Praxis II 5511 Science; Questions & Answers
(A+)
Nicholas Copernicus Answer-determined Earth was not center of universe and planets
orbit the Sun...explained seasons and Earths rotation on its axis
da Vinci Answer-invented hygrometer (measures moisture in air)and invented
anemometer (wind s...
Praxis II 5511 Science; Questions & Answers
(A+)
Nicholas Copernicus Answer-determined Earth was not center of universe and planets
orbit the Sun...explained seasons and Earths rotation on its axis
da Vinci Answer-invented hygrometer (measures moisture in air)and invented
anemometer (wind speed)
Gailileo Galilee Answer-ivnented thermoscope aka thermometer, discovered all objects
fall at same rate, studied orbits of planets and disovered Jupiters moons
Newton Answer-discovered principles of gravity
Leewwenhoek Answer-invented microscope 1670s
Ben Franklin Answer-discovered lightning and static electricty 1750
Watt Answer-invented steam engine 1778
Whitney Answer-invented cotton gin 1794
Darwin Answer-1835 discovered principles of species evolution- on origin of species
, Praxis II 5511 Science; Questions & Answers
(A+)
Mendel Answer-discovered principles of genetics 1865
florence sabin Answer-discovered origins of blood 1917
1st law of thermodynamics Answer-always as much energy after something happens as
there was before it happened
2nd law of thermo Answer-everything directs itself toward the lowest energy state with
the most equal distribution of resources
work Answer-process of an object being moved over a distance in response to some
force being applied
power Answer-rate or measure of the time work can be done (work/time)
, Praxis II 5511 Science; Questions & Answers
(A+)
force Answer-pressure or change applied to an object and includes gravity, electic, and
magnets. can be measured in N or pounds. F=mass*acceleration
speed Answer-how far something travels in a specific time (s=d/t)
potential energy Answer-energy that could possibly do the work if it was released or a
force imposed on the object
kinetic energy Answer-energy that does the work or energy that is recurring
conservation of mass/matter Answer-matter can neither be created or destroyed but it
can be rearranged. sum of matter and energy in universe stays the same
conservation of energy Answer-energy remains constant in a system and cannot be
recreated, but can change forms
conservation of momentum Answer-total momentum remains the same unless acted
upon by an outside force demonstrated by the equation p=mv momentum=mass*velocity
charge conservation Answer-electric charge can neither be created nor destroyed but is
always conserved
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller GOLDTUTORS. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.99. You're not tied to anything after your purchase.