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






2. The shortest wavelength; red is the longest






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






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






5. The number of protons of that element - No two elements have the same atomic number - Elements in the periodic table are arranged in order of increasing atomic number






6. 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






7. Hard matter is ______ with soft matter






8. 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.






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






10. 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






11. A natural phenomenon by which objects with mass attract one another - Compels dispersed matter to coalesce - and thus it accounts for the very existence of the earth - the sun - and most of the macroscopic objects in the universe - Responsible for ke






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. 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






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






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






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






17. 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






18. 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






19. 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






20. 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






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






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






23. As temperature increases (at a fixed pressure) - so does volume Examples: air - helium - steam

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






25. 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






26. 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?






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






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






29. 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






30. 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






31. 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






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






33. A difference between two temperatures or an uncertainty






34. 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)






35. 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






36. 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 -






37. Scratch hardness - indentation hardness - and rebound hardness






38. 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






39. 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






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






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






42. The rate of change of position with time v = ?d/?t (velocity = change of distance/change of time)






43. 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






44. 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






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






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






47. 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)






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






49. After a rainstorm - the air is full of tiny drops of water - Each drop acts as a prism - splitting the light into the colors of the spectrum






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