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Topic Menu Atmosphere Earth's Atmosphere Atmospheric Pressure Pressure in the Oceans Atomic Accelerators Atom: Simple Structure Atomic nucleus Atomic Spectra Mass Difference Nuclear Binding Energy Particle Accelerators Photons Photoelectric Effect Radioactivity Rutherford's Model of the Atom Photoelectric Effect Wave-particle duality Electricity Electricity Menu Energy Acid Rain Electromagnetic Energy Future Energy Sources Global Warming Human Energy Intake Ozone Depletion Payback Time Power Stations Sankey Diagrams Sources of Energy Types of Energy Forces Center of Gravity (Mass) Circular Motion Density Dynamics Graphs: Velocity/Time and Displacement/Time Graphs Forces Floating and sinking Friction Gravity Hooke's Law Machines Mass Moments Momentum Newton's Laws of Motion Power Pressure Projectiles Stability Stopping Distances Terminal Velocity Vectors and Scalars Weight Work done by a force Young's Modulus Y11 - Discussion topics - Driving Geophysics Earth's Atmosphere Acid Rain Atmospheric Pressure Plate Techtonics Ozone Layer Depletion Pressure in the Oceans Richter Scale Seafloor Spreading Seismic Waves Structure of the Earth Tides Wegener Calorimetry Cavity Wall Insulation Conduction Convection Double Glazing Expansion Heat Latent Heat Experiment Specific Heat Capacity Pressure Cooker Cooking Radiation Temperature Scales - Dalek Problem Thermometers U-Values Light INDEX Camera Colour Diffraction Dispersion Drawing optical diagrams Electromagnetic Spectrum Eye Fibre Optics Interference L.A.S.E.R.s Lenses Mirror - concave Mirror - convex Mirror - plane Prisms - to divert light Prisms - to disperse light Polarization Refraction Reflection Shadows Straight path for light Total internal reflection Magnetism Magnetism - basics Electromagnetism Electromagnetism Experiment The Earth's magnetic field Levitation Electromagnetic Induction Transformers Magnetic Flux - Higher Level Motor Effect Motor Effect - Higher Level Matter Atom - simple structure Density Kinetic Theory of Gases - Higher level Boyle's Law Charles' Law Ideal Gas Mass Metals - structure and properties Particle Theory Semiconductors Wave Particle Duality Medical Physics Action Potential/option> CT Scanner Ear - Structure Ear - loudness perception Ear - dB and dBA scales Ear - acoustic attenuation L.A.S.E.R.s/option> MRI Nuclear Medicine Applications Particle Accelerator Appications - Cyclotron Optics: Eye and sight correction Optics: Lenses Optics: Ray diagrams Optical Fibres Particle Accelerator Appications - LINAC Ultrasound - basics Ultrasound - higher Level Video Link X-Rays Nuclear Atom: Simple Structure Atomic nucleus Atomic Spectra Mass Difference Nuclear Binding EnergyNuclear Power Particle Accelerators Photons Photoelectric Effect Radioactivity Rutherford's Model of the Atom Photoelectric Effect Wave-particle duality Particles Atom - simple structure Density Kinetic Theory of Gases - Higher level Boyle's Law Charles' Law Ideal Gas Mass Metals - structure and properties Particle PhysicsParticle Theory Semiconductors Wave Particle Duality Radioactivity Radioactivity INDEX - Basic Level Topics Radioactivity INDEX - Higher Level Radioactivity - Glossary of terms Radioactivity - discussion on nuclear fallout Ear - Structure Ear - loudness perception Ear - dB and dBA scales Ear - acoustic attenuation Sound Sound Ultrasound - basics Ultrasound - higher Level Space Big Bang Theory Black Holes Comets and Asteroids Constellations Cosmic Rays Earth: Day, Year & Seasons Eclipses Extraterrestrial Life Light Year Phases of the Moon Red Shift Satellites Solar System Stars Telescopes Universe GAME LINK - Launch a spaceship Temperature Cavity Wall Insulation Conduction Convection Double Glazing Expansion Heat Latent Heat Experiment Specific Heat Capacity Pressure Cooker Cooking Radiation Temperature Scales - Dalek Problem Thermometers U-Values Units Units - learning aids Units - rules Units - symbols Units - S.I. Prefixes Waves Analogue and Digital Coherence Damping of vibrations Diffraction Electromagnetic Waves Interference Oscilloscopes Polarisation Reflection Refraction Resonance SHM - Simple Harmonic Motion Sound Standing Waves Superposition Waves - basic
If my mass was 65 kg. This would be true wherever I went in the universe. Just because I travelled to the moon wouldn't make the number of atoms and molecules in my body change.. it would be the same.. just as my dress-size would! My mass would remain at 65 kg.
Mass Always Stays the Same!!
How tightly packed the mass is within a given space is called the density
Click here to read Hannah's 'Mass and Weight Rap'
Mass is a measure of inertia. The more mass an object has the more difficult it is to make it accelerate. See Newton's first law.