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






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






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






5. 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






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






7. 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






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






9. 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 -






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






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






12. However - a fluorescent lamp converts electrical power into useful light more __________ than an incandescent lamp; lower energy costs offset the higher initial cost of the lamp






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






14. 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






15. List the specific materials to be used in the experiment - This allows for replication of the experiment






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






17. 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






18. 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






19. 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






20. 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






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






22. 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






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






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






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






26. 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






27. Other indicators of the ________ of an acid are that when acids react with metals - hydrogen gas is released causing bases to feel soapy when touched






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






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






30. Major greenhouse gases






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






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






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






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






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






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






37. The path or circuit an electric current flows - Electricity requires a complete path for the electrons to flow - If the path is broken and there are not alternative paths for the electrons to follow - the electrons will not move - make it possible fo






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






39. 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






40. 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






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






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






43. 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






44. 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






45. 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






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






47. 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






48. Hard matter is ______ with soft matter






49. 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






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