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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 wave's height - the distance between its resting position and its crest






2. Kinetic energy: energy possessed by a moving object - An object in an unstable position has potential energy - for the position could be converted into movement Example: a baseball thrown vertically upward






3. In physics and engineering - it means the strength of the gravitational pull on the object (how heavy it is - measured in newtons)






4. The liquid state is __________ between the solid and gaseous states with regard to molecular motion and attractive forces between molecules Examples: water - oil - milk - honey






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


6. The number of waves produced in a given time






7. The portion of the light that crosses the boundary is - however - deflected in another direction - and the ______ does not equal the angle of incidence






8. 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






9. Form a question (state the problem) - A scientific question is one that can be answered on the basis of evidence and that can be measured - The question often asks - 'What effect will something have






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






11. The top of a wave's 'hill'






12. Multiply force but do not change the direction of the input force End: Fulcrum Middle: Output force Other end: Input force Examples: wheelbarrows - baby strollers - bottle openers






13. Anything that has mass and occupies space - Everything you see and touch is composed of matter






14. Salt has a ___________ than water and therefore doesn't evaporate with the water






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






16. Scratch hardness - indentation hardness - and rebound hardness






17. Solar - Chemical - Electrical - Magnetic - Nuclear - Sound - Light - Electromagnetic - Mechanical (motion)






18. Account for 17 elements in the periodic table - Lack the properties of metals but are very common - Include oxygen - nitrogen - and carbon - 7 metalloid elements - and 7 gases - Poor conductors of electricity






19. A rigid object that is used with an appropriate fulcrum or pivot point to multiply the mechanical force that can be applied to another object - Examples: wheelbarrow (the wheel works as the fulcrum) - scissors (the fulcrum is where the blades cross)






20. Electricity flows easily through materials that conduct electricity - Include metals such as aluminum (Al) - iron (Fe) - nickel (Ni) - silver (Ag) - and gold (Au)






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






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






23. Characterized by their ability to retain their shape - Relatively incompressible - Melt when heated and vaporize only slightly - All substances become solid if cooled sufficiently Examples: rocks - crystals - wood - feather - ice






24. List the specific materials to be used in the experiment - This allows for replication of the experiment






25. Symbol: U Protons: 92 Neutrons: 146 Mass: 238






26. Displayed by permanent magnets and around electric currents






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


28. A flat surface whose endpoints are at different heights - resulting in a slope - By moving an object up an ___________ rather than completely vertically - the amount of force required is reduced - at the expense of increasing the distance the object






29. A measure of the acidity or basicity of a solution - The ____ scale is not an absolute scale; it is relative to a set of standard solutions whose pH is established by international agreement - these measurements are important for medicine - biology -






30. A compound and portable inclined plane - A triangular - shaped tool used to separate two objects or portions of an object - lift an object - or hold an object in place - It functions by converting a force applied to its blunt end into forces perpendi






31. A compressed gas pushes out __________ in all directions






32. 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






33. Known as insulators - In materials that act as insulators - the electrons are held tightly inside their atoms and the electrons cannot move freely - Include plastic - rubber - glass - air - and wood






34. Glass has a higher ___________ than air and the different frequencies of light have different wavelengths (dispersion) - causing them to be refracted at different angles - so that you can see them - The different frequencies correspond to different c






35. 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






36. 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






37. 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






38. 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






39. The north pole of one magnet attracts the ___________ of another - but like poles repel each other - Either pole can attract unmagnetized iron objects






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






41. 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






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






43. When the electrons flow in one direction - the flowing electricity is referred to as current - An electric current is simply a flow of electrons through a wire






44. Made up of molecules with the composition H20 - One _____ molecule is built from two atoms of hydrogen and one atom of oxygen






45. This is the one factor that will be intentionally changed during the experiment. Examples include changing the amount of salt that is added to water to determine its freezing point; introducing different soil types in germinating seeds; and changing






46. Collect Data (results) - Analyze the data to look for patterns or trends - Record measurements and observations during the experiment - Present data in a graph - table - or another form






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






48. Arranges all of the known elements from left to right and top to bottom in order of increasing atomic number - and they generally coincide with their increasing atomic mass






49. The characteristics that makes up the physical composition of a substance - Include color - form - electrical conductivity - and density






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