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Celestial bodies
Science
| Question | Answer |
|---|---|
| What is a star | A star is a luminous object made up of gas,luminous objects generate their own light |
| What is a planet | A planet is a celestial body that orbits a star,has a large enough mass to be spherical,has cleared the region around its orbit of other celestial bodies, |
| What do moons orbit | Moons orbit a planet or another celestial body that isnt a star |
| What are asteroids | Large lumps of rock and metal smaller than planets that orbits the sun |
| What are comets | Large lumps of ice and dust that orbit the sun |
| What is the solar system | A solar system consists of a star,and all objects that orbit it,e.g planets |
| What is a terrestrial planet | A terrestrial planet is made up of mostly rock and metals |
| What is a gas giant | A planet made up of gases and ice |
| What is gravity | A non contact force that pulls two objects towards eachother |
| What is mass | The amount of matter or particles in a object measured in kg |
| What is weight | The downward force of an object due to gravity,measured in newtons |
| What is a galaxy | A system of millions or billions of stars,planets,gas and dust |
| How do I calculate weight? | Weight= Mass(kg) x gravity (n/kg) |
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