Science Multi Choice Questions Single Answer Questions Physics Chemistry Botany Zoology Astronomy Meteorology Science Physics Quiz 1 / 20 According to the first law of thermodynamics, what is the relationship between the heat added to a system, the change in internal energy, and the work done by the system? Q = ΔU - W Q = ΔU + W Q = ΔU × W Q = ΔU / W 2 / 20 Which of the following electromagnetic waves has the longest wavelength? Infrared Ultraviolet Microwave Radio waves 3 / 20 According to the law of reflection, the angle of incidence is equal to the angle of Refraction Diffraction Incandescence Reflection 4 / 20 Which of the following is a measure of the amount of matter in an object and is commonly measured in kilograms (kg)? Weight Volume Mass Density 5 / 20 What is the formula for calculating the work done (W) by a force acting on an object? W = Fd W = F/a W = ma W = QV 6 / 20 Which type of lens converges light rays to a single point and is thicker in the center than at the edges? Concave lens Convex lens Diverging lens Plano-concave lens 7 / 20 In nuclear physics, what is the process by which a heavy nucleus splits into two or more smaller nuclei, releasing a large amount of energy? Fusion Fission Alpha decay Beta decay 8 / 20 Which law states that the total pressure exerted by a confined fluid is transmitted undiminished in all directions? Boyle's Law Archimedes' Principle Pascal's Law Newton's Second Law 9 / 20 What is the SI unit of electric current? Volt Ampere Ohm Coulomb 10 / 20 What is the conservation law that states that the total electric charge in an isolated system remains constant? Law of Conservation of Energy Law of Conservation of Momentum Law of Conservation of Charge Law of Conservation of Mass 11 / 20 According to Ohm's law, the relationship between voltage (V), current (I), and resistance (R) is given by V = IR I = VR R = VI V = I/R 12 / 20 In the electromagnetic spectrum, which type of electromagnetic wave has the shortest wavelength? Radio waves Microwaves X-rays Gamma rays 13 / 20 What is the acceleration due to gravity on the surface of the Earth? 9.8 m/s² 6.67 × 10⁻¹¹ Nm²/kg² 3.00 × 10⁸ m/s² 1.62 m/s² 14 / 20 Which of the following is a fundamental particle found in the nucleus of an atom? Proton Electron Neutron 15 / 20 Which of the following is a fundamental particle found in the nucleus of an atom? Proton Electron Neutron Photon 16 / 20 What is the formula for calculating kinetic energy (KE)? KE = mv KE = 0.5mv² KE = mgh KE = Fd 17 / 20 The phenomenon of light bending as it passes through different media is known as: Reflection Refraction Diffraction Interference 18 / 20 According to Newton's first law of motion, an object at rest tends to stay at rest, and an object in motion tends to stay in motion unless acted upon by: Gravitational force Frictional force Magnetic force Electrostatic force 19 / 20 Which of the following is a vector quantity? Mass Temperature Speed Displacement 20 / 20 What is the SI unit of force? Newton Watt Joule Pascal Your score is The average score is 0% 0% Restart quiz Science Chemistry Quiz 1 / 19 What is the chemical symbol for iron? I Fe Ir In 2 / 19 Which of the following is a greenhouse gas? Oxygen (O2) Nitrogen (N2) Carbon dioxide (CO2) Hydrogen (H2) 3 / 19 What is the process of converting a solid directly into a gas without passing through the liquid state called? Sublimation Condensation Evaporation Melting 4 / 19 Which of the following is a halogen? Sodium (Na) Fluorine (F) Calcium (Ca) Iron (Fe) 5 / 19 What is the smallest unit of an element that retains its chemical properties? Atom Molecule Ion Compound 6 / 19 Which gas is responsible for the green color in plants? Oxygen (O2) Nitrogen (N2) Carbon dioxide (CO2) Chlorophyll 7 / 19 What is the chemical formula for water? CO2 H2O O2 CH4 8 / 19 What is the pH value of a neutral solution? 