Newtonian Mechanics
Description: Newtonian Mechanics Quiz | |
Number of Questions: 15 | |
Created by: Aliensbrain Bot | |
Tags: classical mechanics newton's laws of motion forces motion |
Which of Newton's laws of motion states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force?
According to Newton's Second Law of Motion, the acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to the mass of the object. The equation for Newton's Second Law is:
Newton's Third Law of Motion states that for every action, there is an equal and opposite reaction. This means that:
The force of gravity between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. The equation for the force of gravity is:
The momentum of an object is defined as the product of its mass and velocity. The equation for momentum is:
The work done by a force on an object is equal to the product of the force and the displacement of the object in the direction of the force. The equation for work is:
The kinetic energy of an object is equal to the work done to accelerate the object from rest to its current velocity. The equation for kinetic energy is:
The potential energy of an object is equal to the work done to move the object from its current position to a reference position. The equation for potential energy is:
The total mechanical energy of an object is the sum of its kinetic energy and potential energy. The equation for total mechanical energy is:
The law of conservation of energy states that the total energy of a closed system remains constant. This means that:
A pendulum is a weight suspended from a pivot so that it can swing freely. The period of a pendulum is the time it takes for the pendulum to make one complete swing. The equation for the period of a pendulum is:
A spring is a device that stores energy when it is stretched or compressed. The potential energy stored in a spring is given by the equation:
A mass-spring system is a system consisting of a mass attached to a spring. The natural frequency of a mass-spring system is the frequency at which the system will oscillate when it is disturbed from its equilibrium position. The equation for the natural frequency of a mass-spring system is:
A simple harmonic oscillator is a system that oscillates about an equilibrium position with a constant amplitude. The equation for the displacement of a simple harmonic oscillator is:
A damped harmonic oscillator is a system that oscillates about an equilibrium position with a decreasing amplitude. The equation for the displacement of a damped harmonic oscillator is: