Education
Science
- Physics
  - Mechanics
    - Motion 53
    - Kinematics 64
    - Dynamics 34
    - Forces 26
    - Work 3
    - Energy 106
    - Power 6
    - Momentum 20
    - Circular Motion 11
    - Gravitation 9
    - Oscillation 10
    - Friction 7
    - Elasticity 3
    - Fluid Statics 4
    - Fluid Dynamics 2
  - Thermodynamics
    - Temperature 2
    - Heat 9
    - Thermal Expansion 5
    - Heat Transfer 22
    - Kinetic Theory 2
    - Gas Laws 6
    - Entropy 1
    - Heat Engine 1
  - Waves & Oscillations
    - Wave Motion 2
    - Wave Types 1
    - Wave Properties 2
    - Sound Waves 50
    - Light Waves 2
    - Interference 1
    - Diffraction 2
    - Reflection 5
    - Resonance 1
    - Harmonics 2
  - Optics
    - Optics Reflection 1
    - Lenses 5
    - Mirrors 5
    - Optics Interference 1
    - Optics Polarization 1
    - Optical Instruments 2
  - Electricity & Magnetism
    - Electric Charge 1
    - Electric Field 5
    - Electric Potential 1
    - Capacitance 3
    - Current Electricity 8
    - Ohm Law 2
    - Resistivity 1
    - Electric Power 50
    - Magnetic Field 35
    - Electromagnetic Induction 7
    - Alternating Current 3
    - Electromagnetic Waves 17
    - Circuit Theory 18
    - Electrostatics 11
  - Modern Physics
    - Atomic Physics 34
    - Quantum Theory 9
    - Particle Physics 13
    - Wave Mechanics 52
    - X Rays 9
    - Radioactivity 2
    - Spectroscopy 1
  - Nuclear Physics
    - Nuclear Radioactivity 1
  - Quantum Physics
    - Superposition 1
    - Uncertainty 1
    - Atomic Models 5
    - Photoelectric Effect 3
    - Quantum Entanglement 1
  - Relativity
    - Special Theory 1
    - Time Dilation 1
  - Astrophysics
    - Astrophysics Black Holes 8
    - Cosmic Rays 1
    - Space Exploration 2
    - Planetary Science 16
    - Gamma Ray Astronomy 1
    - Gravitational Waves 2
  - Fluid Mechanics
    - Fluid Properties 1
    - Fluid Pressure 1
    - Hydraulic Machines 5
  - Measurement & Units
    - Significant Figures 1
    - Scientific Notation 2
    - Dimensional Analysis 1
    - Accuracy 4
    - Precision 4
    - Error Analysis 2
    - Measuring Instruments 3
- Chemistry
  - Physical Chemistry
    - States of Matter 107
    - Physical Gas Laws 14
    - Chemical Equilibrium 16
    - Ionic Equilibrium 3
    - Solutions 61
    - Colligative Properties 4
    - Chemical Kinetics 22
    - Electrochemistry 22
    - Surface Chemistry 4
    - Physical Quantum Chemistry 3
    - Physical Spectroscopy 4
  - Inorganic Chemistry
    - Periodic Table 77
    - Chemical Bonding 92
    - Coordination Compounds 8
    - Metallurgy 6
    - s Block Elements 12
    - p Block Elements 1
    - f Block Elements 2
    - Hydrogen 1
    - Halogens 5
    - Noble Gases 4
    - Acids & Bases 53
    - Salt Analysis 6
  - Organic Chemistry
    - Organic Compounds Classification 6
    - Structural Isomerism 2
    - Nomenclature 15
    - Hydrocarbons 13
    - Alcohols 3
    - Aldehydes 2
    - Carboxylic Acids 2
    - Amines 2
    - Organic Biomolecules 1
    - Polymers 5
    - Organic Reactions 9
  - Analytical Chemistry
    - Qualitative Analysis 3
    - Quantitative Analysis 2
    - Titrations 1
    - Chromatography 2
    - Separation Techniques 9
  - Biochemistry
    - Biomolecules 13
    - Bio Carbohydrates 14
    - Proteins 26
    - Enzymes 4
    - Lipids 14
    - Metabolism 40
    - Bioenergetics 7
    - Vitamins 5
    - Hormones 1
    - Cell Signaling 4
  - Environmental Chemistry
    - Air Pollution 4
    - Soil Pollution 1
    - Waste Management 2
    - Toxicology 8
  - Industrial Chemistry
    - Pharmaceuticals 2
    - Food Chemistry 6
    - Industrial Metallurgy 6
    - Detergents 1
  - Nuclear Chemistry
    - Chemistry Radioactivity 7
    - Chemistry Nuclear Reactions 1
    - Nuclear Energy 2
    - Nuclear Safety 38
  - Polymer Chemistry
  - Theoretical Chemistry
    - Quantum Chemistry 2
    - Molecular Modeling 16
    - Computational Chemistry 1
    - Chemical Thermodynamics 41
    - Reaction Dynamics 81
    - Electronic Structure 100
    - Molecular Dynamics 19
  - Medicinal Chemistry
    - Pharmacokinetics 1
    - Drug Metabolism 1
  - Green Chemistry
  - Materials Chemistry
    - Crystal Structure 1
    - Band Theory 1
    - Nanomaterials 5
    - Biomaterials 2
    - Corrosion 1
    - Alloys 1
- Biology
  - Cell Biology
    - Cell Theory 8
    - Prokaryotic Cells 4
    - Cell Organelles 11
    - Cell Membrane 24
    - Cytoplasm 1
    - Nucleus 1
    - Golgi Apparatus 5
    - Cell Division 32
    - Cell Cycle 18
    - Transport Mechanisms 28
    - Cell Communication 1
  - Genetics
    - DNA Structure 1
    - Gene Expression 7
    - Mendelian Inheritance 2
    - Non Mendelian Inheritance 1
    - Genetic Disorders 2
    - Genetic Mapping 1
    - Genetic Engineering 3
    - Genomics 1
    - Epigenetics 1
  - Evolution
    - Origin of Life 9
    - Natural Selection 3
    - Variation 2
    - Adaptation 5
    - Speciation 1
    - Comparative Anatomy 12
    - Molecular Evidence 8
    - Human Evolution 4
  - Ecology
    - Ecosystem 35
    - Biomes 24
    - Population Ecology 11
    - Community Ecology 3
    - Food Chains 15
    - Food Webs 5
    - Ecological Energy Flow 5
    - Nutrient Cycles 13
    - Biodiversity 24
    - Ecological Conservation 46
    - Habitat 4
    - Succession 4
    - Ecological Adaptation 11
    - Human Impact 1
  - Human Anatomy & Physiology
    - Skeletal System 116
    - Muscular System 64
    - Nervous System 115
    - Endocrine System 47
    - Circulatory System 87
    - Respiratory System 42
    - Digestive System 43
    - Excretory System 10
    - Reproductive System 120
    - Immune System 11
    - Integumentary System 20
    - Sensory Organs 54
  - Botany Plant Biology
    - Plant Anatomy 38
    - Plant Morphology 4
    - Plant Physiology 68
    - Photosynthesis 52
    - Plant Reproduction 22
    - Plant Growth 2
    - Plant Taxonomy 43
    - Plant Ecology 18
    - Plant Pathology 6
    - Economic Botany 5
    - Seed Biology 2
    - Plant Genetics 1
    - Plant Adaptations 3
  - Zoology Animal Biology
    - Classification 38
    - Porifera 6
    - Cnidaria 6
    - Platyhelminthes 3
    - Nematoda 6
    - Annelida 7
    - Arthropoda 12
    - Mollusca 4
    - Echinodermata 6
    - Chordata 5
    - Fish 76
    - Amphibians 10
    - Reptiles 14
    - Birds 2
    - Mammals 106
    - Anatomy 17
    - Physiology 22
    - Reproduction 23
    - Development 6
    - Behavior 63
  - Microbiology
    - Bacteriology 33
    - Virology 33
    - Mycology 16
    - Parasitology 53
    - Microbial Genetics 2
    - Microbial Ecology 11
    - Pathogenic Microbiology 18
    - Food Microbiology 4
    - Industrial Microbiology 1
    - Environmental Microbiology 2
  - Biotechnology
    - Bio Genetic Engineering 3
    - Recombinant DNA 1
    - Stem Cells 4
    - Bioreactors 2
    - Bioinformatics 2
    - GMOs 4
    - Proteomics 1
    - Metabolomics 1
  - Molecular Biology
    - Biological Biomolecules 8
    - Carbohydrates 4
    - Biochemical Lipids 9
    - Bio Proteins 2
    - Bio Enzymes 21
    - Bio Nucleic Acids 2
    - Biochemical Vitamins 5
    - Bio Metabolism 60
    - Cellular Respiration 18
    - Nitrogen Metabolism 1
    - Bio Hormones 32
  - Immunology
    - Lymphatic System 3
    - B Cells 1
    - Cytokines 1
    - Vaccination 5
    - Hypersensitivity 1
  - Developmental Biology
    - Fertilization 9
    - Gastrulation 1
    - Organogenesis 4
    - Growth 1
    - Aging 2
- Earth & Space Science
  - Geology
    - Minerals 32
    - Rocks 27
    - Geological Rock Cycle 17
    - Plate Tectonics 43
    - Geological Volcanoes 25
    - Weathering 16
    - Erosion 11
    - Soil 3
    - Fossils 2
    - Geological Time 6
    - Geomorphology 12
    - Natural Resources 4
  - Meteorology
    - Metrological Atmosphere 3
    - Clouds 1
    - Air Pressure 5
    - Weather Forecasting 5
  - Oceanography
    - Ocean Basins 1
    - Marine Life 47
    - Coral Reefs 2
    - Marine Resources 1
  - Environmental Geoscience
    - Environmental Climate Change 1
    - Natural Hazards 7
    - Pollution 8
    - Environmental Impact 3
    - Sustainability 7
    - Conservation 5
  - Paleontology
    - Fossilization 5
    - Stratigraphy 2
    - Evolutionary Trends 1
    - Vertebrate Fossils 1
    - Invertebrate Fossils 1
    - Micropaleontology 1
  - Climate Science
    - Climate Zones 5
    - Atmospheric Circulation 27
    - Ocean Currents 1
    - Climate Change 1
    - Climatorial Carbon Cycle 1
    - Water Cycle 4
  - Hydrology
    - Hydro Water Cycle 4
    - Infiltration 5
    - River Systems 1
    - Lakes 5
    - Wetlands 5
    - Water Quality 7
    - Water Management 7
  - Natural Disasters
    - Earthquakes 1
    - Tsunamis 1
    - Cyclones 5
    - Landslides 1
    - Heatwaves 1
  - Earth Systems & Cycles
    - Atmosphere 2
    - Carbon Cycle 5
  - Soil Science
    - Soil Biology 2
- Astronomy
  - Observational Astronomy
    - History of Astronomy 5
    - Telescopes 5
    - Optical Astronomy 5
    - Radio Astronomy 5
    - Infrared Astronomy 1
    - Ultraviolet Astronomy 5
    - X ray Astronomy 5
    - Astro Gamma Ray 5
    - Astronomical Spectroscopy 5
    - Photometry 5
    - Astrometry 5
  - Solar System
    - Sun 5
    - Mercury 2
    - Venus 1
    - Earth 3
    - Moon 7
    - Mars 3
    - Jupiter 5
    - Saturn 5
    - Uranus 5
    - Neptune 5
    - Dwarf Planets 3
    - Asteroids 8
    - Comets 2
    - Meteoroids 5
    - Kuiper Belt 5
    - Oort Cloud 5
  - Stars & Stellar Evolution
    - Star Formation 5
    - Main Sequence 5
    - Red Giants 1
    - White Dwarfs 5
    - Neutron Stars Evolution 5
    - Black Holes 5
    - Supernovae 5
    - Stellar Nucleosynthesis 5
    - Star Clusters 5
    - Variable Stars 1
  - Galaxies
    - Galaxy Types 5
    - Milky Way 5
    - Andromeda 5
    - Dwarf Galaxies 5
    - Galaxy Star Clusters 5
    - Nebulae 5
    - Active Galaxies 1
    - Quasars 5
    - Galaxy Black Holes 5
    - Dark Matter 5
  - Cosmology
    - Big Bang 1
    - Cosmic Inflation 5
    - Cosmo Dark Matter 5
    - Dark Energy 5
    - Cosmic Microwave 1
    - Large Scale 5
    - Galaxy Formation 5
  - Exoplanets
    - Detection Methods 5
    - Transit Method 4
    - Radial Velocity 5
    - Direct Imaging 4
    - Microlensing 5
    - Planet Types 5
    - Habitable Zone 5
    - Atmospheres 4
    - Orbital Properties 5
    - Notable Exoplanets 5
  - Astrobiology
    - Extremophiles 5
    - Habitable Zones 5
    - Exoplanet Life 5
    - Biosignatures 3
    - Mars Life 5
  - Astronomical Instruments
    - Space Telescope 1
    - Planetarium 5
  - Space Exploration & Missions
    - Satellites 2
    - Space Probes 1
    - Space Telescopes 1
    - Manned Missions 5
    - Lunar Missions 1
    - Mars Missions 5
    - Space Stations 5
  - Celestial Mechanics & Orbits
    - Orbital Motion 1
    - Newton Laws 1
    - Eclipses 3
    - Retrograde Motion 5
Math
English
History
Geography
Computer Science
Civics
Economics
Exams & Certifications

9th Grade Dark Matter Quizzes, Questions & Answers

9th Grade

Top Trending Dark Matter Quizzes

Spinning Mystery: Galaxy Rotation Curves Quiz

Investigate why the outer stars of galaxies move much faster than they should. This Galaxy Rotation Curves Quiz explores the mystery of missing mass. Learn how Vera Rubin's observations of orbital velocities provided the...

Questions: 20 | Attempts: 10 | Last updated: Feb 20, 2026

Sample Question 1
What is the primary anomaly observed in galaxy rotation curves compared to Keplerian predictions?

Stars slow down at the edges

Stars maintain constant speed at the edges

Stars stop moving at the edges

Stars move faster near the center only

Sample Question 2
Visible matter alone is sufficient to explain the gravitational pull required for the observed rotation speeds of galaxies.

True

False

Sample Question 3
In a typical rotation curve graph, what is plotted on the horizontal (x) axis?

Orbital Velocity

Light Intensity

Distance from the center

Mass of the star

9th Grade Dark Matter Quizzes, Questions & Answers

Top Trending Dark Matter Quizzes

Recent Dark Matter Quizzes