What is a force that opposes the relative motion of two material surfaces in contact with one another?
100
Proton
What is a subatomic particle having a positive charge and which is found in the nucleus of an atom?
100
Entropy
What is a measure of randomness or disorder of a closed system?
100
Pulley
What is a type of simple machine; a circular lever, usually a wheel with a groove where a rope can be placed and used to change the direction of a force?
100
Variable
What is the event, condition, or factor that can be changed or controlled in order to study or test a hypothesis in a scientific experiment?
200
Gravitation
What is a force of attraction between two masses?
200
Energy
What is a quantity that describes the capacity to do work; a source of usable power?
200
Electromagnetic Radiation
What is the emission and propagation of the entire range of the electromagnetic spectrum including: gamma rays, x-rays,
ultraviolet radiation, visible light, microwaves, and radio
waves?
200
Wheel & axle
What is a type of simple machine that consists of a rod driven through the center of a cylinder that is allowed to rotate freely, yielding a mechanical advantage equal to the
cylinder’s diameter?
200
System
What is a set of objects, organisms, or different parts acting to form a whole?
300
Gravity
What is the observed effect of the force of gravitation?
300
Heat
What is a form of energy resulting from the temperature difference between a system and its surroundings?
300
Thermal energy
What is internal energy found by adding the kinetic energy of
particles making up a substance?
300
Magnetic field
What is the region where magnetic force exist around magnets or electric currents?
300
Scientific method
What is a plan of inquiry that uses science process skills as a tool to gather, organize, analyze, and communicate information?
400
Inertia
What is the property of an object, due to its mass, that causes it to resist any change in its motion unless overcome by a force?
400
Vibration
What is a repetitive movement around an equilibrium point?
400
Evaporation
What is the process in which a liquid is converted to its vapor
phase by heating the liquid?
400
Mixture
What is the product of a thorough blending of two or more
substances, not chemically combined?
400
Investigation
What is a procedure that is carried out in order to observe a
response caused by a stimulus; not a complete experiment?
500
Speed
What is amount of distance traveled divided by time taken; the time-rate at which any physical process takes place?
500
Volume
What is a measure of the amount of space an object takes up; also the loudness of a sound or signal?
500
Condensation
What is the process of changing from a gas (i.e., water vapor) to a liquid (i.e., dew); the act of making more dense or compact?
500
Refraction
What is a change in direction of a wave that occurs as it passes from one medium to another of different density?
500
Experiment
What is a procedure that is carried out and repeated under
controlled conditions in order to discover, demonstrate, or
test a hypothesis; includes all components of the scientific method?