Sci 9 - Bio & Chem
What is the chemical name of a molecular substance that is composed of one carbon atom and four chlorine atoms?
CH4, Carbon tetrachloride.
True or False. VR (virtual reality), baby food, golf balls, bike helmets and winter car tires all had technological developments thanks to space exploration.
True!
In fossil fuel generation plants, antipollution systems were created to remove sulfur dioxide, a harmful gas that causes acid rain. What is the name of these systems?
Scrubbers.
What is the square root of 98. Record your answer to the nearest tenth.
9.9
Find the missing number in the sequence: 1,2,4,8,__, 32.
16
Which statement(s) are true about helium, neon, and argon?
1. They have the same number of neutrons.
2. They have a similar amount of protons
3. They react with substances in a similar way.
Statement 3.
What does the primary life support system on a space suit do?
Supplies the suit with pressure and oxygen required.
What is the difference between a sundial, merkhet, and quadrant? Which, if any, measure altitude or azimuth?
Sundial - uses the Sun’s shadow to tell the time.
Merkhet - uses stars to tell time at night.
Quadrant - measures the height (altitude) of stars or the Sun in the sky.
None measure the azimuth.
Find the difference: 26 - 23
56
(Power laws only apply if two numbers of the same base are being multiplied or divided).
Write a linear inequality to represent the following: Five chocolate bars cost more than $12 and the cost of each bar is unknown.
5x > 12
Which pair of compounds are ionic?
A. C6H6 and BeF2
B. LiCl and NO2
C. BeF2 and LiCl
Pair C
How does the placement of an ammeter and voltmeter differ within a circuit?
Ammeter: can be placed anywhere in the circuit.
Voltmeter: must be placed on both sides of the load (ex: bulb).
Is x = 1 the solution to the equation:
3(x+4) + 2x < 4x + 9
17 < 13. No x=1 is not the solution.
Solve: (-3)(42 + 20)
-51
Is x=2 the solution for the equation:
2(x+3) + 5x = 3x + 14
20 = 20. Yes, x = 2 is the solution.
What are the five types of asexual reproduction?
Binary Fission, Budding, Asexual Spores, Fragmentation, and Vegetative Growth.
True or false. In a series circuit, multiple light bulbs in the circuit will experience an equal amount of voltage, totalling the amount of voltage supplied by the source.
False. They will all total the amount of voltage supplied by the source (9V), but the amount of voltage each bulb receives will decrease (6V, 2V, 1V).
Find the missing number in the following sequence:
0,3,8,15,24,35,48,___
63
The fraction (37/8) is found between which two consecutive whole numbers?
4 and 5.
Simplify:
-5x (z2 - 4x + 3)
−5xz2+20x2−15x
You want to determine the probability of a baby being a tongue roller (T). Parent 1 is heterozygous. Parent 2 in homozygous recessive. List the phenotype and genotypes of all potential offspring combinations.
Genotype: 50% Tt and 50% tt
Phenotype: 50% Tongue roller and 50% non-roller.
We can use spectrum analysis to determine if celestial bodies are moving towards or away from earth. If a celestial body is moving away from Earth, describe what happens to the frequency, energy, and wavelength of the light waves.
Frequency: Lowers
Energy: Decreases
Wavelength: Elongates
Which scientists are responsible for the:
A) Nuclear Model
B) Billiard Ball Model
AND
C) Raisin Bun Model
A) Rutherford
B) Dalton
C) Thomson
Write 0.56 as a reduced fraction.
14/25
The area of a rectangle is 72t2 and its width is 12t. What is its length?
6t