Student Questions

According to Kepler’s Third Law of Planetary Motion, the square of the orbital period T of a planet is directly proportional to the:A. Cube of the semi-major axis of its orbit (r³)B. Square of the semi-major axis of its orbit (r²)C. Semi-major axis of its orbit (r)D. Inverse square of the semi-major axis of its orbit (\(\frac{1}{r^{2}}\))

If the mass of the Earth remains constant but its radius shrinks by 1%, the value of the acceleration due to gravity g on its surface will: A. Decrease by 1%B. Increase by 1%C. Decrease by 2%D. Increase by 2%

During a free-fall, which of the following quantities remains constant for the falling body? A. VelocityB. AccelerationC. Kinetic energyD. Momentum

What happens to the mass of an object when it is taken from the Earth to the Moon?A. It becomes one-sixthB. It becomes six timesC. It increases slightlyD. It remains the same

Who proposed the planetary laws of motion? A. Isaac Newton B. Johannes Kepler C. Galileo Galilei D. Nicolaus Copernicus

What is the weight of a body at the center of the Earth? A. Infinite B. Same as on the surface of the Earth C. Zero D. Less than the weight on the Earth's surface

The value of the acceleration due to gravity (g) on the surface of the moon is about: A. The same as that on Earth B. One-sixth of that on Earth C. One-third of that on Earth D. Six times that on Earth

What happens to the gravitational force between two objects if the distance between them is doubled? A. It becomes double B. It becomes half C. It becomes one-fourth D. It remains the same

A country experiences a bumper harvest and its government silos are overflowing with grain. However, due to a broken public distribution network and sudden spikes in local market pricing, a significant portion of the low-income population cannot afford to buy groceries. Which specific dimension of food security has broken down in this scenario? A) Availability of food B) Accessibility of food C) Affordability of food D) Accountability of food

Statements: Some windows are doors. Some doors are walls. Conclusions: I. Some windows are walls. II. No window is a wall. A) Only conclusion I follows B) Only conclusion II follows C) Either conclusion I or II follows D) Neither conclusion I nor II follows

Statements: Some scientists are writers. All writers are clear thinkers. Conclusions: I. Some scientists are clear thinkers. II. Some clear thinkers are scientists. A) Only conclusion I follows B) Only conclusion II follows C) Both conclusion I and II follow D) Neither conclusion I nor II follows

Statements:All laptops are computers. No computer is a television. Conclusions: I. No laptop is a television. II. Some computers are laptops. A) Only conclusion I follows B) Only conclusion II follows C) Both conclusion I and II follow D) Neither conclusion I nor II follows

Statements: All pens are markers. Some markers are scales. Conclusions: I. Some pens are scales. II. Some scales are markers. A) Only conclusion I follows B) Only conclusion II follows C) Both conclusion I and II follow D) Neither conclusion I nor II follows

Which Venn diagram best represents the relationship between: Gold, Carbon, and Oxygen? Diagram A: Three mutually intersecting circles. Diagram B: Three completely isolated, non-touching circles. Diagram C: Two concentric circles next to a third detached circle. Diagram D: One large circle enclosing two separate circles. A) Diagram A B) Diagram B C) Diagram C D) Diagram D

Select the correct Venn diagram representing: Women, Mothers, and Engineers. Diagram A: One circle inside another, with a third circle intersecting both. Diagram B: Three completely separate circles. Diagram C: Three mutually intersecting circles. Diagram D: Two separate circles inside a larger third circle. A) Diagram A B) Diagram B C) Diagram C D) Diagram D

During heavy physical exercise, a sprinter's leg muscles undergo anaerobic respiration. Select the option that correctly identifies the substance produced in the muscle cells, the location of this pathway inside the cell, and the symptom it triggers. A) Ethanol; Mitochondria; High fever B) Carbon dioxide; Nucleus; Muscle spasms C) Lactic acid; Cytoplasm; Muscle cramps D) Pyruvate; Chloroplast; Joint swelling

An experimental drug destroys the Smooth Endoplasmic Reticulum (SER) in a line of mammalian liver cells. Which crucial physiological functions will these liver cells fail to execute? A) Cellular respiration and generation of adenosine triphosphate (ATP) B) Synthesis of lipids/steroid hormones and detoxification of drugs/poisons C) Transcription of messenger RNA from genomic DNA D) Sorting and modification of complex sugars into glycoproteins

A newly synthesized protein destined to be secreted outside the cell as an enzyme must travel through the cellular postal system. Select the correct, sequential pathway this protein takes from its origin to its final export.A) Golgi apparatus → Rough Endoplasmic Reticulum → Lysosome → Plasma membraneB) Rough Endoplasmic Reticulum → Golgi apparatus → Secretory vesicle → Plasma membraneC) Smooth Endoplasmic Reticulum → Ribosome → Nucleus→ Cell wallD) Nucleoplasm→ Mitochondria→ Vacuole → Exocytosis

Which HTML5 element is used to embed vector-based graphics directly into a webpage, allowing them to scale perfectly without losing quality? A) <canvas> B) <svg> C) <vector> D) <picture>

Which attribute must be added to the <video> or <audio> tag to display interactive buttons like Play, Pause, and Volume? A) buttons B) controls C) play D) interface