Physics Quiz 8 (25 MCQs)

Quiz Instructions:

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1. On a stationary sail boat, air is blown from a fan attached to the boat. The boat

2. A boy walks far 5km along a direction 530 West of North. Which of the following journeys would result in the same displacement?

3. What happens to the universal gravitational constant if the masses of the two objects interacting gravitationally are doubled?

4. As the value of r increases, what happens to the value of F?

5. It is the path for transmitting electric current.

6. Which of the following is most likely to be the mass of a supermassive black hole?

7. An object takes a curved path when thrown or launched near the surface of the Earth? The curved path is called _____

8. When light incident on a prism separates into a spectrum, we call the process

9. The electric current flows only in one direction.

10. What is the impulse if the force is 55 N to the west for 0.55 s?

11. The Period of revolution round the sun is maximum by which among the following planets?

12. Forces can be added together only if they are?

13. A 2 C charge experiences a force of 40 N when put at a certain location in space. The electric field at that location is..

14. How can you increase the acceleration of an object?

15. Sir C.V. Raman was awarded Nobel Prize for his work connected with which of the following phenomenon of radiation?

16. Which of the following is the slope of velocity vs time graph?

17. The electric field in a certain region of space is 30 N/C. What is the force on a 2 C charge in that space?

18. The desire effect of using winglets on an aircraft's wingtips is to

19. What is the unit of measurement used for current?

20. What would a negative value for Fe mean?

21. A 0.12-m-radius grinding wheel takes 5.5 s to speed up from 2.0 rad/s to 11.0 rad/s. What is the wheel's average angular acceleration?

22. What is a non-contact force?

23. How does a scientist reduce the frequency of human error and minimize a lack of accuracy?

24. What type of image is formed when an object is placed at a distance of 1.5 focal lengths from a convex mirror?

25. If the force acting on a charged particle of (8x10-6C) due to an electric field is 4 N, the electric field in (N/C) is