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Physics Quiz 20 (25 MCQs)

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1. Hot Liquids flow faster than cold liquids because of
2. Combinations of two or more pulleys working together reduce the force needed to lift a load
3. Newton explained the relationship between crash forces and inertia in his _____ Law of Motion.
4. Which aspect of a black hole is NOT infinite?
5. Someone safely orbiting a black hole is watching you fall into a black hole, what do they see?
6. It is a law that applies only if the incident light passing through the analyzer is nearly polarized.
7. UNIT OF TEMPERATURE
8. In order to be _____ forces, their effects must cancel each other out and not cause a change in an object's motion.
9. A 2-C charge and 4-C charge attract each other with 10 N of force. How much will a 2-C charge and 8-C charge attract each other when placed the same distance apart?
10. On a graph showing distance versus time, a horizontal line represents an object that is
11. Which of the following is NOT true about a temperature that was read from a thermometer dipped in Styrofoam with cold water?
12. Large astronomical telescopes always use as objective
13. How many inches is 9'10" ?
14. Which of the following is the vertical motion displacement of the projectile?
15. Constant acceleration means the _____ stays the same, while the _____ changes per each time interval
16. Which one of the following has the same unit as the rate of change of momentum?
17. The Coulomb is the unit for
18. Give the equivalent of unit of the give units1 inch
19. A machine does 80 J of work in 15 seconds. How much power is that?
20. The SI base unit for time is
21. Rev/min is equivalent to which of the following?
22. Sound travels at the fastest speed in
23. When the distances become double?
24. Parsec is a unit of_____
25. Consider two vectors both directed to the east and with a magnitude of 10 m. What will be the resultant vector when they are added?
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