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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. 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






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






3. Some gases can transition directly to a solid Example: the formation of frost






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






5. A form of energy that can be used to produce sound - light - heat - and power - it exists where the number of negative electrons does not precisely equal the number of positive protons - Electrons are held in the atom by an electrical force and have






6. 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






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






8. 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






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. 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






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






12. 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






13. 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






14. A constant change in the location of a body - Described by stating an object's position - velocity and acceleration






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






16. 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






17. As of 2006 - the table contains _____ chemical elements whose discoveries have been confirmed - 94 are naturally found on the earth - and the rest are synthetic elements that have been produced artificially in particle accelerators






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






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






20. 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






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






22. 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






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






24. An electric current also generates a magnetic field - demonstrating an intimate connection between electricity and magnetism - Recent work has united these phenomena - as well as light - into electromagnetic radiation






25. 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






26. Explains why objects appear bent as light passes from one transparent object into another - Light travels at different speeds through different objects (faster through air than through water or glass) - Responsible for rainbows and for the splitting






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






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






29. Transferring of heat by the circulating motion of particles (in liquid or gas) - Occurs when hot air is less dense than cool air and therefore rises - When the heat moves in a circular pattern - convection currents are formed - Heat can be transferre






30. These are the factors that are kept exactly the same in an experiment. In an experiment on plant growth - the variables could include amount of sunlight - type of soil - amount of water - and type of plant. Only one factor at a time is changed - whil






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






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






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






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






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






36. 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






37. A compressed gas pushes out __________ in all directions






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






39. Major greenhouse gases






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

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

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






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






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






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






46. The amount of matter in a chemical substance - In everyday usage - is commonly confused with weight






47. Metals account for the vast majority of the elements in the periodic table - Show a wide range of chemical and physical properties - Most metals are good conductors of heat and electricity - and some - like iron and cobalt - are magnetic - Many metal






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






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






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







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