0 7 14 1 9 / 19 Which of the following elements is a noble gas? Oxygen (O) Neon (Ne) Sodium (Na) Chlorine (Cl 10 / 19 What is the chemical symbol for gold? Au Ag Fe Hg 11 / 19 What is the common name for sodium bicarbonate? Baking soda Table salt Epsom salt Borax 12 / 19 In a chemical reaction, the mass of the products is equal to the mass of the: Reactants Catalyst Solvent None of the above 13 / 19 Which gas is responsible for the greenhouse effect? Oxygen Carbon dioxide Nitrogen Hydrogen 14 / 19 What is the main component of natural gas? Methane Ethane Propane Butane 15 / 19 What is the chemical formula for methane? CH4 CO2 NH3 H2O 16 / 19 Which type of bond involves the sharing of electrons between atoms? Ionic Covalent Metallic Polar 17 / 19 Which of the following is a noble gas? Oxygen Neon Chlorine Sulfur 18 / 19 What is the pH of a solution with a hydrogen ion concentration of 1 x 10^-9 M? 9 7 5 3 19 / 19 Which subatomic particle is responsible for the chemical properties of an element? Proton Neutron Electron Nucleus Your score is The average score is 0% 0% Restart quiz Science Botany Quiz 1 / 20 Which of the following is a monocotyledonous plant? Oak tree Sunflower Rose bush Grass 2 / 20 In which plant cell organelle does photosynthesis take place? Nucleus Chloroplast Mitochondrion Endoplasmic reticulum 3 / 20 What is the primary purpose of the phloem in plants? Water transport Food transport Structural support Gas exchange 4 / 20 The male reproductive part of a flower is called: Stamen Pistil Sepal Petal 5 / 20 What is the function of xylem in plants? Transpiration Nutrient transport Photosynthesis Water transport 6 / 20 The process of conversion of atmospheric nitrogen into a form that plants can use is known as: Denitrification Nitrogen fixation Nitrate assimilation Nitrification 7 / 20 Which of the following is not a type of plant tissue? Epidermal tissue Dermal tissue Neural tissue Ground tissue 8 / 20 What is the main function of the stomata in plant leaves? Gas exchange Water absorption Photosynthesis Nutrient storage 9 / 20 Which part of the plant is responsible for the process of transpiration? Roots Leaves Stem Flowers 10 / 20 What is the primary function of chlorophyll in plants? Water absorption Nutrient transport Photosynthesis Respiration 11 / 20 The opening and closing of stomata are primarily regulated by: Light intensity Temperature Hormones Water availability 12 / 20 Which of the following is a non-vascular plant? Fern Moss Pine tree Sunflower 13 / 20 What is the primary function of the cuticle in plant leaves? Gas exchange Protection against pathogens Water retention Photosynthesis 14 / 20 The term "rhizome" is associated with which type of plant structure? Root Stem Leaf Flower 15 / 20 Which of the following is a function of the plant vascular cambium? Water transport Food storage Secondary growth Gas exchange 16 / 20 The process of shedding leaves from a plant is known as: Transpiration Abscission Photosynthesis Respiration 17 / 20 What is the primary purpose of the root hairs in plants? Water absorption Nutrient storage Photosynthesis Gas exchange 18 / 20 The term "perennial" in botany refers to plants that: Complete their life cycle in one year Live for two years Live for more than two years Are only found in tropical regions 19 / 20 Which of the following is a type of asexual reproduction in plants? Pollination Fertilization Budding Meiosis 20 / 20 What is the function of the plant hormone auxin? Flowering Cell elongation and growth Photosynthesis Seed germination Your score is The average score is 0% 0% Restart quiz Science Zoology Quiz 1 / 20 What is the smallest unit of life in animals? Atom Cell Molecule Organ 2 / 20 Which class of animals includes animals like snakes, lizards, and turtles? Amphibia Reptilia Mammalia Aves 3 / 20 What is the primary function of the nervous system in animals? Reproduction Coordination and control Digestion Circulation 4 / 20 Which of the following is a characteristic feature of mammals? Cold-blooded Lay eggs Hair or fur Gills for respiration 5 / 20 What is the process by which animals shed their exoskeleton to allow for growth? Moulting Metamorphosis Fertilization Germination 6 / 20 In which habitat would you find animals adapted to burrowing, such as meerkats? Desert Rainforest Grassland Tundra 7 / 20 Which organ is responsible for producing insulin in animals? Liver Kidneys Pancreas Stomach 8 / 20 What is the largest big cat species in the world? Leopard Tiger Cheetah Lion 9 / 20 Which of the following is a cold-blooded vertebrate? Dolphin Penguin Frog Bat 10 / 20 What is the primary function of the liver in animals? Oxygen transport Digestion of proteins Detoxification and metabolism Pumping blood 11 / 20 What is the scientific name for the study of birds? Herpetology Ornithology Entomology Ichthyology 12 / 20 Which of the following is a marsupial? Kangaroo Bear Wolf Tiger 13 / 20 What is the main function of the respiratory system in animals? Pumping blood Breaking down food Exchanging gases Maintaining body temperature 14 / 20 What is the process by which insects transform from larvae to adults? Metamorphosis Regeneration Osmosis Fission 15 / 20 Which phylum do jellyfish belong to? Cnidaria Porifera Platyhelminthes Nematoda 16 / 20 What is the primary function of the red blood cells in animals? Transportation of oxygen Digestion of food Protection against pathogens Regulation of body temperature 17 / 20 In which class of animals would you find creatures with exoskeletons and jointed legs? Mammalia Reptilia Arachnida Amphibia 18 / 20 What is the largest bird in the world? Ostrich Penguin Albatross Bald eagle 19 / 20 Which of the following is not a type of symmetry found in animals? Radial symmetry Bilateral symmetry Asymmetry Cubic symmetry 20 / 20 What is the largest mammal on Earth? Elephant Blue whale Giraffe Polar bear Your score is The average score is 0% 0% Restart quiz Science Astronomy Quiz 1 / 20 What is the term for the point in a planet's orbit where it is closest to the Sun? Aphelion Perihelion Zenith Nadir 2 / 20 What is the name of the first artificial satellite launched into Earth's orbit? Explorer Sputnik 1 Vanguard 1 Hubble Space Telescope 3 / 20 What is the Great Red Spot on Jupiter? A giant storm A mountain range An ice cap . A desert region 4 / 20 Which moon of Jupiter is known for its highly volcanic and geologically active surface? Europa Ganymede Io Callisto 5 / 20 What is the name of the process by which a star, more massive than our Sun, ends its life in a massive explosion? Fusion Fission Supernova Black hole formation 6 / 20 Which famous comet, visible from Earth, has an orbital period of about 76 years? Halley's Comet Hale-Bopp Comet Encke's Comet ISON Comet 7 / 20 What causes the phenomenon known as a solar eclipse? Earth passing between the Sun and the Moon Moon passing between the Sun and Earth Alignment of Mars, Earth, and the Sun Rotation of the Earth on its axis 8 / 20 What is the Kuiper Belt? A region of icy bodies beyond Neptune A group of rocky asteroids between Mars and Jupiter The outermost layer of the Sun A cluster of galaxies 9 / 20 Which planet is often referred to as the "Blue Planet" due to its predominantly blue appearance from space? Earth Neptune Uranus Mars 10 / 20 What is the name of the process by which a star converts hydrogen into helium, releasing a tremendous amount of energy? Fusion Fission Convection Radiation 11 / 20 Which space telescope has provided valuable images and data about the universe since its launch in 1990? Hubble Space Telescope Chandra X-ray Observatory Kepler Space Telescope d. Spitzer Space Telescope 12 / 20 What is the name