Test your basic knowledge |

CSET Physical Science 3

Subjects : cset, science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A water - soluble mixture of different dyes extracted from lichens - It is often absorbed onto filter paper






2. Protons have a __________ electrical charge - and neutrons have no charge






3. Resistance to fracture or plastic (permanent) deformation due to friction from a sharp object






4. Expand to fill any available space - a compressible fluid - with its volume determined by the pressure and temperature of the environment






5. Hard matter is ______ with soft matter






6. In optics - refraction occurs when light waves travel from a medium with a given refractive index to a medium with another index Example: A ray of light will refract as it enters and leaves glass - assuming there is a change in the refractive index.






7. Opposite process of nuclear fission - Yields energy when very light nuclei unite to a heavier nucleus - Stars (including the sun) derive their energy from nuclear fusion






8. A source of electric light that works by incandescence - An electric current passes through a thin filament - heating it until it produces light - The enclosing glass bulb prevents the oxygen in the air from reaching the hot filament - which otherwis






9. Height of the bounce of an object dropped o the material - related to elasticity






10. In each element's square - the ________ is in the middle - the atomic weight is usually directly below the symbol - the atomic number is usually shown at the top of the square






11. Show the number of molecules or formula units of the reactants and products - Example: nitrous oxide is a colorless - odorless gas that causes mild hysteria when inhaled - hence the name laughing gas; it is prepared by heating ammonium nitrate crysta






12. Symbol: C Protons: 6 Neutrons: 6 Mass: 12






13. A change of one substance into a different substance - Occurs whenever compounds are formed or decomposed - During this reaction - there is a rearrangement of atoms that makes or breaks chemical bonds - This change is usually not reversible - unlike






14. In everyday situations - the weight of an object is ____________ - which usually makes it acceptable to use the same word for both concepts






15. Energy generated from natural sources (such as sunlight - wind - rain - tides - and geothermal heat) which are renewable (naturally replenished)






16. If the pressure increases - the volume decreases; the reverse is true as well

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


17. The pitch of a sound depends on how fast the particles of a medium vibrate






18. A grooved wheel with a rope or other item wrapped around it - used to change the direction of an applied force - change the amount of force - transmit rotational motion - or realize a mechanical advantage in either a linear or a rotational system of






19. After a rainstorm - the air is full of tiny drops of water - Each drop acts as a prism - splitting the light into the colors of the spectrum






20. Involve one substance changing states (not one substance changing into another) - Typically reversible Example: water - Can change from a gas (water vapor) to a liquid (water) to a solid (ice) - but the water molecules do not change






21. A mechanical device that changes the direction or magnitude of a force - The simplest mechanisms that use mechanical advantage to multiply force - Uses a single applied force to do work against a single load force






22. As temperature increases (at a fixed pressure) - so does volume Examples: air - helium - steam

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


23. The number of waves produced in a given time






24. Can multiply force or distance depending on the location of the fulcrum End: Output force Middle: Fulcrum Other end: Input force Examples: seesaws - scissors - pliers






25. Releases energy when a heavy nucleus splits into smaller fragments - Used in power plants and atomic bombs






26. The ratio of the output to the input force - Also called leverage - Results in less force applied over a greater distance - Helps to make work easier






27. Heat tends to move from a high - temperature region to a low- temperature region - This heat transfer may occur by the mechanisms of conduction - radiation - and convection






28. The distance between two consecutive points on a wave (crest to crest)






29. Major greenhouse gases






30. The burning of coal also contributes to the formation of...






31. Elements are assigned atomic numbers equal to the __________ in the nucleus of their atoms - Each element has a different number of protons






32. Refers to various properties of matter in the solid phase that give it a high resistance to its shape changing when force is applied






33. Turns red under acidic conditions - and turns blue under basic (i.e. - alkaline) conditions






34. Unlike incandescent lamps - fluorescent lamps always require a ______ to regulate the flow of power through the lamp






35. Composed of only one atom and cannot be separated into different substances except in some instances by radioactive decay or by nuclear reactions






36. Resistance to plastic (permanent) deformation due to a constant load from a sharp object






37. The resulting piece of paper or solution with water becomes a ________ (one of the oldest) - used to test materials for acidity






38. Transferring of heat by emission and dissemination of waves or particles - Generated when heat from the movement of charged particles within atoms is converted to electromagnetic radiation - Electromagnetic radiation emitted from the surface of an ob






39. Seems to travel in perfectly straight lines as rays - The direction of a ray changes at the interface between two transparent materials - like air and water






40. Are inclined planes - Can convert a rotational force (torque) to a linear force - and vice versa - The ratio of threading determines the mechanical advantage of the machine - More threading increases the mechanical advantage






41. Symbol: O Protons: 8 Neutrons: 8 Mass: 16






42. However - a fluorescent lamp converts electrical power into useful light more __________ than an incandescent lamp; lower energy costs offset the higher initial cost of the lamp






43. This is the variable that changes as a result of the manipulated variable. The dependent variable is observed and measured. Examples include determining how long various saltwater solutions take to freeze - and determining the number of cycles a pend






44. A hypothesis is an attempt to answer the question or predict the outcome - - A hypothesis is a possible explanation for a set of observations






45. Top: Output force (resistance) Middle: Input force (effort) End: Fulcrum Examples: baseball bat - fishing pole - shovel






46. A gas - discharge lamp that uses electricity to excite mercury vapor - The excited mercury atoms produce short - wave ultraviolet light that then causes a phosphor to fluoresce - producing visible light






47. A natural phenomenon by which objects with mass attract one another - Compels dispersed matter to coalesce - and thus it accounts for the very existence of the earth - the sun - and most of the macroscopic objects in the universe - Responsible for ke






48. The sum of the protons and neutrons gives an ______________ for the element






49. For every action (applied force) - there is an equal and opposite reaction

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


50. The particular state of water is determined by ___________ - the behavior of water at one atmosphere (sea level) - freezing at 0