✔✔1 km
✔✔The Orion nebula, M - 42, is a hot, thin cloud of glowing gas, so it's spectrum is? -
✔✔A few bright lines against a dark background
✔✔The solar system is differentiated because? - ✔✔only rocky and metallic particles
could form close to the Sun.
✔✔The three laws dealing with the creation of various spectra are due to - ✔✔Kirchhoff
✔✔Today's major observatories use what kind of telescope? - ✔✔Reflecting
✔✔What is spectroscopy? - ✔✔an analysis of the way in which atoms absorb and emit
light
SOLUTIONS MARKED A+
✔✔Mercury has extreme high and low temperatures between night and day because? -
✔✔it has no atmosphere to moderate temperatures over the globe
✔✔Overall, Jupiters composition is most like that of? - ✔✔The sun
✔✔Pluto share is most characteristics weather which family of objects in the solar
system? - ✔✔Kuiper belt
✔✔Strong evidence that the dinosaurs were killed by a meteorite impact is provided by?
- ✔✔An unusually rich layer of rare elements in the rock record at 65 million years ago
✔✔The inner planets formed - ✔✔by collisions and mergers of planetesimals
✔✔What are the Venusian clouds made of? - ✔✔sulfuric acid droplets
✔✔What atmospheric constituent is responsible for the blue color of Uranus and
Neptune? - ✔✔methane
✔✔What effect does the greenhouse affect have on the surface environment of Venus?
- ✔✔It has raise the surface temperature by Hundreds of degrees Celsius
✔✔What is the source of long period Comets? - ✔✔The Oort cloud
✔✔What is the shoemaker-Levy nine impact - ✔✔The 1994 impact of a chain of
comment fragments into Jupiter
✔✔Where is the best place to look for meteroites? Why? - ✔✔Antarctica, because the
meteorites strongly contrast the icy terrain
✔✔Which direction do a comment dust and plasma tales point? - ✔✔Generally away
from the sun
✔✔Which of the following in our solar system bodies have the densest atmosphere? -
✔✔Venus
✔✔Which planet rotates almost on its side? - ✔✔Uranus
✔✔Which planets day is longer than its year, and which planet would float in water? -
✔✔Venus, Saturn
, ✔✔Which planets position was predicted using newtons law of gravitation and then later
found? - ✔✔Neptune
✔✔Why does the moon like an atmosphere? - ✔✔It's too small to hold onto gases
✔✔Why is Venus's surface hotter than mercury's? - ✔✔Carbon dioxide and Venus's
atmosphere traps heat radiating from at service
✔✔Why would it be foolish to send an astronaut to land on Jupiter? - ✔✔It has no solid
surface for them to land on
✔✔Any theory of how our solar system formed must be able to explain which of the
following? - ✔✔The disk shape of the solar system, the directions of the rotations and
revolutions of the planets, And Venus' backward rotation
✔✔Compare with a ground pay spectrum, the spectrum of a star observed from above
earths atmosphere would show? - ✔✔Fewer absorption lines
✔✔Electromagnetic radiation carries? - ✔✔Energy
✔✔Light streaming from the sun pushes away small particles, eventually clearing the
solar nebula from the inner solar system, and finally the outer solar system is known
as? - ✔✔Radiation pressure
✔✔Place the following in order from most energy to least energy - ✔✔Gamma rays,
ultraviolet light, visible light, infrared rays
✔✔Roughly how big does a green need to be before being considered planetesimal? -
✔✔1 km
✔✔The Orion nebula, M - 42, is a hot, thin cloud of glowing gas, so it's spectrum is? -
✔✔A few bright lines against a dark background
✔✔The solar system is differentiated because? - ✔✔only rocky and metallic particles
could form close to the Sun.
✔✔The three laws dealing with the creation of various spectra are due to - ✔✔Kirchhoff
✔✔Today's major observatories use what kind of telescope? - ✔✔Reflecting
✔✔What is spectroscopy? - ✔✔an analysis of the way in which atoms absorb and emit
light
