"In physics, work is the energy transferred to or from an object via the application of force along a displacement."
The study of the relationship between the work done on an object and the change in the object's energy. It is used to predict the motion of objects and is essential in understanding dynamics.
Kinematics: The study of motion without reference to the forces that cause the motion.
Mechanics: The branch of physics that deals with the study of motion of objects under the influence of forces.
Scalar and Vector quantities: Scalars are quantities that have a magnitude but no direction while vectors have both magnitude and direction.
Force: A push or pull on an object due to its interaction with another object.
Inertia: The tendency of an object to resist changes in its state of motion.
Newton's Laws of Motion: Three fundamental laws that explain the motion of objects in relation to the forces acting upon them.
Work: A measure of energy transfer that occurs when a force is applied over a distance.
Energy: Capacity to do work.
Conservation of Energy: The principle that energy can neither be created nor destroyed; it can only be transferred from one form to another.
Power: The rate at which work is done or energy is transferred.
Potential Energy: Energy possessed by an object by virtue of its position or state.
Kinetic Energy: Energy possessed by an object due to its motion.
Work-Energy Theorem: The principle that the work done by all forces acting on an object is the change in the object's kinetic energy.
Elastic and Inelastic Collisions: Collisions in which objects conserve kinetic energy or not.
Impulse: The product of force and time over which the force acts.
Momentum: A measure of an object's motion; it equals the product of its mass and velocity.
Conservation of Momentum: The principle that the momentum of a closed system is conserved.
Friction: The force resisting the relative motion of objects in contact.
Elasticity: The ability of a body to resist deformation.
Gravitation: The force of attraction between any two objects in the universe.
Conservation of Angular Momentum: The principle that the angular momentum of a closed system is conserved.
Kinetic Energy: The energy of motion possessed by an object due to its mass and velocity.
Potential Energy: The energy an object possesses based on its position or configuration in a force field.
Thermal Energy: The energy possessed by an object due to its temperature, which is the average kinetic energy of its particles.
Chemical Energy: The energy stored in chemical bonds that can be released through chemical reactions.
Electrical Energy: The energy associated with the movement of charged particles through a circuit.
Magnetic Energy: The energy possessed by a magnetic field due to its interaction with other magnetic fields or charged particles.
Nuclear Energy: The energy released during nuclear reactions such as fission or fusion.
Elastic Energy: The potential energy stored in elastic materials that can be released upon deformation and/or release.
Gravitational Potential Energy: The energy of an object due to its position above a reference point in a gravitational field.
Sound Energy: The energy carried by sound waves as they propagate through a medium.
"In its simplest form, for a constant force aligned with the direction of motion, the work equals the product of the force strength and the distance traveled."
"A force is said to do positive work if when applied it has a component in the direction of the displacement of the point of application."
"For example, when a ball is held above the ground and then dropped, the work done by the gravitational force on the ball as it falls is positive, and is equal to the weight of the ball... multiplied by the distance to the ground."
"A force does negative work if it has a component opposite to the direction of the displacement at the point of application of the force."
"If the ball is thrown upwards, the work done by the gravitational force is negative, and is equal to the weight multiplied by the displacement in the upwards direction."
"The work done is given by the dot product of the two vectors."
"When the force F is constant and the angle θ between the force and the displacement s is also constant, then the work done is given by..."
"Work is a scalar quantity."
"The SI unit of work is the joule (J), the same unit as for energy."
"Work transfers energy from one place to another, or one form to another."
"The work done is given by the dot product of the two vectors."
"A force is said to do positive work if when applied it has a component in the direction of the displacement... A force does negative work if it has a component opposite to the direction of the displacement."
"Yes, for a constant force aligned with the direction of motion, the work equals the product of the force strength..."
"Yes, for a constant force aligned with the direction of motion, the work equals the product of... the distance traveled."
"For example, when a ball is held above the ground and then dropped, the work done by the gravitational force on the ball as it falls is positive..."
"Work is the energy transferred to or from an object via the application of force along a displacement."
"Work is a scalar quantity, so it has only magnitude and no direction."
"Work transfers energy from one place to another, or one form to another."
"The SI unit of work is the joule (J), the same unit as for energy."