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WorksheetsQ2 Science Study Guide
Total questions: 94
Worksheet time: 48mins
True or False: The energy cost of an energy resource decreases when the easy deposits of that resource have already been consumed.
True or false: Solar energy has a higher net-energy ratio than petroleum.
Every 6 barrels of oil that are made available for use require 2 barrels for extraction and refinement. What is the net energy from this process?
What is a renewable resource?
A natural resource that can be replenished or regenerated within a human lifetime or at a rate that is faster than its rate of consumption or depletion.
A natural resource that can only be replenished or regenerated at a rate slower than its rate of consumption or depletion.
A man-made resource that can be replenished or regenerated within a human lifetime.
A natural resource that cannot be replenished or regenerated within a human lifetime.
__________________ are energy sources created from the remains of formerly living organisms
The ultimate source of most energy that we use, renewable and nonrenewable, is ______.
Fossil fuels are probably forming deep in the crust somewhere, so why are they considered nonrenewable resources?
The ____________________ model is a simple theory that explains all the matter in the universe and its interactions.
True or false: Atoms are the smallest fundamental particles
True or false: Gravitons have only been hypothesized to exist because of what we know about how gravity effects matter, but they have never been observed.
True or false: According to the standard model, all known matter consists of quarks and leptons that interact by exchanging bosons, which transmit fundamental forces.
Protons and neutrons are made up of fundamental particles of matter called __________.
Which scientist is credited with discovering the atom?
What was the significance of Ernest Rutherford's gold foil experiment?
Which of the following are types of quarks?
Which of the following are leptons?
Which of the following are bosons?
photons, W and Z, gluons.
quarks, leptons
Charm, strange
Which of these is a fundamental force carrying particle?
muon
What keeps the nucleus of an atom together?
True or False: Both protons and neutrons consist of one up quark and two down quarks.
Fill in the blank(s):
When protons change to neutrons, this changes atoms of one ____________________ to atoms of another with different atomic properties.
Which subatomic particles are affected by electromagnetic force?
Fill in the blank(s):
The number of protons in a nucleus is called the ____________________ number and designated by the symbol Z.
Fill in the blank(s):
Each different isotope has the same number of ____________________ and a different number of ____________________.
How many neurtrons are in Carbon-13?
Why are alpha particles easier to stop by materials than beta particles?
What element is an alpha particle?
If Carbon undergoes beta decay, what element results?
U-235 nuclei split when struck by _______.
A moderator in a nuclear reactor decelerates the neutrons.
True
False
Partially True
Nuclear power plants produce electricity through _____.
What is one major advantage of nuclear energy vs. fossil fuels?
True or False: The speed of most waves depends on the medium
True or false: waves generally travel fastest through gases and slowest through solids.
What is the term for the distance between corresponding points of adjacent waves?
What type of waves are sound waves?
True or false: Sound waves do not travel through a vacuum.
Pitch is our brain’s interpretation of which feature of a sound wave?
____________________ rays are the most dangerous of all electromagnetic waves because they have the highest frequencies and greatest energy.
Which color of visible light has the highest frequency?
Which electromagnetic waves have the longest wavelengths?
Which color of visible light has the longest wavelength?
The double-slit experiments showed that light…
Which of the following phenomena demonstrate the wave theory of light?
Interference, and diffraction.
A ____________________ is a tiny packet of energy released when an electron returns to a lower energy level.
What were the conditions in the universe at the time of the big bang.
Extremely hot and dense, with all matter and energy concentrated in a singularity.
About how many billion years ago did the Big Bang occur?
14 billion years ago
True or false: The Milky Way galaxy is about the same age as the universe.
Which gasses are the most abundant in the Universe?
How does the collider at the Brookhaven National Laboratory provide a model for the big bang?
A small- to mid-sized star that has collapsed is known as a _____.
True or false, When inward force is equal to outward force, a star collapses.
According to the scientists, the Sun will become a red giant in approximately _____.
A star stays on the main sequence as long as…
What color stars have the highest surface temperature?
Most of the stars on the HR Diagram are classified as what type of stars?
What is the color of the stars with the lowest surface temperature?
Hubble’s Law states that:
When a light source moves away from us, what is the consequent stretching out of wavelengths known as?
True or false. When an object is moving towards us, there is a decrease in the wavelength of the light emitted from that object. This is known as the blueshift.
What is the significance of the idea that the universe is expanding?
The basic unit of structure and function of living things is the ____________________.
Atom
Nucleus
Organ
Select all possible answers:
Which of the following are examples of homeostasis?
A person sweats to cool down while sitting outside in the sun.
Bacteria moving towards sugar.
A bird fluffs its feathers to retain more heat on a cold day.
An amoeba divides into two daughter cells.
What is the correct ordering of chromosome, gene, and nucleus from largest to smallest?
Select all possible answers:
Which unifying principle(s) form the basis of biology?
germ theory
gene theory
evolution
cell theory
homeostasis
How are adaptations related to evolution?
What is the difference between competition and symbiosis?
Which concept describes how the survival of one organism relies on interactions with other organisms?
What term refers to all the populations living in the same area?
Multiple organ systems working together form which level of organization?
Select all possible answers:
Which of the following is an organ system?
the digestive tract
Nervous System
Lung
Heart
What is the level of organization above the cell?
What is an ecosystem?
Why is it incorrect to say that giraffes evolved their long necks by stretching them out over time and then passing this trait to their offspring?
Evolution occurs from adaptations that occur during the life of the organism.
What is an adaptation in the theory of evolution?
Who is credited with popularizing the theory of evolution?
What is natural selection?
What are the four main types of organic compounds?
True or false: a compound found only in living things is called an inorganic compound.
An element essential to life due to its ability to form stable bonds with many elements, including itself, is ____________________.
What makes carbon essential to life?
What are enzymes?
Who do organisms need enzymes to survive?
True or false: an organism's body can carry out all necessary biochemical reactions without enzymes.
What happens to an enzyme after a biochemical reaction?
Who coined the term cell, in reference to the tiny structures seen in living organisms?
What are the three main parts of cell theory?
List the four parts common to all cells.
Which of the following is an example of a prokaryote?
What is the function of the ribosome?
What are the main differences between prokaryotic and eukaryotic cells?
The presence of cytoplasm and cytoskeleton
List three structures that are found in plant cells but not in animal cells.
True or false: Chloroplasts are capable of converting light energy to chemical energy, such as the energy that is stored in sugars.
The fluid within the chloroplast is called _____.
