WorksheetsUnit 7 Our Solar System and Beyond I UNIT TEST
Total questions: 15
Worksheet time: 8mins
Which forms of alternative energy derive from the energy in sunlight?
biofuels
wind
all of the above
hydroelectric
What is the first step in converting the energy in sunlight to the energy in fossil fuels?
Energy in sunlight must be stored as chemical energy in plants.
Energy in sunlight must be stored as kinetic energy in molten rock.
Energy in sunlight must be stored as electrical energy in seawater.
Energy in sunlight must be stored as thermal energy in the atmosphere.
Which form of energy was transformed to the chemical energy stored in fossil fuels?
sunlight
motion
nuclear
heat
Which energy conversion is primarily responsible for the formation of fossil fuels?
chemical energy transformed to kinetic energy
kinetic energy transformed to heat energy
light energy transformed to chemical energy
heat energy transformed to chemical energy
What process converted light energy from the sun to the chemical energy stored in plants?
decay
compaction
photosynthesis
weathering
What form of energy does a hydroelectric generator convert to electrical energy?
heat energy
nuclear energy
kinetic energy
chemical energy
Sunlight heats Earth's surface and the molecules in air. This eventually gives rise to wind energy. Which sequence of energy changes describes how radiant energy in sunlight becomes energy in wind?
radiant energy → gravitational potential energy
radiant energy → thermal energy → kinetic energy
radiant energy → chemical potential energy → kinetic energy
radiant energy → chemical potential energy → gravitational potential energy
Which energy transformation results in wind energy?
heat energy light energy → kinetic energy
light energy → kinetic energy → heat energy
kinetic energy → heat energy → light energy
light energy → heat energy kinetic energy
Sunlight heats water on Earth's surface. The water eventually is changed to vapor in clouds. Which sequence of energy changes best describes how radiant energy in sunlight becomes energy in rainwater?
radiant energy → thermal energy chemical potential energy kinetic energy
radiant energy → chemical potential energy → gravitational potential energy
radiant energy → thermal energy → kinetic energy → gravitational potential energy
The nebular theory is the most widely accepted theory about the formation of the solar system. Look at the tiles below and drag the statements that are in agreement with the nebular theory.
The force of gravity pulled the particles in the nebula towards one another, forming a rotating disk.
The sun's great mass formed from the matter pulled in from all parts of the nebular cloud.
As the nebular particles moved closer together, intense pressure blew them apart.
A gigantic cloud of gas and dust collapsed.
What materials formed the inner planets in our solar system?
mostly dark matter, with some helium
large amounts of lighter matter, such as hydrogen
heavier materials, consisting mostly of rocky and metallic pieces
primarily noble gases
Why are planets slightly closer to the sun at certain points in their orbit?
Planets have a circular orbit, and the sun is always equi-distant from the planets.
The sun moves back and forth throughout the year.
The sun's strength changes over time, and its gravity pulls harder in some months.
The planets have an elliptical orbit which causes them to be slightly closer to the sun at some points in their orbit.
Why is the composition of the inner planets different from that of the outer planets?
The outer planets formed from lighter elements. The heavier elements that were left over formed into larger inner planets.
The inner planets formed from lighter elements. The heavier elements that were left over formed into larger outer planets.
The inner planets formed from heavier elements. The lighter elements that were left over formed into larger outer planets.
The outer planets formed from heavier elements. The lighter elements that were left over formed into larger inner planets.
Kepler is the astronomer who stated
Earth is the center of the universe
Jupiter has many moons
Saturn orbits the sun in a perfect circle
planets orbit the sun in an oval (elliptical) path
Our solar system contains many elements heavier than iron. What is the likely origin of these elements?
a white dwarf
a black hole
a supernova explosion
the sun
