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WorksheetsSenior Secondary 2023 OGUN STATE STAN SCIENCE QUIZ COMPETITION
Total questions: 88
Worksheet time: 2hrs 24mins
Dalam Rajah 2, K, L dan M adalah tiga titik pada tanah mengufuk. Diberi KLM ialah segitiga sisi sama, cari bearing L dari M.
Find the coordinate of the midpoint of the segment with the given endpoints J(-6, -12) and K(-18, 22).
M (5, -12)
M (-12, 5)
M (-6, 17)
M (17, -6)
Set 1: {10, 19, 38, 50, 51}
Set 2: {5, 21, 26, 39, 51}
Set 3: {9, 38, 50, 50, 51}
Set 4: {5, 28, 28, 28, 51}
Which data set has the largest standard deviation?
In a population of five university students with GPAs of 2.5, 2.3, 1.7, 1.4, and 1.1, a sample of three students are considered. What would be the standard deviation of the resulting sampling distribution?
0.53
0.41
0.35
0.22
The height of an item falling can be modeled by ht = -16t2 + ho . Where ho is the initial height in feet, and ht is the height in feet at time t in seconds. If I drop a penny at a height of 18.6 feet, how long will it take the item to hit the ground?
1.08 seconds
2.08 seconds
0.08 seconds
1.17 seconds
The number of foam fingers sold at the Kennedy Center from 1900 to 2004 can be modeled by S = 2t2 + 2t - 1, where t is the number of years since 1900. How many foam fingers were sold in 1976?
11,628
11,703
151
5,775
A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue?
10/21
11/21
2/7
5/7
Question 21 - GAT 2016
On any given display, how many different digits could be indicated by a sequence of seven
bits consisting of at least two 0s and at least three 1s?
Two
Four
Six
Eight
Write 2x2+8x−4 in the form a(x+b)2+c
a= 2 , b = 4, c = -6
a = 1, b = 2, c = -6
a = 0, b = 2, c = -6
a =1, b = -2, c = 6
If the terminal side of an angle in standard position coincides with one of the axes such as 90°, 180°, 270° or 360°, it is called a _____.
coterminal angles
radian
quadrant angle
angle
If two solid hemispheres of same base radii r, are joined together along their bases, then curved surface area of this new solid is
4πr2
6πr2
3πr2
8πr2
(a+a1)2−(a−a1)2=
1
2
3
4
what is the probability getting face card or Heart from well-shuffled pack of 52 playing cards?
25/52
13/52
11/52
52/11
A bag contains some sweets that can be divided equally among 3, 4 or 6 children with no remainder. What is the smallest possible number of sweets in the bag?
6
12
18
24
400,000+80,000+6,000+900+40+2
The equation 12x2+4kx+3 = 0 has real and equal roots if,
k = ± 3
k = ± 9
k = 4
k = ± 2
The roots of the quadratic equation are real and same if
b2−4ac <0
b2−4ac = 0
b2−4ac >0
None
David and Simon had twelve kiwis. David ate four of them, so Simon bought two more from the market, and then he ate three more kiwis.
How many do they have left? Please explain your answer.
In which of the following do molecules move from high to low concentrations?
Exocytosis
Endocytosis
Diffusion
Sodium/Potassium Pumps
Polypeptides are proteins made up of a chain of amino acid monomers. Polypeptide is which of the following?
Monomer
Amino Acid
Phospholipid
Polymer
A cell has 90% water and is placed in a beaker with 40% water. What will happen to the cell in this environment?
It will swell
It won't change
It will burst open
It will shrivel up
Which of the following best describes the fatty acid tails of a phospholipid?
Nonpolar & Hydrophobic
Nonpolar & Hydrophilic
Polar & Hydrophobic
Polar & Hydrophilic
Which process uses a vesicle instead of a protein to move molecules into a cell?
Exocytosis
Facilitated Diffusion
Sodium/Potassium Pumps
Endocytosis
What is the purpose of cholesterol in the cell membrane?
Provides structure
Gives the cell fluidity
Turns the membrane into olive oil consistancy
All of the Above
A team of ecologists observed feeding patterns of several populations in the desert. Which of the following best explains the difference in the amount of available energy in the trophic levels of the desert ecosystem?
There is less energy in the producers because they are at the bottom.
There is more energy in the producers because they provide energy for all the consumers in the ecosystem.
There is more energy available in the tertiary consumers because they need the energy to hunt.
There is more energy in the level containing the top predators because they are larger in size.
The FACT defined as
a statement based on repeated experimental observation that describes an aspect of the world
an objective, verifiable observation.
an opinion
subjective, one's idea
Science is based on experimentation. The investigative process tends to follow a general sequence. SELECT all that apply.
- Ask a question
- Conduct background Research.
Construct a Hypothesis.
Test your hypothesis
Analyze the facts.
Repeat the facts.
I have no clue.
Independent Variable vs Dependent Variable
There is no such term.
Independent Variable is on y-axis
Dependent Variable is on x-axis
Independent Variable is usually on x-axis whereas Dependent Variable is on y-axis.
What is the molarity of 4 g of NaCl in 3,800 mL of solution?
0.018 M
0.0011 M
1.052 M
0.062 M
How many grams of solute are dissolved in 125.0 mL of 5.00 M NaCl?
0.625 g NaCl
625 g NaCl
36.56 g NaCl
0.04 mol NaCl
Find the molarity of 186.55 g of sucrose (C12H22O11) in 250 mL of water.
