Category: Physics

Which key is used to delete a slide? For a single slide: Right-click the slide in the thumbnail pane on the left, and select Delete Slide. For multiple slides: Press and hold Ctrl, and in the thumbnail pane on the left, select the slides. Release the Ctrl key. Which type of information can you add […]

How do you tell if current is clockwise or counterclockwise? It is “clockwise” when you look at your hand thumb-on, or when you look at the change pointing towards you. This means that if a current follows that curling, it goes to a higher voltage; or if it opposes that curling, it goes to a […]

What is the similarities between suspension and colloid? both are heterogeneous mixture. particles of both suspension and colloidal solution scatter when a beam of light is passing through them and make it’s path visible. How do you identify suspensions colloids and solutions? In summary: A solution is always transparent, light passes through with no scattering […]

Has there ever been a Shinkansen accident? The Shinkansen, Japan’s high-speed rail line, has never had a fatal crash or derailment in its 55-year history. (One train hit a man on an elevated track last year in what the police described as a suicide.) Is the Shinkansen profitable? Not all Shinkansen are profitable, but four […]

What shape is your velocity graph? If the acceleration is positive, then the line is an upward sloping line – having a positive slope. If the acceleration is negative, then the velocity-time graph is a downward sloping line – having a negative slope. If the acceleration is great, then the line slopes up steeply – […]

Do phonons actually exist? Phonon is considered a quasi-particle, beacuse it can exist only in solids as a consequence of vibrational motions: they cannot propagate in vacuum. > as a consequence of vibrational motions: they cannot propagate in vacuum. Do phonons have mass? A phonon — a particle-like unit of vibration that can describe sound […]

What is the serous membrane that covers the lungs? pleurae What is the name of the serous membrane that covers the heart? pericardium What are the two major categories of body membranes? Body membranes are thin sheets of tissue that cover the body, line body cavities, and cover organs within the cavities in hollow organs. […]

Is snow a type of condensation? Condensation is a phenomenon that occurs when air shrinks so much that it is no longer able to capture and hold humidity. Water molecules are pressed (forced) out of the spaces between the air molecules. As a result, we see vapor (e.g. “giving out”, damping, dew, mist, clouds) or […]

What is experiment in data collection? Experiment. An experiment is a controlled study in which the researcher attempts to understand cause-and-effect relationships. The study is “controlled” in the sense that the researcher controls (1) how subjects are assigned to groups and (2) which treatments each group receives. What is the purpose of data in an […]

What are the major differences between unicellular and multicellular organisms? Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function. Unicellular organisms include bacteria, protists, and yeast. What are 4 examples of multicellular organisms? Following are […]