ABEKa Physical Science Test 12 Exam Questions
and Correct
1. 33.8 correct answer: The sum of 9.6 and 24.231 is 33.831. What is this sum expressed in correct
significant digits?
2. first law of motion correct answer: law states that the velocity of an object does not change
unless the object is acted upon by an external force
3. Charles's law correct answer: law states that if the pressure of a gas is constant, the gas's volume
and temperature are directly proportional
4. potential energy correct answer: energy associated with the position of an object and the
forces acting upon it
5. conduction correct answer: the process by which heat flows through materials and between
objects in direct contact
6. amplitude correct answer: the maximum distance that particles are displaced by a wave
7. intensity correct answer: the strength of a sound wave
8. white correct answer: when all colors of visible light are mixed
9. gamma rays correct answer: extremely high-frequency electromagnetic waves produced by
reactions in the nucleus of an atom
10. iridescence correct answer: when an object's colors are produced by interference and
depend on the viewing angle
11. Lewis structure correct answer: a diagram showing the locations of all the atoms and
valence electrons in a molecule
12. preciptitate correct answer: an insoluble substance that forms (falls out)during a
chemical reaction
13. catalyst correct answer: a substance that alters the rate of a chemical reaction
without being permanently changed or consumed in the reaction
14. diode correct answer: a simple vacuum tube that uses a negatively charged filament and
a positively charged plate to allow current flow in only one direction
15. transformer correct answer: a device that increases or decreases the voltage of
alternating current using electromagnetic induction
16. fluorescent lamp correct answer: type of lamp produces light by passing an electric
current through a long tube fille with a low-pressure mixture of mercury vapor and argon
17. diamagnetic correct answer: a substance with no unpaired electrons
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, 18. law of electric force correct answer: law states that the strength of the attraction nor
repulsion between 2 charged objects is directly related to the strength of the charges and inversely
related to the square of the distance between them
19. time and length correct answer: According to Einstein's general theory of relativity, what
quantities are attected by gravity?
20. parallel correct answer: a type of circuit arrangement with current divided among its
separate branches
21. loudspeaker correct answer: a device that converts pulses of electricity into sound waves
22. ex nihilo correct answer: "out of nothing"
23. capacitor correct answer: any device used to store an electric charge
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7
and Correct
1. 33.8 correct answer: The sum of 9.6 and 24.231 is 33.831. What is this sum expressed in correct
significant digits?
2. first law of motion correct answer: law states that the velocity of an object does not change
unless the object is acted upon by an external force
3. Charles's law correct answer: law states that if the pressure of a gas is constant, the gas's volume
and temperature are directly proportional
4. potential energy correct answer: energy associated with the position of an object and the
forces acting upon it
5. conduction correct answer: the process by which heat flows through materials and between
objects in direct contact
6. amplitude correct answer: the maximum distance that particles are displaced by a wave
7. intensity correct answer: the strength of a sound wave
8. white correct answer: when all colors of visible light are mixed
9. gamma rays correct answer: extremely high-frequency electromagnetic waves produced by
reactions in the nucleus of an atom
10. iridescence correct answer: when an object's colors are produced by interference and
depend on the viewing angle
11. Lewis structure correct answer: a diagram showing the locations of all the atoms and
valence electrons in a molecule
12. preciptitate correct answer: an insoluble substance that forms (falls out)during a
chemical reaction
13. catalyst correct answer: a substance that alters the rate of a chemical reaction
without being permanently changed or consumed in the reaction
14. diode correct answer: a simple vacuum tube that uses a negatively charged filament and
a positively charged plate to allow current flow in only one direction
15. transformer correct answer: a device that increases or decreases the voltage of
alternating current using electromagnetic induction
16. fluorescent lamp correct answer: type of lamp produces light by passing an electric
current through a long tube fille with a low-pressure mixture of mercury vapor and argon
17. diamagnetic correct answer: a substance with no unpaired electrons
1/
7
, 18. law of electric force correct answer: law states that the strength of the attraction nor
repulsion between 2 charged objects is directly related to the strength of the charges and inversely
related to the square of the distance between them
19. time and length correct answer: According to Einstein's general theory of relativity, what
quantities are attected by gravity?
20. parallel correct answer: a type of circuit arrangement with current divided among its
separate branches
21. loudspeaker correct answer: a device that converts pulses of electricity into sound waves
22. ex nihilo correct answer: "out of nothing"
23. capacitor correct answer: any device used to store an electric charge
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7
