Vocabulary Quiz #3

What is the definition of an Atom?

• a substance that speeds up a chemical reaction without being consumed

• basic building block of matter

• a group of atoms bonded together

• a substance made up of two or more elements chemically combined

Tags

NGSS.MS-PS1-1

What the definition of Atomic Mass?

• chemical substance whose atoms have the same number of protons

• the number of protons in the nucleus of an atom

• the mass in grams of one mole of substance

• total mass of an atom

What is the definition of Atomic Number?

• the central core of an atom containing protons and neutrons

• the number of protons in the nucleus of an atom

• an atom or molecule with a net electric charge due to loss or gain of one or more electrons

• a substance composed of only one type of atom, defined by its atomic number

What is the definition of an Axis?

• an invisible line around which an object rotates, or spins

• a fracture or zone of fractures between two blocks of rock

• the very hot, very dense center of our planet

• a vertical line on a graph that measures the distance of a point from the x-axis

What is the definition of Balanced Force?

• anything that has mass, takes up space, and can be weighed

• those that are equal in magnitude but opposite in direction

• when balanced forces act on an object, the object's acceleration is zero

• strength or energy as an attribute of physical action or movement

What is the definition of Chemical Formula?

• the symbolic representation of a chemical reaction in the form of symbols and chemical formulas

• a number placed in front of a chemical symbol or formula that shows how many atoms or molecules of the substance are involved in the reaction.

• a thing that is composed of two or more separate elements; a mixture

• a mathematical relationship or rule expressed in symbols

What is the definition of a Coefficient?

• written directly in front of the chemical formula

• a number placed in front of a chemical symbol or formula that shows how many atoms or molecules of the substance are involved in the reaction

• the capacity to do work, or the ability to exert force to move an object

• chemical element with symbol H and atomic number 1.

Tags

NGSS.MS-PS1-5

What is the definition of a Compound?

• a substance formed by chemically combining two or more different elements in a fixed ratio

• the push or pull exerted between atoms, molecules, or ions

• a simple substance that cannot be broken down into smaller parts or changed into another substance

• the structure in a cell that contains the chromosomes

What is the definition of an Electron?

• A small particle with a negative charge that is found in all atom

• atoms of the same element that have the same number of protons (i.e., atomic number, "Z") but a different number of neutrons

• the structure in a cell that contains the chromosomes

• a subatomic particle with a positive electrical charge

Tags

NGSS.MS-PS2-3

What is the definition of Element?

• substance made up of atoms that all have the same number of protons 

• a fundamental part of a whole, or a substance that cannot be broken down into simpler parts

• energy can neither be created nor destroyed

• basic part of a whole