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# 8Science Exam Vocab

newton's 2nd law the acceleraton of an object depends mass and amount of force applied
speed distances traveled divided by the time taken to travel that distance
velocity quantity that tells both how fast and which direction
motion change in motion relative to a reference point
acceleration chance of velocity over time
momentum a quantity defined as the product of mass and velocity on an object
newton's 1st law an object at rest stays in rest and an object in motion stays in motion at a constant speed unless acted upon by a unbalanced force
newton's 3rd law when one objects exerts a force on a second object the second object exerts and equal and oppisite force on the first
inertia tendency of all objects to resist any change in motion
force a push or pull exerted on an object in order to change the motion of an object
net force is the combination of all the forces actin gon an object
friction an unbalanced force
weight a measure of gravitational pull on an object
mass amount of matter in an object
gravity a force of attraction between two objects that is due to their masses
newton SI unit for force
Reference Point an object that seems to stay in place
Cell cycle the life of a cell
Wave any disturbance that transfers energy through matter or empty space
Electromagnetic/Radiation the transfer of energy through em waves
Crest highest point of a wave of a median vibrate from their rest point
Trough lowest point of a wave
Amplitude maximum distance that the particles
Wavelength the distance between any two crests or compressions next to the each other wave
Frequency number of waves produced in a given amount of time
Wave speed speed at which a wave travels
Temperature a measure of the average kinetic energy of the particles of an object
Heat the transfer of energy between two different objects with different temperatures
Thermal energy the total of kinetic energy of the particles that make up a substance
Mitosis process that forms to new nuclei and same number of chromosomes
Heredity the passing of traits from parent cell to daughter cells
Conduction the transfer of thermal energy between two substances by direct contact
Radiation the transfer of thermal energy through em waves
Convection a transfer of energy by circulation or movement of a liquid or gas
Gene the instructions for an inherited trait
Allele the different forms of DNA
Law of conversation of energy a law that states energy cannot be created or destroyed only can be changed from one form to another
Dominance occurs when certain alleles mask the expression of other alleles
Recessive an allele that will be masked unless the organism is homozygous
Punnett Square a type of graph used to predict genetic cross
Chromosome the genetic information organized into structures
Meiosis a process that produces cells with half the usual number of chromosomes
Asexual Reproduction results in offspring with genotypes that are exact copies of there parents genotypes
Sexual Reproduction results in offspring being genitally similar but not identical
DNA genetic material stands for deoxyribonucleic acid
Anther male part (pollen is sperm)
Ovary the swelling at the base of the the flower (where eggs are)
Sepal green leaf like part that protect the flower when it is in bud
Egg in the ovule
Seed the fertilizes matured ovule of a flowering plant, containing an embryo or rudimentary plant.
Gamete a mature sexual reproductive cell, as a sperm or egg, that unites with another cell to form a new organism.
Zygote the cell produced by the union of two gametes, before it undergoes cleavage.
Fertilization the union of male and female gametic nuclei.
Pollination the transfer of pollen from the anther to the stigma.
pH scale scale used to measure how acidic something is
Catalyst is a substance that speeds up a reaction wihtout being permently changed
Acid any compound that increases hydronium ions when dissolved in water
Indicator a compound that changes color depending on conditions like pH
base any compound that increases hydroxide ions when dissolving in water
Evolution the process in which inherited characteristics within a popualtion change over time
Adaption a characteristic that helps improve an individual's chances or survival
Vector A quantity, such as the velocity of an object or the force acting on an object, that has both magnitude and direction
Kinetic Energy energy in use
Potential Energy energy stored away
Mechenicaal Energy describes the sum of potential energy and kinetic energy
Work the transfer of energy to a body by the application of a force that causes the body to move in the direction of the force
Stigma the top and sticky part of the style
Style where the pollen tubes grow
Trait a characteristic or property of some object
Rate Of Reaction how fast or slow a reaction takes place
Sedimantray a type of rock that is formed by sedimentation of material at the Earth's surface and within bodies of water
Sedimet naturally-occurring material that is broken down by processes of weathering and erosion
Tectonic Plate massive, irregularly shaped slab of solid rock
Transform Boundary a fault which runs along the boundary of a tectonic plate
Metamorphic the transformation of an existing rock type
Weathering the breaking down of Earth's rocks, soils and minerals through direct contact with the planet's atmosphere
Convergent boundary an actively deforming region where two (or more) tectonic plates or fragments of lithosphere move toward one another and collide
Igneous formed by the cooling and solidifying of molten materials
Erosion the process of eroding or being eroded by wind, water, or other natural agents
Divergent Boundary A tectonic boundary where two plates are moving away from each other
Created by: Fallin2pieces