Test your basic knowledge |

Praxis General Science

Subjects : praxis, 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. Electrons that can accept energy from outside sources and move farther away from the nucleus






2. Series circut - Parallel circut






3. Change in the apparent frequency of a wave as observer and source move toward or away from each other






4. The formula F=M/A is a shorthand force equals mass over acceleration. An object will not move unless the force is strong enough to move the mass.






5. An electric circut with a single path






6. The more energy the electrons have






7. You see your reflection






8. Removal of static electricity by conduction






9. Atoms of the same element that have different numbers of neutrons






10. A unit of heat equal to the amount of heat required to raise the temperature of one kilogram of water by one degree at one atmosphere pressure. used by nutritionists to characterize the energy - producing potential in food






11. P1/T1=P2/T2. States that the pressure of a fixed amount of gas in a fixed volume is proportional to its temperature.

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


12. SI unit of temperature; indicates number of units above absolute zero. To go from Celsius to Kelvin add 273. To go from Kelvin to Celsius subtract 273.






13. The object is further than one focal length from the lens






14. Are small positively charged particles






15. Solid has a definite shape and volume - Liquid has definite volume - but no shape - Gas has no shape of volume.






16. The branch of physics that deals with static electricity - study of stationary electric charges.






17. Uses the transfer of heat from one substance to another to determine the specific heat of the substance.






18. Atoms of the same element that have different numbers of neutrons






19. Relates pressure & temp. and temp and volume.






20. Organic molecules that are composed of only carbon and hydrogen.






21. Is an atom that has all of its electrons in the lowest possible energy levels






22. The center of the atom.






23. A circut with two or more resistors where the electricity has more than one path to travel






24. Clustered regions of aligned magnetic atoms. When these regions are aligned with one another - the substance containing them is a magnet.






25. Atoms with an equal # of protons and electrons.






26. Is the study of the relationship between motion & the forces affecting motion.






27. 8 electrons






28. Experiments may not be done on...






29. Measures the amount of matter in an object






30. Is done on an object when an applied force moves across a distance.






31. Uses the principles of capillary action to separate substances such as plant pigments molecules of a larger size will migrate up the paper more quickly produce lines of pigment. - a process used for separating mixtures by virtue of differences in abs






32. Higher because it has higher apparent frequency.






33. A gelatinous sample of material from a previously unexplored marine environment is thought to be living or to be composed of recently living material. Which of the following would most clearly confirm that the material has a biological origin?






34. A wave in which the particles of the medium move perpendicularly to the direction the wave is traveling






35. Decibels






36. The energy released by a nuclear reaction - binding energy is released when the nuclei of atoms are split apart in a nuclear reaction this binding energy is called nuclear energy.






37. The sum of the protons and neutrons






38. The amount of energy required to change a substance from the solid phase to the liquid phase at its melting point






39. (physics) the capacity of a physical system to do work - or supply heat.






40. Rotate at very high speed in order to separate the liquids from the solids. The more dense part of the solution will sediment at the bottom of the test tube. while the lighter material will stay on top. Ex. centrifuge is used to separate blood from b






41. Specific gravity is the ratio based on...






42. Negatively charged particles found outside the nucleus






43. Heat transferred by direct contact






44. Submarines - diving weighting system - naval architecture - Flotation - Buoyancy compensator






45. Elements in the middle of the periodic table - in groups 3-12.






46. The amount of energy required for the liquid at its boiling point to become a gas






47. Making and breaking of chemical bonds between atoms bonds involve only the outer electrons & do not effect the nucleus






48. Mass & weight are not the ____ quality






49. Change from gas to liquid






50. Compounds that speed up chemical reactions. Sometimes without Catalysts reactions cant occur.