Physics
the distance traveled by car is 12 meters in 6 seconds. what is the speed of the car? (give the unit as well)
2 m/s
which ion dissociates when acid is added to water?
H+ ions
What is the most common greenhouse gas
carbon dioxide
What are the names given to the basic subunits of a nucleic acid?
MONONUCLEOTIDES or NUCLEOTIDES
What is the surface area of a sphere of radius "r"?
4 pi R^2
what is the shape in which planets orbit the sun?
eclipse
in redox what is the loss of hydrogen?
oxidation
what is eutrophication?
Eutrophication is the process by which a body of water becomes overly enriched with nutrients, particularly nitrogen and phosphorus, which often leads to an overgrowth of algae.
What is the full form of DNA?
Deoxyribonucleic Acid
Twelve socks are in a drawer; 4 are red, 7 are blue, and 1 is green. What is the
maximum number of socks that you can pull out and only have 2 matching pairs?
7
Which theory states that it speed of light is constant in a vacuum?
The Special Theory of Relativity
how does a catalyst lower the activation energy of a reaction?
A catalyst lowers the activation energy by providing an alternative reaction pathway with a lower energy barrier.
Why is black carbon dangerous?
It absorbs heat
Complete the sentence. The alternative forms of a gene at the same locus on homologous chromosomes are called what?
ALLELES
Express the binary number 10010 as a decimal number ?
18
A ball is thrown vertically upward. At the highest point, what are its velocity and acceleration?
Velocity = 0 m/s
Acceleration = 9.8 m/s² downward
what is the formula for calculating the PH of a substance?
PH= -log(H+)
How much energy is typically transferred through each trophic level in a food chain?
only about 10% of the energy
How many PAIRS of nerves leave the vertebrate brain?
12
Give two trigonometric functions that are NEGATIVE in BOTH the third and fourth quadrants?
SINE and COSECANT
A simple pendulum of length L is oscillating with a small amplitude. If the amplitude is doubled, how does the period of the pendulum change?
doubling the amplitude does not affect the period. The period remains the same, regardless of amplitude.
What is the difference between an alkane, alkene, and alkyne in terms of their bonding and general formula?
alkane has a single carbon bond, alkene has a double and alkyne has a triple carbon bond.
What is the Albedo Effect?
Ice reflects sunlight; melting ice increases warming.
The human pelvic girdle is composed of 3 fused bones on each side for a total of 6 bones. Name the three fused bones.
ILLIUM, ISCHIUM, and PUBIS
What is the limit of the fraction 1/x as x approaches infinity?
0