Physical Science Vocabulary Practice (Physics, Chemistry, Earth and Space)

75 terms by swscience 

Create a new folder

Advertisement Upgrade to remove ads

carbon chemistry

the science of the composition, structure, properties and reactions of carbon based matter, especially of atomic and molecular systems

fact

information that has been objectively verified

hypothesis

an assertion subject to verification or proof as a premise from which a conclusion is formed

information technology

the technical means that humans create to store and transmit information

inquiry

a systematic processes for using knowledge and skills to acquire and apply new knowledge

instructional technology

any mechanical aid used to assist in or enhance the processes of learning to teaching

law

summarizing statement of observed experimental facts that has been tested many times and is generally accepted as true

model

a description, analogy or a representation of something that helps us understand it better

nova

a variable star that suddenly increases in brightness to several times its normal magnitude and returns to its original appearance in a few weeks or months or years

patterns

repeated processes that are exhibited in a variety of ways

radioactive isotope

an atom that gives off nuclear radiation and has the same number of protons as another atom but a different amount of neutrons

scale

relates concepts and ideas to one another by some measurement

science

search for understanding the natural world using inquiry and experimentation

technological design process

recognizing the problem, proposing a solution, implementing the solution, evaluating the solution and communicating the problem

technology education

the application of tools, materials, processes and systems to solve problems and extend the human capabilities

tool

any device used to extend human capabilities including computer-based tools

angular momentum

the resistance of an object to changes of rotation

atoms

the smallest unit of an element that retains the chemical properties of that element

colligative properties

properties of solutions that depend on the number of particles in a given volume of solvent and not on the mass of the particles

compounds

a substance consisting of two or more different elements chemically bonded together in a fixed proportion by mass

conduction

the transfer of heat through solids

convection

transfer of heat by moving the molecules of a gas and/or liquid

Coulomb's Law

electrical charges attract or repel one another with a force proportional to the product of their charges and inversely proportional to the square of their separation distance

current

the flow of electrons through a conductor

density

the ratio of its mass (m) to its volume (V), a measure of how tightly the matter within it is packed together

electricity

the flow of electrons through a conductor or the addition or loss of electrons from a material

electrochemical reactions

any process either caused or accompanied by the passage of an electric current and involving in most cases the transfer of electrons between two substances-one solid and the other a liquid

electromagnetic force

the force that charged objects exert on one another

electromagnetic spectrum

electromagnetic waves can exhibit a distribution of frequencies ranging below radio wave to light beyond the visible

electron orbital transitions

the probability distribution of an electron in an atom or molecule

elements

a type of atom that is distinguished by its atomic number, i.e., by the number of protons in its nucleus

endothermic

a process or reaction that absorbs energy in the form of heat

engineering design process

the process or method used by engineers to solve a problem 1. Define a problem 2. Generate ideas 3. Select a solution and test it 4. Make the item 5. Evaluate the item 6. Communicate the solution with others 7. Present the results

equilibrium

a condition in which all acting influences are canceled by others, resulting in a stable, balanced or unchanging system

exothermic

a process or reaction that releases energy usually in the form of heat, but it can also release energy in the form of light, sound or electricity

frequency

the number of repeated wave cycles per second

galaxy

a massive, gravitationally bound system consisting of stars, an interstellar medium of gas and dust and dark matter

gravity

the fundamental force of attraction that all objects with mass have for each other

hydrogen bonds

a special type of dipole-dipole force that exists between an electronegative atom and a hydrogen atom bonded to Nitrogen, Oxygen or Fluorine

Igneous

rock produced under conditions involving intense heat, as rocks of volcanic origin or rocks crystallized from molten magma

inertia

the resistance an object has to a change in its state of motion

innovation

the introduction of something new or a new idea, method or device

invention

a creation of the mind, and both the process to arrive at this creation and the capabilities to create it

Kinetic Molecular Theory

explains the forces between molecules and the energy that they possess

Law of Superposition

a general law stating that in any sequence of sediments or rocks that has not been overturned, the youngest sediments or rocks are at the top of the sequence and the oldest are at the bottom

magnets

a material that attracts or repels the same material and attracts iron and steel

mass

how much matter there is in an object

meteorology

the interdisciplinary scientific study of the atmosphere and focuses on weather processes and forecasting

mixtures

a substance that is not the same from one sample to the next, and a mixture can be separated into its parts; two or more substances that are mixed together but not chemically joined

molar mass

the mass of one mole of a substance, chemical element or chemical compound

mole

Avogadro's number of the constituent entities of that substance

molecules

the smallest particle of a substance that retains the chemical and physical properties of the substance and is composed of two or more atoms

nanotechnology

deals with materials and machines on an incredibly tiny scale - less than one billionth of a meter

Newton's Laws

three laws that explain the motion of objects caused by forces

nuclear processes

the splitting (fission) or merging together (fusion) of the nuclei of atom(s)

nuclear reactions

a process in which two nuclei or nuclear particles collide to produce products different from the initial particles

Ohm's Law

voltage is equal to the current times the resistance

period

the time in seconds for one wave cycle to occur

periodic table

a tabular method of displaying the chemical elements; used to illustrate recurring trends in the properties of the elements

plate tectonics

the branch of geology studying the folding and faulting of the earth's crust

polarity

description of how equally bonding electrons are shared between atoms

radiation

transfer of heat through light

radioactive decay

the process in which an unstable atomic nucleus loses energy by emitting radiation in the form of particles or electromagnetic waves

resistance

a material that causes a reduction in voltage between two points

rock cycle

the process by which rocks are formed, altered, destroyed, and reformed by geological processes

sedimentary

rock that has formed through the deposition and solidification of sediment

seismic events

the rupture of geological faults, huge amounts of gas migration, mainly methane deep within the earth, but also by volcanic activity, landslides, mine blasts and nuclear experiments

simple harmonic motion

a motion that repeats over identical time intervals

specific heat

the measure of the heat energy required to increase the temperature of a unit quantity of a substance by a certain temperature interval

topography

the three-dimensional arrangement of physical attributes (shape, height, depth) of a land surface in a place or region

torque

a force applied at right angles to an object's center of rotation that cause rotation

velocity

the speed and direction of an object or wave

voltage

the difference of electrical potential between two points that cause current to flow

VSEPR

a model which is used for predicting the shapes of individual molecules based upon their extent of electron-pair electrostatic repulsion

wavelength

the physical length of one cycle or period of a wave

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set