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Physics
atom
energy
Physical Science
Nature of Science
100
The rate of change of velocity per unit of time.
What is acceleration
100
a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
What is an electron
100
the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.
What is conduction
100
a thing that is composed of two or more separate elements; a mixture.
What is compound
100
a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
What is experiment
200
a push or a pull
What is force
200
a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign.
What is a proton
200
quality of being hot; high temperature.
What is heat
200
an airlike fluid substance which expands freely to fill any space available, irrespective of its quantity.
What is gas
200
the action of investigating something or someone; formal or systematic examination or research.
What is investigation
300
the force that attracts a body toward the center of the earth, or toward any other physical body having mass. For most purposes Newton's laws of gravity apply, with minor modifications to take the general theory of relativity into account.
What is gravity
300
a subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen.
What is a neutron
300
the process of turning from liquid into vapor.
What is evaporation
300
An electric circuit is a path in which electrons from a voltage or current source flow. The point where those electrons enter an electrical circuit is called the "source" of electrons. The point where the electrons leave an electrical circuit is called the "return" or "earth ground".
What is circuit
300
a set of principles or procedures according to which something is done; an organized scheme or method.
What is System
400
the speed of something in a given direction.
What is velocity
400
a part or aspect of something abstract, especially one that is essential or characteristic.
What is an element
400
the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles that cause ionization.
What is radiation
400
the natural agent that stimulates sight and makes things visible.
What is light
400
a method of procedure that has characterized natural science since the 17th century, consisting in systematic observation, measurement, and experiment, and the formulation, testing, and modification of hypotheses.
What is Scientific method
500
air resistance is the frictional force air exerts against a moving object.
What is air ressistance
500
the basic unit of a chemical element.
What is an atom
500
Energy can exist in a variety of forms, such as electrical, mechanical, chemical, thermal, or nuclear, and can be transformed from one form to another. It is measured by the amount of work done, usually in joules or watts. See also conservation of energy, kinetic energy, potential energy. Compare power, work.
What is energy
500
a substance that flows freely but is of constant volume, having a consistency like that of water or oil.
What is liquid
500
able to be changed or adapted.
What is variable