Studied by 10 people
Physics (2), Nervous System (4.1), Chemistry (3)
How to calculate speed
Distance/Time
Distance
The amount actually traveled
Displacement
The exact distance an object travelled from start to end point
Velocity Calcuation
Displacement/Time
Newtons first law
An object in motion shall remain in motion unless acted upon by a given force
Newtons second law
Force = mass x acceleration
Newtons third law
Every action has an equal and opposite reaction
Inertia
The tendency of an object to resist a change in motion
Nucleus
Center of Atom
Proton
Positively charged particle
Electron
Negativly charged particle
Neutron
A subatomic particle that has no charge and that is found in the nucleus of an atom
Atomic mass
Number of protons and neutrons
Properties of metals
Lustrous, Malleable, ductile, conductive
Properties of non-metals
Dull, glassy or gaseous in appearance, Low density, brittle, insulator
Valence electrons
Electrons on the outermost shell
Octet rule
States that atoms lose, gain or share electrons in order to acquire a full set of eight valence electrons
Ions
positively and negatively charged atoms
Law of Conservation of Mass
Matter is not created nor destroyed in any chemical or physical change
Why do elements in the same group have similar chemical properties
They have same amount of Valance Electrons which help determine how elements interact with each other
Cation
An ion with a positive charge because of losing an electron
Anion
An ion with a negative charge because it gained an electron
DNA
Deoxyribose Nucleic Acid
What are Complementary Bases
Adenine to Thymine
Cytosine to Guanine
Shape of DNA Molecule
Double Helix
Amino acids
Molecules that combine to form proteins
RNA
Ribonucleic Acid
Transcription
Copying of DNA to RNA (mRNA)
mRNA
Messenger RNA responsible for transcpription and taking the code outside of the nucleus to the ribosome
tRNA
Transfer RNA responsible for translation by gathering necassary amino acids for the process of Translation to make proteins.
Codon
A specific sequence of three adjacent bases on a strand of DNA or RNA that provides genetic code information for a particular amino acid
Translation
Decoding of a mRNA message into a polypeptide chain
Genotype
The genetic information on an allele
Allele
A variation in a gene
Phenotype
An organism's physical appearance, or visible traits (The Genotype Expressed)
Genes
A section of DNA that codes for a protein
Homozygous
Having two identical alleles for a particular gene
Heterozygous
Having two different alleles for a particular gene
Number of chromosomes
46 (23 pairs) - 22 Autosomal and 1 Sex linked pair
Research question
Measurable
Contain what you will be changing and what you will be measuring
Specific
Aim
The purpose for conducting an experiment without making a prediction
Hypothesis
A testable prediction, often implied by a theory
Method
Shows how you collect data and test your hypothesis
Independent variable
The experimental factor that is manipulated; the variable whose effect is being studied.
Dependent variable
The outcome factor; the variable that may change in response to manipulations of the independent variable.
(What you are measuring)
Controlled variables
All those things that must be kept the same during the investigation to produce a valid, fair test.
Validity
The extent to which an experiment tests the relationship between the independent and dependent variables
Repeatability
How well the experimental design ensures that the results can be repeated by the same experimenter
Reproducibility
How well the experimental design ensures that the results can be repeated by a different experimenter
Force
A force is an influence that can change the motion of an object, a push or pull
Normal force
The contact force exerted by a surface on an object
Applied force
A contact force which is applied to an object by a person or another object
Central nervous system
Brain and Spinal Cord
Peripherial Nervous System
Nerves outside the central nervous system
Note
Flashcard