IEB SAGS Definitions ( W.E & P; G & E Fields; Electromagnetic Induction)
The work done on an object by a force - (correct Answer) - The product of the displacement and the
component of the force parallel to the displacement.
Gravitational Potential Energy - (correct Answer) - The energy an object possess due to its position
relative to a reference point.
Kinetic Energy - (correct Answer) - The energy an object has as a result of the object's motion.
Mechanical Energy - (correct Answer) - The sum of gravitational potential and kinetic energy at a point.
The Law of Conservation of Energy - (correct Answer) - The total energy in a system cannot be created
nor destroyed, only transferred from one form to another.
Principal of Conservation of Mechanical Energy - (correct Answer) - In the absence of air resistance or
any external forces, the mechanical energy of an object is constant.
Work-Energy Theorem - (correct Answer) - The work done by a net force on an object is equal to the
change in the kinetic energy of the object.
Power - (correct Answer) - The rate at which work is done OR The rate at which energy is transferred.
One Watt - (correct Answer) - The power when one joule of work is done in one second.
Efficiency - (correct Answer) - The ratio of output power to input power.
Newton's Law of Universal Gravitation - (correct Answer) - Every particle in the universe attracts every
other particle with a force which is directly proportional to the product of their masses and inversely
proportional to the square of the distance between their centers.
Coulomb's Law - (correct Answer) - The force between two charges is directly proportional to the
product of the charges and inversely proportional to the distance between the charges squared.
Electric Field - (correct Answer) - A region of space in which an electric charge experiences a force. The
direction of the electric field at a point is the direction that a positive test charge would move if placed at
that point.
The Magnitude of an Electric Field at a Point - (correct Answer) - The force per unit positive charge.
E=F/q where E and F are vectors.
EMF - (correct Answer) - The total energy supplied per coulomb of charge by the cell.
Magnetic Flux Density - (correct Answer) - A representation of the magnitude and directions of the
magnetic field.
Magnetic Flux Linkage - (correct Answer) - The product of the number of turns on the coil and the flux
through the coil.
The work done on an object by a force - (correct Answer) - The product of the displacement and the
component of the force parallel to the displacement.
Gravitational Potential Energy - (correct Answer) - The energy an object possess due to its position
relative to a reference point.
Kinetic Energy - (correct Answer) - The energy an object has as a result of the object's motion.
Mechanical Energy - (correct Answer) - The sum of gravitational potential and kinetic energy at a point.
The Law of Conservation of Energy - (correct Answer) - The total energy in a system cannot be created
nor destroyed, only transferred from one form to another.
Principal of Conservation of Mechanical Energy - (correct Answer) - In the absence of air resistance or
any external forces, the mechanical energy of an object is constant.
Work-Energy Theorem - (correct Answer) - The work done by a net force on an object is equal to the
change in the kinetic energy of the object.
Power - (correct Answer) - The rate at which work is done OR The rate at which energy is transferred.
One Watt - (correct Answer) - The power when one joule of work is done in one second.
Efficiency - (correct Answer) - The ratio of output power to input power.
Newton's Law of Universal Gravitation - (correct Answer) - Every particle in the universe attracts every
other particle with a force which is directly proportional to the product of their masses and inversely
proportional to the square of the distance between their centers.
Coulomb's Law - (correct Answer) - The force between two charges is directly proportional to the
product of the charges and inversely proportional to the distance between the charges squared.
Electric Field - (correct Answer) - A region of space in which an electric charge experiences a force. The
direction of the electric field at a point is the direction that a positive test charge would move if placed at
that point.
The Magnitude of an Electric Field at a Point - (correct Answer) - The force per unit positive charge.
E=F/q where E and F are vectors.
EMF - (correct Answer) - The total energy supplied per coulomb of charge by the cell.
Magnetic Flux Density - (correct Answer) - A representation of the magnitude and directions of the
magnetic field.
Magnetic Flux Linkage - (correct Answer) - The product of the number of turns on the coil and the flux
through the coil.
