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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. 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






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






3. 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.






4. A compound composed of one atom of sodium and one atom of chlorine (NaCl - sodium chloride)






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

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6. The path or circuit an electric current flows - Electricity requires a complete path for the electrons to flow - If the path is broken and there are not alternative paths for the electrons to follow - the electrons will not move - make it possible fo






7. Symbol: He Protons: 2 Neutrons: 2 Mass: 4






8. 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






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






10. Example of chemical change - Iron chemically reacts with air and water to form rust (ferrous oxide) and is unable to change back to iron






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






12. 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






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






14. Designed to separate substances in a liquid through vaporization - Usually carried out in an apparatus called a still - which requires a boiler - a condenser - and a receiver Example: Purify ocean water






15. 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






16. 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






17. Obtained by two different means - fission and fusion






18. The shortest wavelength; red is the longest






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






20. Symbol: H Protons: 1 Neutrons: 0 Mass: 1






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






22. Energy can be neither created nor destroy






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






24. 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






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

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






27. 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






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






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. Temperature scale -0






31. Rates minerals and puts them on a scale from 1 to 10 (1 is the softest and 10 is the hardest) determined by the ability of a harder mineral to scratch a softer mineral - Talc is at 1 and diamond is at 10

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






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






34. 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






35. 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






36. 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






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






38. 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






39. The number of waves produced in a given time






40. 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






41. 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






42. A difference between two temperatures or an uncertainty






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






44. 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






45. 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






46. 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






47. 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






48. Temperature scale named after the German physicist Daniel Gabriel Fahrenheit (1686-1736) - who proposed it in 1724 - On this scale - the freezing point of water is 32






49. Some of the light is reflected - the angle of reflection being equal to the...






50. 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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