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Questions and Answers
What is the SI unit of electric charge?
What is the SI unit of electric charge?
- Coulomb (correct)
- Ohm
- Ampere
- Volt
In the context of a transformer, which principle is primarily utilized for its operation?
In the context of a transformer, which principle is primarily utilized for its operation?
- Electromagnetic induction (correct)
- Conservation of energy
- Kirchhoff's laws
- Ohm's law
Which of the following correctly represents the derivative of sin x?
Which of the following correctly represents the derivative of sin x?
- cos x (correct)
- -sin x
- tan x
- -cos x
What is the equation of a circle centered at (h, k) with radius r?
What is the equation of a circle centered at (h, k) with radius r?
During the process of photosynthesis, what is converted into energy?
During the process of photosynthesis, what is converted into energy?
What is the smallest unit of life that can carry out life functions?
What is the smallest unit of life that can carry out life functions?
What is the primary hormone that plays a critical role in blood sugar regulation?
What is the primary hormone that plays a critical role in blood sugar regulation?
Which process describes the division of bacteria for asexual reproduction?
Which process describes the division of bacteria for asexual reproduction?
Which quantity determines the acceleration of an object according to Newton's second law of motion?
Which quantity determines the acceleration of an object according to Newton's second law of motion?
What is the derivative of the function y = 3x^2 + 2x?
What is the derivative of the function y = 3x^2 + 2x?
Identify the primary organelle responsible for photosynthesis in plant cells.
Identify the primary organelle responsible for photosynthesis in plant cells.
In chemistry, what is characterized as a substance made up of two or more elements chemically combined?
In chemistry, what is characterized as a substance made up of two or more elements chemically combined?
What is the result of the operation $2^4 - 2^2$?
What is the result of the operation $2^4 - 2^2$?
Which of the following bones is classified as the longest in the human body?
Which of the following bones is classified as the longest in the human body?
What is the chemical symbol for Sodium Chloride?
What is the chemical symbol for Sodium Chloride?
The pH of a highly acidic solution is typically:
The pH of a highly acidic solution is typically:
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Study Notes
Physics
- Scalar quantities have magnitude only; mass is an example.
- Newton's first law of motion is known as the law of inertia.
- The unit of power is the watt (W).
- The time period of a simple pendulum is dependent solely on its length.
- A concave lens always forms a virtual and erect image.
Mathematics
- The expression 2^3 * 3^2 simplifies to 72.
- The slope of the linear equation y = 2x + 5 is 2.
- The sine of 90 degrees equals 1.
- The area of a circle is calculated using the formula πr².
- The roots of the quadratic equation x² - 4x + 3 = 0 are 1 and 3.
Biology
- The cell is the basic unit of life.
- Photosynthesis takes place in chloroplasts.
- Mitosis is the process of cell division resulting in two identical daughter cells.
- The human heart is categorized as a muscular organ.
- The femur is the largest bone in the human body.
Chemistry
- An atom is the smallest particle of matter that can exist independently.
- Water's chemical formula is H₂O.
- The pH level of a neutral solution is 7.
- Sublimation is the process where a substance transitions directly from solid to gas.
- Oxygen atoms contain six valence electrons.
Additional Physics Questions
- Coulomb is the unit of electric charge.
- An ammeter is used to measure electric current.
- Transformers work based on the principle of electromagnetic induction.
- The speed of light in a vacuum is 3 x 10⁸ m/s.
- Refraction is the bending of light when passing through different media.
Additional Mathematics Questions
- log₁₀ 100 equals 2.
- The derivative of sin x is cos x.
- The integral of x² is x³/3.
- The circle equation with center (h, k) and radius r is (x-h)² + (y-k)² = r².
- sin 30° equals 1/2.
Additional Biology Questions
- Decomposition converts organic matter into inorganic matter.
- Insulin regulates blood sugar levels.
- Kidneys are responsible for excreting urea.
- The smallest unit of biological organization that performs life functions is the cell.
- Binary fission refers to asexual reproduction in bacteria.
Additional Chemistry Questions
- An ionic compound forms from the combination of a metal and a non-metal.
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