Newtons Law of Motion
the measurement of weight
Newton (N)
the measurement of energy
joules (J)
what are the 4 states of matter
solid , liquid , gas and plasma
what does waves need to travel
energy
what is a circuit
controls the movement of electric current by providing paths for electrons to follow
which of newton's law states that for every action there is an equal and opposite reaction?
potential and kinetic energy
what is substance
matter that is always made up of the same combination of atoms
what is waves
the disturbance that carries energy from one location to another location
what are the three basic parts of a electric circuit
energy source , wire and form of energy(load)
the law that states the total amount of momentum does not change
what are the 4 types of friction in order of lease to greates strength
rolling , sliding , static and fluid
what is the difference in solute and solvent
solute- the substance being dissolved
solvent - the substance that dissolves the solute
what are the different parts of a wave
crest-top of wave
trough-bottom of wave
wavelength-distance from one crest to the next
amplititude - how much energy the wave carries from rest to create or rest to trough
equilibrium-the line drown throught the center reprending the rest position
what is voltage
is the potential difference between two points in a circuit
A track athlete throws a 2kg discus into a field with a velocity of 21 m/s . What is the momentum of the discus.
42kg.m/s
what type of friction occures when brakes are applied on a car or a bicycle
kinetic friction
what is diffusion
the process by which substances move from areas of higher concentration to areas of lower concentration
what is the difference between a transverse and longituinal wave
transverse-the particles move perpendicular to the direction the waves travel
longitudinal-the particles move parallel to the direction of the waves's propagation
what is a conductor and insulators
conductos allow the flow of electric current
insulators resist the flow of electric current
what are the four types of force
gravitation , electromagnetic , weak nuclear and strong nuclear
what does a simple machine do
modify motion and the magnitude of a force.
what is osmosis
the movement of water through a semi-permeable membrane from an area of high-water concentration to an area of low-water concentration
what is electrmagnetic waves
are waves that are capable of traveling through a vacuum ( no medium
what is a voltmeter and ammeter
voltmeter-increaes the voltage source
ammeter-decreaes the resistance in the circuit