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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. State the specific plan on how to test the hypothesis - Create a written - step - by - step procedure - Determine the variables (any factor that can change in an experiment)






2. 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






3. Energy taken from finite resources that will eventually dwindle - becoming too expensive or too environmentally damaging to retrieve - Fossil fuels include coal - petroleum - and natural gas - Fossil fuels are limited and nonrenewable and contribute






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






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






6. 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






7. 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






8. 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 -






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






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






11. 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






12. 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






13. Major greenhouse gases






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






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






17. 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






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






19. Can multiply force or distance depending on the location of the fulcrum End: Output force Middle: Fulcrum Other end: Input force Examples: seesaws - scissors - pliers






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






21. 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






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






23. 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






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. 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






26. 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






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






28. The shortest wavelength; red is the longest






29. 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






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






31. Refers to various properties of matter in the solid phase that give it a high resistance to its shape changing when force is applied






32. The north pole of one magnet attracts the ___________ of another - but like poles repel each other - Either pole can attract unmagnetized iron objects






33. 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






34. 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






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






36. 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






37. 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






38. 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






39. 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






40. Hard matter is ______ with soft matter






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. 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






43. 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)






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






45. 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.






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






47. 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






48. Solids - liquids - and gases






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






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