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Physics Quiz 10 (25 MCQs)

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1. Mary is 14 years, 1 month and 20.7 days old today. How many months Mary is alive up until now? Use:1 year = 12 months, and 1 month = 30 days
2. It is the velocity tangent to the circular path.
3. Calculate the force exerted between two charged objects separated by a distance of 0.6 m. One object has a charge of-5 C and the other has a charge of +2.0 C.
4. How many centimeters are there in 2 meters?
5. Solar cell converts
6. Choke is used to_____
7. Massive stars that are not quite large enough to turn into a black hole will turn into what when they collapse?
8. Which of the following scientist discovered the projectile motion?
9. Metals are good conductors of electricity because
10. What is the unit of mass?
11. Which of the following relationships of quantities is NOT true?
12. When the temperature of a strip of iron is increased, the length of the strip
13. The critical angle of water when refracted angle is 90 $^ \circ$ and refractive index for water and air is 1.33 and 1 is
14. What type of force influences the projectiles to travel with a parabolic trajectory?
15. Household circuits are wired in _____
16. According to Newton's third law of motion, when a hammer strikes and exerts force on a nail, the nail?
17. What does gravity do to time?
18. Resistance measures how well a material or object conducts
19. Which of the following is the best example of work being done.
20. A place or object used for comparison to determine if another object is in motion is called a
21. Solve for x:38/x = 5(3) + 4
22. It is a measure of the hotness or coldness of an object that is proportional to the average kinetic energy of the molecules composing the object.
23. The momentum of an object is in the same direction as its _____
24. The rate at which falling objects in free-fall gain velocity on earth is
25. A repulsive force exists between which two particles?
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