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. The agent most widely and most consistently at work changing the appearance of the Earth's surface






2. 100x the base unit






3. Temporary magnets that lose their magnetism when electric current is removed






4. Stored mechanical - Nuclear - Chemical - gravitational






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






6. 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?






7. Measures the amount of matter in an object






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






9. # of protons + # of neutrons






10. Removal of static electricity by conduction






11. 10x the base unit






12. Formed when one or more electrons are transferred from one atom to another. Transfer of electrons happens when metals & non - metals bond.






13. An isotope has a different number of...






14. Gram is the base unit of...






15. Harder - denser - have higher melting points & are chemically active.






16. (of a chemical reaction or compound) occurring or formed with absorption of heat. Absorbs energy from its surroundings.






17. Electrons in the outermost energy level; they are involved in bond formation






18. The acceleration of an object depends on the mass of the object and the amount of force applied.






19. 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.






20. Is the path along which electrons flow






21. Liter is the base unit of...






22. Heat energy that is transferred into or out of a system






23. Where are protons an neutrons located?






24. Pressure is measures in a unit called






25. The center of the atom.






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






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






28. An electric circut with a single path






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






30. It is the first element in group 13 - is a poor conductor of electricity at low temperature - however if temperature increases it will become a good conductor.






31. Describes the force of friction of 2 surfaces that are in contact but do not have any motion relative to eachother.






32. Is the transfer of energy by waves such as the electromagnetic waves emitted by stars the sun warms the earth by emitting radiant energy.






33. 2 or more substances combine to form a compound EX. A+B -> AB






34. Polar molecules






35. Reflects the light in one direction






36. Lacking affinity for water. Repels water. Non - polar






37. The relationship between voltage - current - and resistance - V=IR






38. Inclined plane - lever - wheel & axle - pulley.






39. Decibels






40. Potential & Kinetic






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






42. A boulder is sitting at the edge of the cliff it has which type of energy?






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






44. Parts of 2 compounds replace each other. Ex. Switch partners AX + BY -> AY + BX






45. 1/1000 the base unit






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






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






48. It is second element in group 14 - semi - conductor. Sand is made of silicon - it is also used to manufacture glass and cement.






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






50. The state of two or more objects or substances in thermal contact when they have reached a common temperature - EX. the affects after a hot cup of coffee meeting the desk temperature.







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