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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. Displayed by permanent magnets and around electric currents






2. Heat can be converted to motion - and motion can produce heat






3. 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






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






5. 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






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

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

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8. Hard matter is ______ with soft matter






9. The law of inertia - Without outside forces (such as gravity or friction) - an object at rest will remain at rest - while an object in motion will never stop or deviate from its course

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10. The branches of natural sciences that study the nature and properties of energy and non - living matter






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






12. Mechanical advantage of an inclined plane is the ______________ it spans - The inclined plane allows the same work to be done with a smaller force exerted over a greater distance Example: ramp






13. 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






14. Formed by the chemical combination of two or more elements in a fixed ratio Example: water






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






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






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






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






19. Also generates a magnetic field - demonstrating an intimate connection between electricity and magnetism






20. Solids - liquids - and gases






21. When foreign substances are dissolved in water it creates a solution - Solutions with a pH of less than 7.0 are said to be acidic - and solutions with a pH greater than 7.0 are said to be basic or alkaline






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






23. 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 -






24. The rate of change of velocity with time a = ?v/?t (acceleration = change of velocity/change of time)






25. 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






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






27. 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






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






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






30. 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






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






32. Major greenhouse gases






33. 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






34. Scratch hardness - indentation hardness - and rebound hardness






35. Occurs when light travels only in straight lines - An object is visible because light is reflected from the object into our eyes






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






37. 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






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

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39. The shortest wavelength; red is the longest






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






41. 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






42. 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






43. The rate of change of position with time v = ?d/?t (velocity = change of distance/change of time)






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






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






46. 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






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






48. 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






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






50. 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







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Can you answer 50 questions in 15 minutes?


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