Test 3 Flashcards
How do you find an objects acceleration
divide the change in velocity by the change in time
how do you find the momentum of an object
momentum= mass x velocity or p=mv
what vessel carries blood from the heart to the body
the aorta
pathway of blood through the heart (VC Ray’s rav went from LA to LV Airport)+ 2 valves
vena cava-right atrium- (tricuspid valve)- right ventricle- Left atrium- (mitral/bicuspid valve) -left ventricle- Aorta
what is a photon
light particle
what is ohm’s law
ohms measures resistance. the law states that resistance= voltage/current
difference between smooth muscle and cardiac/skeletal muscles is
lack of striations or bands on smooth muscle
how do you calculate the work exerted on an object
work= force x distance w=fd
the velocity of a wave can be found by multiplying ___ by ___
frequency by wavelength
how is electrical potential measured?
electrical potential is measure in volts
what does watts measure
watts measure power
what do amperes measure
amperes measure current
what is Newton’s 1st law
Newtons 1st law= intertia.
What is Newtons 2nd law
Newtons 2nd law= acceleration. acceleration of an object requires force which is calculated by force=ma
What is Newtons 3rd law
Newtons 3rd law= force. states that when one object applies force to second object the second object applies an equal and opposite force to the first object
groups on periodic table left to right
1 hydrogen (non metal), alkali metals, alkaline earth metals, transition metals, post transition metals, metalloids (diagonal), non metals, halogens, noble gas
DNA is made up of what
nucleic acids
Reflection vs Refraction vs Diffraction
reflection= when light bounces back at the same angle in which it hits an object refraction= when light changes speed as it goes from one medium to another ex rainbow- suns light bends thru rain drops and makes color diffraction= bending of waves around obstacles in their path ex color rainbow pattern on back of cd
for resistance to stay constant when ___ is up ___must be down per Ohms law. ___ and ___ are inversely proportional
volts and current are inversely related when it comes to resistance per Ohms law.
resistance= volts/ current