2.18 M
0.746 M
1.18 M
0.545 M
How many mL of stock solution of 2M NaCl do you need to prepare 100 mL of 0.150M NaCl?
7.5 mL
15 mL
1333 mL
200 mL
How many mL of 10.8M HCl are required to make 100.0 mL of 3.00M acid?
27.8 mL
.278 mL
2.8 mL
278 mL
If you have a sample of MgCl2 with a mass of 15.0 g, what would need to be the final volume of the solution if you need the concentration to be 0.25 M?
630 mL
0.63 mL
0.039 mL
39 mL
Concentrated sulfuric acid (H2SO4) is sold as an 18 mol/L solution. A company uses this concentrated solution to prepare 2.0 L bottles of 0.5 mol/L sulfuric acid. How many 2.0 L bottles can be prepared from each litre of concentrated solution?
27
9
18
36
A lab requires 500 mL of HCl with at a concentration of 0.25 M, in the chemical storage you find a large 2.5 L bottle of concentrated HCl at 15 M. What volume of the concentrate should be used to make your final solution?
8.33 mL
50.0 mL
25.0 mL
12.67 mL
What is the correct # of protons, electrons, and neutrons for Cobalt - 59?
27 protons, 59 electrons, & 27 neutrons
59 protons, 59 electrons, & 86 neutrons
27 protons, 27 electrons, & 32 neutrons
27 protons, 32 electrons, & 27 neutrons
146C --> 0-1e + ________
Which energy path shows one way energy can get to a light bulb?
sun → water → dam → light bulb
sun → air → wind turbine → light bulb
sun → corn → ethanol plant → light bulb
All of the answers are correct.
What do wind turbines, hydroelectric dams, and ethanol plants have in common?
All produce electrical current without pollution.
All use generators to produce electrical current.
All convert gravitational potential energy to electrical current.
All convert thermal energy to electrical current.
If an object starts "at rest" in a problem, what is its INITIAL velocity?
Depends on the problem
0
Always positive
Always negative
If 40N of force is applied to Rollo Koster's 10 kg cart over a distance of 50 meters, how much work is done?
8000 J
8000 N
4000 J
2000 J
Select the true statement.
A scientific investigation must follow the order of steps of the scientific method.
A scientific investigation must complete all steps of the scientific method.
Science is fact.
Human bias affects science.
At the store, I can buy my son a 16 oz. box of crackers for $2.50 or a 32 oz. box of the same crackers for $5. Which box should I get if I want the better deal?
16 oz.
32 oz.
neither, they are the same value
At the store, I can buy my son a 16 oz. box of crackers for $2.50 or a 32 oz. box of the same crackers for $5. In determining the better deal, what kind of thinking do you use?
convergent
divergent
critical
creative
The funding of regional agriculture projects is usually undertaken by the
Central Bank
National Agricultural Bank
National Development Bank
Caribbean Development Bank
What is the area called where most of our mielies are grown?
Maize quadrangle
Mielie square
Corn circle
Field crops can survive in any environment, as long as they have enough water.
FALSE
TRUE
Organize these grain crops into summer or winter crops.
wheat
maize
sorghum
Place these crops into field, oil seed or industrial categories
Maize
Wheat
Sorghum
Sunflowers
Soya beans
Cotton
Sugarcane
What is the area called where most of our mielies are grown?
Maize quadrangle
Mielie square
Corn circle
Where are our winter crops mainly grown?
Free State
Eastern Cape
kwaZulu
Western Cape
Match the following
Maize
Wheat
Sorghum
Sunflowers
Soya Beans
Which of the following is not a component of Agscience Foundation?
Science Club
FFA- Future Farmers of America
SAE- Specialized Agricultural Experience
Classroom Instruction
The science of raising and managing animals for production and pleasure.
Social Science
Agronomy
Ecology
Animal Science
An area that should be considered when doing a self-analysis before choosing an occupation is the person’s physical makeup which means:
health, strength, stamina
how a person thinks about life
willingness to change
things that holds a persons attention
a series of activities that improves the value or appearance of the place of employment, school, home or community; the efficiency of a business or an enterprise; or the living conditions of the family.
Improvement
Experimental
Analytical
Exploratory
(a) SAE is helping students learn about (b) and become aware of possible agricultural careers through short times spent observing, (c) or helping. You may have to combine more than one exploratory (d) .
Placing students in jobs outside the regular classroom hours. They may be paid or unpaid (volunteer) work.
Placement
Service Learning
Exploratory
Improvement
Which is NOT a component to SAE?
Bachelors Degree
Student Led
Aligned with Career Plan
Measurable
What is the distinguishing characteristic of animals in Phylum Chordata?
Fins and scales
Permanent gills
Scaly skin
Backbone and skeleton
A list of steps to complete a task
Algorithm
Program
CPU
Hardware
What does LAN stand for?
Micheal
Little actual area
local area network
Large area network
What computer science concept stores information to be used later?
Conditional
Variable
Loop
Function
What computer science concept does something different depending on the situation?
Conditional
Variable
Loop
Function
What data type would store the value: 6.4?
String
List
Boolean
Float
What data type would store the value: True
Boolean
String
Integer
Float
What keyword do you use to start a function?
Function
Def
In
Key
How is our number system different from the binary system?
Our number system is base 5; the binary system is base 3
Our number system is base 10; the binary system is base 2
Our number system is base 10; the binary system is base 1
Our number system is base 100; the binary system is base 2
What does this define <!DOCTYPE> ?
Type of Letter
Type of Webpage
Type of Document
Type of Parapraph
