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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. The top of a wave's 'hill'






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






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






4. 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






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






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






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






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






9. Opposite process of nuclear fission - Yields energy when very light nuclei unite to a heavier nucleus - Stars (including the sun) derive their energy from nuclear fusion






10. 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






11. Rates minerals and puts them on a scale from 1 to 10 (1 is the softest and 10 is the hardest) determined by the ability of a harder mineral to scratch a softer mineral - Talc is at 1 and diamond is at 10

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12. 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






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






14. The beginning of scientific wisdom - The physicist's first reaction to a new idea is to ask: Can it be measured? Can I describe it with numbers?






15. 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






16. Are inclined planes - Can convert a rotational force (torque) to a linear force - and vice versa - The ratio of threading determines the mechanical advantage of the machine - More threading increases the mechanical advantage






17. 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






18. 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






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






20. 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






21. Composed of only one atom and cannot be separated into different substances except in some instances by radioactive decay or by nuclear reactions






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






23. A difference between two temperatures or an uncertainty






24. Solar - Chemical - Electrical - Magnetic - Nuclear - Sound - Light - Electromagnetic - Mechanical (motion)






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






26. The number of waves produced in a given time






27. 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






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






29. 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






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






31. 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






32. A degree on the Fahrenheit scale is 1/180th of the interval between the __________ and boiling point






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






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






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






36. 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






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






38. For smooth surfaces - the angle at which light is incident on the surface equals the angle at which it is reflected






39. Energy can be neither created nor destroy






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






41. The shortest wavelength; red is the longest






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






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






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






45. 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






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






47. 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






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






49. 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






50. 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.