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1st Semester Vocab.
| Question | Answer |
|---|---|
| This tool measures the mass of objects. | Triple-Beam Balance |
| The most important lab safety rule is to... | Listen to your teacher and follow all instructions. |
| How to properly smell anything in a lab. | Wafting |
| This is used to grow and view microorganisms. | Petri Dish |
| The amount of space an object takes up. | Volume |
| A subatomic particle that has a negative charge is called a... | Electron |
| The term used to describe when elements in 2 compounds switch places with each other. | Double-Replacement |
| What is a way of describing chemical reactions? | Chemical Equations |
| One indicator of ... is a solid precipitate being formed. | Chemical Change |
| Elements in a vertical column of the periodic table that have the same number of valence electrons. | Group |
| When the total of all forces = 0 and when the object's motion does not change. | Balanced Force |
| The acceleration of an object by a force is proportional to the mass and acceleration of the object. | Newton's 2nd Law |
| What is the formula to find time? | T=D/S |
| If an acceleration graph shows a horizontal line, what does the line mean? | Constant Speed |
| If a speed graph shows a horizontal line, what does it mean? | No Motion |
| A ray in the Electromagnetic Spectrum that the smallest wavelength. It is produced through nuclear fusion. | Gamma Rays |
| The resistance of an object to a change in its state of motion. | Inertia |
| The difference between the frequency of a wave measured at its source, and as measured by an observer in relative motion. | Doppler Effect |
| A shift in angle that occurs when a nearby object is seen against a distant backdrop from two different perspectives. | Parallax |
| A very large group of stars and cosmic dust. | Galaxy |
| What "powers" stars deep in the core? | Nuclear Fusion |
| The measure of a star's luminosity. | Magnitude |
| How bright a star really is. | Absolute Magnitude |
| A small body of ice, rock and metal that is packeed together. It has a "tail". | Comet |
| The dense core of a collapsed supergiant, made only of neutrons. | Neutron star |
| A theory that states that the universe began with a huge explosion. It says that the universe will keep on expanding. | Big Bang Theory |
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n1005061
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