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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. Results when electrical charges buildup or increase on the surface of a material - here - there is no current flowing as would be found in electrical outlets - When certain materials are rubbed together - electrons can move from one object to the oth






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






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






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






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






6. 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






7. 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






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






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






10. 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






11. A gas - discharge lamp that uses electricity to excite mercury vapor - The excited mercury atoms produce short - wave ultraviolet light that then causes a phosphor to fluoresce - producing visible light






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






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






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






15. 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






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






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

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18. 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






19. 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






20. 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






21. 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






22. 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






23. A temperature interval of one degree F is an interval of 5/9 of a degree C - The Fahrenheit and Celsius scales coincide at -40






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






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






26. 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)






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






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






29. The shortest wavelength; red is the longest






30. The number of waves produced in a given time






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






32. Scratch hardness - indentation hardness - and rebound hardness






33. The terms gravitation and gravity are mostly interchangeable in everyday use - refers specifically to the gravitational force exerted by the earth on objects in its vicinity






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






35. Made by combining two or more different materials without a chemical reaction occurring (the objects do not bond together) - They are the product of a mechanical blending or mixing of chemical substances - Either homogeneous or heterogeneous






36. 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






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






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






39. Temperature scale -0






40. 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






41. The mechanical advantage of a wedge is given by the ______________________ - Although a short wedge with a wide angle may do a job faster - it requires more force than a long wedge with a narrow angle






42. 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)






43. Obtained by two different means - fission and fusion






44. 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






45. 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






46. 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






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






48. 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






49. 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






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