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






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






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






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






5. This is the variable that changes as a result of the manipulated variable. The dependent variable is observed and measured. Examples include determining how long various saltwater solutions take to freeze - and determining the number of cycles a pend






6. 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






7. Electricity flows easily through materials that conduct electricity - Include metals such as aluminum (Al) - iron (Fe) - nickel (Ni) - silver (Ag) - and gold (Au)






8. 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






9. 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)






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






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






12. 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






13. The shortest wavelength; red is the longest






14. 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






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






16. Scratch hardness - indentation hardness - and rebound hardness






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






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






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






20. 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






21. 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






22. 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






23. 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






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






25. 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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26. 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






27. List the specific materials to be used in the experiment - This allows for replication of the experiment






28. 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






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






30. Transition of heat through a medium - From a region of higher temperature to a region of lower temperature - Heat energy is transferred from one material to another by direct contact - Metals are good conductors of heat






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






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






33. 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






34. 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






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






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






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






38. 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






39. Displayed by permanent magnets and around electric currents






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






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






42. 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






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






44. 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.






45. The sum of the protons and neutrons gives an ______________ for the element






46. Resistance to fracture or plastic (permanent) deformation due to friction from a sharp object






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. 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






49. 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






50. 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







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