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. A nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy






2. Alkali Metals are the most _____________






3. 2 or more substances combine to form a compound EX. A+B -> AB






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






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






6. Most directly involved with controlling levels of sugar in blood






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






8. The mechanical energy that a body has by virtue of its position Ex. Stored energy -






9. Mass of the substance contained per unit of volume






10. Used in electrical devices that have to function at temperatures too high for metals.






11. When measuring the volume of water in a graduated cylinder where does one read the measurement?






12. 1. All are solids having the appearance of metals & non - metals. 2. All are white or gray - but not shiny 3. Conduct electricity - but not as well as metals.






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






14. Are small positively charged particles






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






16. What quantity of oxygen - O2 - contains very nearly the same number of molecules as 36.0 grams of water - H2O?






17. Electrons that can accept energy from outside sources and move farther away from the nucleus






18. The center of the atom.






19. The same pathogen must be found in every person with the same disease - the pathogen must be isolated & grown in a culture - when the organism is re - introduced in an experimental animal - that animal should develop the same disease originally seen

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


20. Average mass of various isotopes of the element.






21. Current is measured with a device called...






22. (physics) a process that alters the energy or structure or composition of atomic nuclei - When a reaction involves the nucleus - elements become different thus is called a nuclear reaction.






23. The number of electrons per second that flow past a point in a circut.






24. Two or more simple machines working together EX. wheelbarrow it uses level - wheel & axle.






25. The interference that occurs when two waves combine to make a wave with a larger amplitude






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






27. The principle of conservation of energy: Energy can be transferred and transformed - but it cannot be created or destroyed.






28. They form only over warm oceans






29. A buret is used to deliver solution in precisely - measured - variable volumes. deliver one reactant until the precise end point of the reaction is reached.






30. Causes motion






31. Gram is the base unit of...






32. Are used in the treatment of cancer b/c they can kill cancer cells. However - if powerful enough they can kill healthy cells.






33. Solids - gasses - and 1 liquid (Bromine)






34. Measure of the earth's pull






35. The buoyant force on an object is equal to the weight of the fluid displaced by the object






36. That for a fixed amount of gas at a constant temperature - the volume of a gas increases as its pressure decreases






37. A wave in which the particles move parallel to the path of the wave






38. Is formed when 2 atoms share electrons - covalent bonding happens among non - metals.






39. Polar molecules






40. Carbon atom - atomic number 6 - atomic mass 11






41. 1. Like charges repel one another - 2. Opposite charges attract each other - 3. charge is considered a neutral object has no net charge.






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






43. Nuclear fission - Nuclear Fusion






44. The force of attraction between two objects. Gravity exists not only on earth - but also between planets as well as in black wholes






45. The centripetal force is provided by the high banking of the curved road & by friction between the wheels & the road.






46. Is a simple device used to indicate the existence of a positive or negative charge.






47. The ability of the material to oppose the flow of electrons through it all






48. Stored mechanical - Nuclear - Chemical - gravitational






49. What are the # of protons in the nucleus of an atom called?






50. Is the path along which electrons flow







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests