rate of change velocity ,usually expressed in meters per second involves an increase or decrease in speed and/or a change in direction
What is acceleration
100
atoms as a source of nuclear energy.
What is atom
100
the energy needed to raise the temperature of 1 kilogram of water through 1 °C, equal to one thousand small calories and often used to measure the energy value of foods
What is calorie
100
Matter can change from one state to another if heated or cooled. If ice (a solid) is heated it changes to water (a liquid). This change is called MELTING. If water is heated, it changes to steam (a gas).
What is change of state
100
a variable (often denoted by y ) whose value depends on that of another.
What is dependent vairiable
200
force of air on moving object
What is air resistence
200
The electron is a subatomic particle, symbol e− or β− , with a negative elementary electric charge
What is electron
200
the conversion of a vapor or gas to a liquid
What is condensation
200
Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances
What is chemical change
200
a variable (often denoted by x ) whose variation does not depend on that of another
What is independent vairiable
300
in any periodic function the maximum absolute variation of the function
What is amplitude
300
each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter. Each element is distinguished by its atomic number, i.e., the number of protons in the nuclei of its atoms.
What is element
300
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
300
an established itinerary of events or venues used for a particular activity, typically involving public performance.
What is circut
300
a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
What is expieriment
400
the peak or the highest point on the wave
What is Crest
400
not helping or supporting either side in a conflict, disagreement, etc.; impartial
What is neutral
400
a principle stating that energy cannot be created or destroyed, but can be altered from one form to another
What is conservation of energy
400
a thing that is composed of two or more separate elements; a mixture
What is compound
400
the action of investigating something or someone; formal or systematic examination or research
What is investigation
500
the process by which a beam of light or other system of waves is spread out as a result of passing through a narrow aperture or across an edge, typically accompanied by interference between the waveforms produced
What is difraction
500
with a positive electric charge of +1e elementary charge and mass slightly less than that of a neutron. Protons and neutrons, each with masses of approximately one atomic mass unit, are collectively referred to as "nucleons".
What is proton
500
physics, energy is the property that must be transferred to an object in order to perform work on – or to heat – the object, and can be converted in form, but not created or destroyed
What is energy
500
the degree of compactness of a substance.
What is density
500
a set of principles or procedures according to which something is done; an organized scheme or method