"In physics, work is the energy transferred to or from an object via the application of force along a displacement."
Work, energy and power are concepts used to describe the physical world in terms of the amount of work done, the amount of energy produced and the rate at which work is done or energy is produced.
Kinematics: The study of motion without considering the forces that cause it.
Forces and Newton's Laws of Motion: The fundamental laws that describe how objects move when a force is applied to them.
Work and Energy: The concepts of work and energy are closely related to each other, and both are used to describe the changes that occur in a system.
Conservation of Energy: A principle stating that energy cannot be created or destroyed, only transformed from one form to another.
Power: The rate at which work is done or energy is transferred from one system to another.
Torque: The tendency of a force to cause rotation around a fixed axis.
Moment of Inertia: The resistance of an object to changes in its rotational motion.
Springs and Elasticity: The behavior of springs and elastic materials.
Friction: The force that opposes motion or attempted motion between two surfaces in contact.
Potential Energy: The energy possessed by an object due to its position or configuration.
Kinetic Energy: The energy possessed by an object due to its motion.
Work-Energy Theorem: The relationship between the work done on an object and the change in its kinetic energy.
Conservative and Non-Conservative Forces: Forces that do and do not conserve energy.
Impulse and Momentum: The relationship between force and the change in an object's momentum.
Collisions: The behavior of objects during collisions and how momentum is conserved.
Rotational Dynamics: The study of the motion of spinning objects.
Centripetal Force and Acceleration: The force required to keep an object moving in a circular motion.
Angular Momentum: A property of rotating systems that describes their tendency to resist changes in their rotation.
Gyroscopes: Devices used to measure or maintain orientation in space.
Kinetic energy: Energy possessed by a body due to its motion.
Potential energy: Energy possessed by a body due to its position or configuration.
Elastic potential energy: Energy possessed by a body due to its deformation from its original shape.
Gravitational potential energy: Energy possessed by a body due to its position in a gravitational field.
Radiant energy: Energy carried by electromagnetic waves.
Thermal energy: Energy possessed by a system due to the movement of its particles.
Chemical energy: Energy stored in the bonds between atoms that can be released through chemical reactions.
Nuclear energy: Energy released by the splitting or fusion of atomic nuclei.
Electrical energy: Energy carried by electrons as they move through a circuit.
Magnetic energy: Energy possessed by a magnetic field.
Sound energy: Energy carried by sound waves.
Work: Transfer of energy from one system to another due to force displacement.
Power: Rate at which work is done or energy is transferred.
Internal energy: Total energy possessed by a system due to its particles’ motion and interaction.
Radiant flux: Rate at which radiant energy is emitted, transmitted or received.
Impulsive force: A sudden and short-lived force that changes an object's momentum.
Frictional force: A force that opposes motion between two surfaces in contact.
Tension force: A force that is transmitted through a string, rope, cable, or wire when pulled or pushed.
Spring force: A force that is exerted by a spring when it is stretched or compressed.
Electrical force: A force caused by the presence of electric charge.
Magnetic force: A force caused by the presence of a magnetic field.
"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."