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Physics Quiz 22 (25 MCQs)

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1. If a red-green flag is seen in green light it appears to be of which of the following colour?
2. What do all waves transfer?
3. A useful method of expressing very small or very large numbers is
4. Some capacitors consist of two parallel plates separated by an insulating material called the _____
5. What is the unit for gravitational field strength?
6. The number of significant figures in 10001 COVID-19 cases is _____
7. Curved mirror whose reflecting surface is the inner part is
8. A property that can be measured by a number.
9. Supersonic plane fly with the speed
10. It states that the angle of incidence is equal to the angle of reflection.
11. A golf ball starts with a speed of 2 m/s and slows at a constant rate of 0.5 m/s2, what is its velocity after 2 s?
12. The basic function of an electromotive force in a circuit is to do which of the following?
13. What is the perimeter of a rectangular room that has a length of 5.1 m and a width that is 2 m less than the length?
14. Which of the following pairs has the same dimensions?
15. Covert 300C to 0F
16. What is the maximum height reached by a ball thrown into the air with initial velocity of 18 m/s at an angle of 25 degree?
17. Which theory explains the geometric description of gravity as a curvature of spacetime around massive bodies?
18. The pressure of a fluid depends on all of the following, except
19. One meter is _____ cm.
20. A ray of light traveling from air into crown glass strikes the surface at an angle of 30 degrees. What is the angle of refraction? (air n=1, crown glass n=1.532)
21. It is the amount of heat needed to raise the temperature of 1 kg of a substance by 1 $^ \circ$C.
22. A 5 C and 8 C charge give off a force of 2.5 x 109 N. What is the distance between them?
23. What is the unit for frequency?
24. You apply a force of? to a wheelbarrow and moved it 6 m resulting in 48 J of work. How much force did you do on the dresser?
25. Which of the following is the most likely to be the mass of a stellar-mass black hole?
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