Thermodynamics Section Review 9A: 1. Scientists believed that the caloric was a material but mainly that it was an invisible fluid consisting of self-repelling particles. Two examples include how gases expand according to Newton’s laws‚ and determining the speed of sound in air. 2. The first person to successfully challenge the caloric theory was Benjamin Thompson. Benjamin observed that a dull boring bit could generate more hat than needed to melt the entire cannon barrel. 3. The significance
Premium Temperature Thermodynamics
development of the axiomatic method by the Greeks. It presents Euclid’s five postulates and includes one of Legendre’s attempted proofs of the fifth postulate. In order to detect the 1 Einstein’s special theory of relativity‚ which is needed to study subatomic particles‚ is based on a simpler geometry of space-time due to H. Minkowski. The
Premium Euclidean geometry Geometry
In “Into the Universe with Stephen Hawking‚” Hawking discusses his vision of the universe and it’s ability to exist. In the episode‚ Hawking shares his knowledge on how the universe came into existence and how it managed to become what it is today. Hawking also shares the evidence that scientists‚ such as himself‚ have collected through the years. First of all‚ the video discuss that “the universe is constantly expanding… like balloon.” Hawking explains this by a simple demonstration of the Doppler
Premium Universe Atom Hydrogen
1. Define science – Science is the development of concepts about the natural world ‚ often by using the scientific method 2. Define multicellular organism - are those organisms containing more than one cell‚ and having differentiated cells that perform various functions. 3. Identify the 3 domains of living things. Which domains include one-celled organisms with no nucleus? a) Organized‚ Homeostatic & Reproduce. b) Bacteria & Archaea 4. Modern taxonomists (scientists
Premium Atom Oxygen Science
1. What are the six regions of the Sun? The Sun’s regions are the core‚ the radiative zone‚ the convective zone‚ the visible surface‚ the chromospheres‚ and the corona. The core‚ radiative zone‚ and convective zone make up the interior of the Sun. The visible surface‚ chromosphere‚ and corona make up the exterior of the Sun. 2. What is nuclear fusion? What role does nuclear fusion play in the Sun? Nuclear fusion happens when two atomic nuclei combine to form one heavier nucleus. Since the majority
Premium Sun Neutron
a sea of positive charge. We now know that the positive charges within the atom are caused by protons which sit inside the nucleus. How did Rutherford discover the nucleus? Rutherford conducted the gold foil experiment. To do this he fired alpha particles at a thin sheet of gold foil.He proved that the majority of the mass of an atom was in a small portion‚ meaning that there must be a nucleus holding the protons and neutrons. Why is the gold foil experiment so significant? The significance of the
Premium Nuclear fission Neutron Atom
7 properties of Life |Description/Examples | | |Order |All living things exhibit complex but ordered organization; structure of a pinecone | |Regulation |The environment outside of the organism may change drastically‚ but the organism can adjust its internal | | |environment keeping it within appropriate limits; temperature (shivering and sweating) | |Growth & Development |Information carried
Premium Cell Bacteria Photosynthesis
Henry Moseley (November 23‚ 1887 – August 10‚ 1915) was an English physicist. His main contributions to science were the quantitative justification of the previously empirical concept of atomic number‚ and Moseley’s law. This law advanced chemistry by immediately sorting the elements of the periodic table in a more logical order. It also advanced basic physics by providing independent support for the Bohr model of the Rutherford/Antonius Van den Broek nuclear atom containing positive nuclear charge
Premium Atom Chemistry Atomic number
States of matter Four fundamental states: Solid - In a solid the particles (ions‚ atoms or molecules) are packed closely together. As a result‚ a solid has a stable‚ definite shape‚ and a definite volume. Solids can only change their shape by force‚ as when broken or cut. Liquid - A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure. The volume is definite if the temperature and pressure are constant
Premium Magnetic field Photon
Current Events Assignment Earthquake in Japan On March 11‚ a 9.0-magnitude earthquake struck the northeastern coast of Japan‚ causing widespread and serious damage to infrastructure and to human life. A massive earthquake-triggered tsunami followed‚ washing away large parts of several coastal cities The recent tragedy in Japan will affect the global food supply and might just be the event that triggers the reverse of our dependence on Asia for cheap foods. Americans might complain about
Premium Food Radioactive decay Nutrition