Shared Flashcard Set

Details

2nd 9wks Exam
exam vocabulary
38
Science
8th Grade
12/07/2020

Additional Science Flashcards

 


 

Cards

Term
medium
Definition
a material in which a wave travels
Term
mechanical wave
Definition
a wave that can travel only through matter
Term
rarefaction
Definition
the region of a longitudinal wave where the particles of the medium are farthest apart
Term
trough
Definition
the lowest point on a transverse wave
Term
wave
Definition
a disturbance that transfers energy from one place to another without transferring matter
Term
crest
Definition
the highest point on a transverse wave
Term
wavelength
Definition
the distance between one point on a wave and the nearest point just like it
Term
transverse wave
Definition
a wave in which the disturbance is perpendicular to the direction the wave travels
Term
amplitude
Definition
the maximum distance a wave varies from its resting position
Term
vibration
Definition
a rapid back-and-forth motion that can occur in solids, liquids, or gases
Term
sound wave
Definition
a longitudinal wave that can travel only through matter
Term
intensity
Definition
the amount of energy that passes through a square meter of space in one second
Term
pitch
Definition
the perception of how high or low a sound is
Term
interference
Definition
occurs when waves overlap and combine to form a new wave
Term
Doppler effect
Definition
the change of pitch when a sound source is moving in relation to an observer
Term
diploid
Definition
a cell that has pairs of chromosomes
Term
DNA
Definition
the abbreviation for deoxyribonucleic acid, an organism's genetic material
Term
egg
Definition
the female reproductive, or sex, cell
Term
sperm
Definition
a male reproductive, or sex, cell
Term
zygote
Definition
the cell that forms when a sperm cell fertilizes an egg cell
Term
fission
Definition
cell division that forms two genetically identical cells
Term
fertilization
Definition
a reproductive process in which a sperm joins with an egg
Term
cloning
Definition
a type of asexual reproduction performed in a lab that produces identical individuals from a cell or cluster of cells taken from a multicellular organism
Term
asexual reproduction
Definition
a type of reproduction in which one parent organism produces offspring without meiosis and fertilization
Term
sexual reproduction
Definition
type of reproduction in which the genetic material from two different cells--a sperm and an egg--combine, producing offspring
Term
haploid
Definition
a cell that has only one chromosome from each pair
Term
budding
Definition
the process during which a new organism grows by mitosis and cell division on the body of its parent
Term
culture
Definition
the process of rowing living tissue in a lab
Term
acoustics
Definition
the study of how sound interacts with structures
Term
echo
Definition
a reflected sound wave
Term
reflection
Definition
the bouncing of a wave off a surface
Term
sonar
Definition
a system that uses the reflection of sound waves to find underwater objects
Term
echolocation
Definition
the process an animal uses to locate an object by means of reflected sounds
Term
mitosis
Definition
a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.
Term
meiosis
Definition
a process in which one diploid cell divides to make four haploid cells
Term
absorption
Definition
the transfer of energy from a wave to the medium through which it travels
Term
frequency
Definition
the number of wavelengths that pass by a point each second
Term
compression
Definition
region of a longitudinal wave where the particles of the medium are closest together
Supporting users have an ad free experience!