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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. 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






2. Transferring of heat by the circulating motion of particles (in liquid or gas) - Occurs when hot air is less dense than cool air and therefore rises - When the heat moves in a circular pattern - convection currents are formed - Heat can be transferre






3. 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






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






5. 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






6. Some of the light is reflected - the angle of reflection being equal to the...






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






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






9. 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






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






11. 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






12. A compressed gas pushes out __________ in all directions






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






14. 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






15. 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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16. 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






17. A hypothesis is an attempt to answer the question or predict the outcome - - A hypothesis is a possible explanation for a set of observations






18. Major greenhouse gases






19. 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






20. 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






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






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






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






24. 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






25. 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






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






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






28. Scratch hardness - indentation hardness - and rebound hardness






29. A first - class lever - In its simplest form it consists of a rod attached to a wheel so that their movements are coupled when one of the parts is turned






30. The shortest wavelength; red is the longest






31. A change of one substance into a different substance - Occurs whenever compounds are formed or decomposed - During this reaction - there is a rearrangement of atoms that makes or breaks chemical bonds - This change is usually not reversible - unlike






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






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






34. 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






35. Hard matter is ______ with soft matter






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






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. A mechanical device that changes the direction or magnitude of a force - The simplest mechanisms that use mechanical advantage to multiply force - Uses a single applied force to do work against a single load force






39. 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)






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






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






42. 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






43. 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






44. 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






45. Energy generated from natural sources (such as sunlight - wind - rain - tides - and geothermal heat) which are renewable (naturally replenished)






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






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






48. Makes it possible for some elements and compounds to transition from a solid to gas phase without becoming a liquid Example: a block of dry ice (CO2) - which will turn into a gas at room temperature






49. For every action (applied force) - there is an equal and opposite reaction

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50. A source of electric light that works by incandescence - An electric current passes through a thin filament - heating it until it produces light - The enclosing glass bulb prevents the oxygen in the air from reaching the hot filament - which otherwis