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Mdcat-past-papers - DUHS - Physics Quiz

Filters: Board: DUHS | Subject: Physics |
21. In the projectile motion, the acceleration in the horizontal direction:



22. A javelin is thrown by Arshad Nadeem at projection angle of 45° with initial velocity of 30 m/s, the range of the javelin will be: (g = 10 m/s²)



23. A body of mass 4kg is moving in a circle of radius 2m. If the body moves round a complete circle, what is the work done by the body?



24. A fisherman lifts a fish of mass 250g from rest through a vertical height of 1.8m. The fish gains a speed of 1.1 m/s. What is the energy gained by the fish?



25. Two bodies of masses 10kg and 40kg are dropped from the same height at the same time. Value of which of the following remains the same during the motion of the two bodies?



26. The rate of doing work is zero, when the angle θ between force and velocity is:



27. 1 J/s is equal to:



28. If mass and speed of object double, kinetic energy becomes:



29. A wheel of bike rotates from rest and achieves 6.28 radian/s in 2 seconds. What will be its angular acceleration?



30. The ratio of linear velocity and radius equals to:



31. A cyclist moving on a circular track skids because:



32. Every particle of a rotating disc moves with:



33. A body is moving with constant speed. With radius of circle 'r' and time period 'T' the centripetal acceleration is given by:



34. Which of the following results in production of centripetal acceleration in the body?



35. The most appropriate mathematical expression representing SHM is:



36. If the given spring of spring constant K is cut into three identical segments, the spring constant of each segment is:



37. In vibratory motion, the maximum displacement on either side of equilibrium position is called:



38. If a pendulum completes one cycle in half seconds, its frequency is:



39. A sound travels from one medium to another. Which one of the following characteristics of sound remains unchanged?



40. The intensity level (sound level) of faintest audible intensity is: