Science

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  1. 3. Gravity, or gravitation, is a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light—are attracted to one another. On Earth, gravity gives weight to physical objects, and the Moon's gravity causes the tides of the oceans.
  2. 4. - is like a type of momentum that is like energy
  3. 6. - a practical exhibition and explanation of how something works or is performed.
  4. 9. the word constant can have multiple meanings. As an adjective, it refers to non-variance; as a noun, it has two different meanings: A fixed and well-defined number or other non-changing mathematical object.
  5. 11. is the best for developing the theory of relativity.
  6. 12. - Archimedes of Syracuse was a Greek mathematician, physicist, engineer, astronomer, and inventor. Although few details of his life are known, he is regarded as one of the leading scientists in classical antiquity.
  7. 13. pendulum- Mechanical engineering is an engineering branch that combines engineering physics and mathematics principles with materials science to design, analyze, manufacture, and maintain mechanical systems. It is one of the oldest and broadest of the engineering branches.
  8. 15. In science and engineering, the weight of an object is the force acting on the object due to gravity. Some standard textbooks define weight as a vector quantity, the gravitational force acting on the object. Others define weight as a scalar quantity, the magnitude of the gravitational force.
  9. 16. Water is an inorganic, transparent, tasteless, odorless, and nearly colorless chemical substance, which is the main constituent of Earth's hydrosphere and the fluids of all known living organisms. It is vital for all known forms of life, even though it provides no calories or organic nutrients.
  10. 17. Inertia is the resistance of any physical object to any change in its velocity. This includes changes to the object's speed, or direction of motion. An aspect of this property is the tendency of objects to keep moving in a straight line at a constant speed when no forces act upon them.
  11. 18. bang - The Big Bang theory is the prevailing cosmological model explaining the existence of the observable universe from the earliest known periods through its subsequent large-scale evolution.
  12. 19. "he vowed to take tougher action against persistent offenders"
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  1. 1. In mathematics, two sequences of numbers, often experimental data, are proportional or directly proportional if their corresponding elements have a constant ratio, which is called the coefficient of proportionality or proportionality constant.
  2. 2. such allergic reactions as hay fever and asthma"
  3. 5. It is also a measure of the body's inertia, the resistance to acceleration (change of velocity) when a net force is applied. An object's mass also determines the strength of its gravitational attraction to other bodies.
  4. 7. - the rate of change of the velocity of an object with respect to time.
  5. 8. law- Scientific laws or laws of science are statements, based on repeated experiments or observations, that describe or predict a range of natural phenomena. The term law has diverse usage in many cases across all fields of natural science.
  6. 10. measurements are given in metric form"
  7. 13. of or based on the meter as a unit of length; relating to the metric system.
  8. 14. Newton’s First law of motion states that an object will not change its motion unless a force acts on it.