Physics
What is the force that opposes motion between two surfaces in contact?
Answer: Friction.
What is the chemical symbol for water?
Answer: H₂O.
What is the basic unit of life?
Answer: The cell.
What layer of Earth lies just below the crust?
Answer: The mantle.
What is the closest planet to the Sun?
Answer: Mercury.
Who is known as the "Father of Modern Physics"?
Answer: Albert Einstein.
What is the pH level of a neutral substance?
Answer: 7.
What process do plants use to convert sunlight into food?
Answer: Photosynthesis.
What type of rock is formed from cooling magma or lava?
Answer: Igneous rock.
What galaxy is Earth located in?
Answer: The Milky Way.
What is the formula for calculating force?
Answer: Force = Mass × Acceleration (F = ma).
What type of bond occurs when atoms share electrons?
Answer: Covalent bond.
Which organ in the human body is responsible for pumping blood?
Answer: The heart.
What is the name of the theory that explains the movement of Earth's tectonic plates?
Answer: Plate tectonics.
What is the name of the largest planet in our solar system?
Answer: Jupiter.
What is the unit of electrical resistance?
Answer: Ohm.
What is the atomic number of carbon?
Answer: 6.
What is the molecule that carries genetic information in all living organisms?
Answer: DNA (Deoxyribonucleic Acid).
What scale is used to measure the magnitude of earthquakes?
Answer: The Richter scale.
What is the term for a star that has collapsed under its own gravity?
Answer: Black hole.
What does the law of conservation of energy state?
Energy cannot be created or destroyed, only transferred or converted.
What is the law that states that in a chemical reaction, matter is neither created nor destroyed?
Answer: The Law of Conservation of Mass.
What is the name of the process by which cells divide?
Answer: Mitosis.
Which gas is most abundant in Earth’s atmosphere?
Answer: Nitrogen (78%).
What is the name of the spacecraft that first landed humans on the Moon?
Answer: Apollo 11.