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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. 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






2. 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






3. Makes it possible for some elements and compounds to transition from a solid to gas phase without becoming a liquid Example: a block of dry ice (CO2) - which will turn into a gas at room temperature






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






5. 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






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






7. Obtained by two different means - fission and fusion






8. 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






9. 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






10. Hard matter is ______ with soft matter






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






12. Atoms are made up of several tiny parts - At the center of an atom is a core called the __________ - which is made up of particles called protons and neutrons






13. Other indicators of the ________ of an acid are that when acids react with metals - hydrogen gas is released causing bases to feel soapy when touched






14. The earth's __________ orients the iron needles of navigational compasses






15. Take on the shape of their containers - yet cannot be compressed to any significant extent - The volume is constant unless evaporation is occurring






16. State the specific plan on how to test the hypothesis - Create a written - step - by - step procedure - Determine the variables (any factor that can change in an experiment)






17. The beginning of scientific wisdom - The physicist's first reaction to a new idea is to ask: Can it be measured? Can I describe it with numbers?






18. Symbol: Fe Protons: 26 Neutrons: 30 Mass 56






19. 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






20. Major greenhouse gases






21. A first - class lever - In its simplest form it consists of a rod attached to a wheel so that their movements are coupled when one of the parts is turned






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






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






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






25. 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






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






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






28. 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






29. 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






30. The number of waves produced in a given time






31. 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






32. Lever - Pulley - Inclined plane - Screw - Wedge - Wheel and axle






33. 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 -






34. A conclusion is a summary and an explanation of the results of an experiment - Does the data support the hypothesis? If not - a new hypothesis can be formed






35. Relies on the the first law - The acceleration of an object is proportional to the force applied (the more force - the more acceleration)

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36. 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






37. Solids - liquids - and gases






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






39. Move around the nucleus in electron clouds - have a negative charge - and they are attracted to the positively charged protons in the nucleus - This attraction keeps the electrons in orbit around the nucleus






40. 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






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






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






43. A degree on the Fahrenheit scale is 1/180th of the interval between the __________ and boiling point






44. For a homogeneous object - density is determined by dividing the mass by the volume (D = M/V) The mass is normally measured with an appropriate scale or balance - The volume may be measured directly (from the geometry of the object) or by the displac






45. A water - soluble mixture of different dyes extracted from lichens - It is often absorbed onto filter paper






46. The shortest wavelength; red is the longest






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






48. The ability to perform work - _______ transformations result when a change of form takes place - All forms of ________ can be converted into other forms






49. Elements with similar properties fall into the same vertical columns on the preriodic table to form _____ - Properties of elements change greatly across any one row (period)






50. 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