of the imaginary line that divides the Earth into the Northern and Southern Hemispheres? Equator Tropic of Cancer Tropic of Capricorn Prime Meridian 13 / 20 What is a supernova? A black hole An exploding star A comet A planet 14 / 20 Which planet is known as the "Morning Star" or "Evening Star" depending on its visibility? Venus Mercury Mars Jupiter 15 / 20 What is the name of the largest moon of Saturn? Europa Titan Ganymede Callisto 16 / 20 What is a light-year? A unit of time A unit of distance A unit of brightness A unit of temperature 17 / 20 What causes the different phases of the Moon? Earth's rotation Moon's rotation Moon's orbit around Earth Earth's orbit around the Sun 18 / 20 Which celestial body is also known as the Red Planet? Venus Mars Jupiter Saturn 19 / 20 What is the name of the closest galaxy to the Milky Way? Andromeda Triangulum Whirlpool Sombrero 20 / 20 What is the largest planet in our solar system? Earth Jupiter Mars Venus Your score is The average score is 0% 0% Restart quiz Science Meteorology Quiz 1 / 20 What is the primary source of energy for Earth's weather system? Geothermal energy Nuclear energy Solar energy Wind energy 2 / 20 The lapse rate refers to the rate at which: Atmospheric pressure decreases with altitude Temperature changes with altitude Humidity changes with temperature Wind speed increases with altitude 3 / 20 What causes the phenomenon known as the Northern Lights (Aurora Borealis)? Earth's magnetic field Solar wind interacting with Earth's atmosphere Plate tectonics Volcanic activity 4 / 20 What is the name of the scale used to measure the intensity of hurricanes? Richter scale Fujita scale Saffir-Simpson scale Beaufort scale 5 / 20 What is the process by which water vapor changes into liquid water? Sublimation Condensation Evaporation Transpiration 6 / 20 Which of the following is a greenhouse gas? Oxygen Nitrogen Carbon dioxide Helium 7 / 20 The Coriolis effect is responsible for Formation of tornadoes Ocean currents Earth's magnetic field Wind direction deflection 8 / 20 What instrument is commonly used to measure wind speed? Barometer Anemometer Hygrometer Pyranometer 9 / 20 Which layer of the Earth's atmosphere is closest to the surface? Mesosphere Troposphere Stratosphere Thermosphere 10 / 20 What is the primary unit of measurement for atmospheric pressure? Celsius Pascal Kilogram Knot 11 / 20 Which layer of the atmosphere is characterized by extremely high temperatures and contains a small concentration of gas molecules? Mesosphere Thermosphere Stratosphere Troposphere 12 / 20 What is the name of the phenomenon where warm ocean water contributes to the intensification of tropical storms and hurricanes? El Niño La Niña Monsoon Gulf Stream 13 / 20 What is the main greenhouse gas responsible for trapping heat in the Earth's atmosphere? Methane Nitrous oxide Water vapor Carbon dioxide 14 / 20 The boundary between two air masses with different temperatures and humidity is known as Cold front Warm front Occluded front Stationary front 15 / 20 Which of the following cloud types is associated with thunderstorms? Cirrus Cumulus Stratus Cumulonimbus 16 / 20 What is the name for the process by which a gas changes directly into a solid without passing through the liquid state? Condensation Deposition Sublimation Evaporation 17 / 20 The Beaufort scale is used to measure: Temperature Wind speed Humidity Atmospheric pressure 18 / 20 What instrument is used to measure relative humidity? Thermometer Barometer Hygrometer Anemometer 19 / 20 Which layer of the atmosphere contains the ozone layer? Troposphere Stratosphere Mesosphere Thermosphere 20 / 20 What is the name given to a large-scale weather system characterized by low pressure and heavy rainfall or thunderstorms? Cyclone Anticyclone Tornado Blizzard Your score is The average score is 0% 0% Restart quiz
