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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 |