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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. 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






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






3. 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






4. 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






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






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






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






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






9. Heat tends to move from a high - temperature region to a low- temperature region - This heat transfer may occur by the mechanisms of conduction - radiation - and convection






10. The shortest wavelength; red is the longest






11. 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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12. 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






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






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






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






16. A flat surface whose endpoints are at different heights - resulting in a slope - By moving an object up an ___________ rather than completely vertically - the amount of force required is reduced - at the expense of increasing the distance the object






17. 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






18. 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






19. 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 -






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






21. Obtained by two different means - fission and fusion






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






23. 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






24. 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






25. 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






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






27. 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






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






29. 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






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






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






32. 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






33. The number of waves produced in a given time






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






35. Major greenhouse gases






36. Top: Output force (resistance) Middle: Input force (effort) End: Fulcrum Examples: baseball bat - fishing pole - shovel






37. 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






38. 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






39. 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






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






41. A compressed gas pushes out __________ in all directions






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






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






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






45. 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






46. Energy can be neither created nor destroy






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






48. 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






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






50. 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