physics

Physics elaboration that is heavily usedul to improve your knowledge and it is specifically useful to srilankan students

Electrical Power = Current x voltage Voltage = Current x resistance Charge = Current x time Average Speed = Distance / time Acceleration = Change in Velocity / Time Taken Force = Mass x Acceleration Pressure Difference = Height x Density x Gravity Moment = Force x Perpendicular Distance from Pivot Pressure = Force / Area Wave Speed = Frequency x Wavelength Refractive Index = Sin (I) / Sin (R) Sin (Critical angle) = 1 / Refractive Index Energy Transfer = Work Done Work D...

An object of mass m is lifted at constant velocity a vertical distance H in time T. The power supplied by the lifting force is mgH/T A system consists of two objects having masses m1 and m2 (m1 < m2). The objects are connected by a massless string, hung over a pulley as shown above, and then released. When the object of mass m2 has descended a distance h, the potential energy of the system has decreased by (m2 - m1)gh The following graphs, all drawn to the same scale, represent he net for...

A simple pendulum of length l, whose bob has mass m, oscillates with a period T. If the bob is replaced by one of mass 4m, the period of oscillation is T Which of the following is true for a system consisting of a mass oscillating on the end of an ideal spring? The maximum kinetic energy occurs at maximum displacement of thr mass from its equilibrium position A 0.1 kilogram block is attached to an initially unstretched spring of force constant k = 40 newtons per meter as shown above. The blo...

Torque is the rotational analogue of Force A square piece of plywood on a horizontal tabletop is subjected to the two horizontal forces shown above. Where should a third force of magnitude 5 newtons be applied to put the piece of plywood into equilibrium {Down arrow in top left corner} Diagram + A uniform rigid bar of weight W is supported in a horizontal orientation as shown above by a rope that makes a 30 degree angle with the horizontal. The force extorted on the bar at point O, where it ...

How does the spring scales works and it's application

PHSC 121 Liberty University Exam Edition. All Questions & Correct Answers. Graded A+

PHSC 121 Homeworks (5-7) 2nd Exam . All Questions & Correct, Verified Answers. Already Graded A+

PHSC 121 Exam Edition. Questions & Correct Answers. Graded A+

This document contains objective practice questions of Physics, Center of Mass,linear momentum and collision