, Line of force - CORRECT ANSWERS-Direction a hypothetical "free north pole" would
travel in the field. Otherwise known as a field line.
Motor effect - CORRECT ANSWERS-Effect in which a current in a magnetic field
experiences a force.
Fleming's left hand rule - CORRECT ANSWERS-Way of working out the directions
involved in the motor effect.
Magnetic flux density - CORRECT ANSWERS-Force per unit length per unit current on
a conductor perpendicular to the field lines. Often referred to as the strength of the
magnetic field.
Couple - CORRECT ANSWERS-Pair of forces in opposite directions that try to turn an
object. Acts on the coil of a motor.
Thermionic - CORRECT ANSWERS-Property of a material that means that when it gets
hot, it emits electrons.
Cyclotron - CORRECT ANSWERS-Spiral particle accelerator.
Frequency - CORRECT ANSWERS-Number of rotations per second, given by 1/T.
Mass spectrometer - CORRECT ANSWERS-Device that separates a constituents of a
substance by their masses.
Ion - CORRECT ANSWERS-Charged atom.
Velocity selector - CORRECT ANSWERS-Component that uses an opposing electric
and magnetic field to ensure all particles going straight through have the same speed
and direction.
Vacuum - CORRECT ANSWERS-Space where (nearly) all particles have been
removed (evacuated).
Electromotive force - CORRECT ANSWERS-Force on electrons that tries to push them
along. Known as the emf.
Electromagnetic induction - CORRECT ANSWERS-Phenomenon in which a changing
magnetic field, relative to a wire, will produce an emf.
Fleming's right hand rule - CORRECT ANSWERS-Also known as the dynamo rule.
Works out directions involved in electromagnetic induction.
Solenoid - CORRECT ANSWERS-Electrical coil.
travel in the field. Otherwise known as a field line.
Motor effect - CORRECT ANSWERS-Effect in which a current in a magnetic field
experiences a force.
Fleming's left hand rule - CORRECT ANSWERS-Way of working out the directions
involved in the motor effect.
Magnetic flux density - CORRECT ANSWERS-Force per unit length per unit current on
a conductor perpendicular to the field lines. Often referred to as the strength of the
magnetic field.
Couple - CORRECT ANSWERS-Pair of forces in opposite directions that try to turn an
object. Acts on the coil of a motor.
Thermionic - CORRECT ANSWERS-Property of a material that means that when it gets
hot, it emits electrons.
Cyclotron - CORRECT ANSWERS-Spiral particle accelerator.
Frequency - CORRECT ANSWERS-Number of rotations per second, given by 1/T.
Mass spectrometer - CORRECT ANSWERS-Device that separates a constituents of a
substance by their masses.
Ion - CORRECT ANSWERS-Charged atom.
Velocity selector - CORRECT ANSWERS-Component that uses an opposing electric
and magnetic field to ensure all particles going straight through have the same speed
and direction.
Vacuum - CORRECT ANSWERS-Space where (nearly) all particles have been
removed (evacuated).
Electromotive force - CORRECT ANSWERS-Force on electrons that tries to push them
along. Known as the emf.
Electromagnetic induction - CORRECT ANSWERS-Phenomenon in which a changing
magnetic field, relative to a wire, will produce an emf.
Fleming's right hand rule - CORRECT ANSWERS-Also known as the dynamo rule.
Works out directions involved in electromagnetic induction.
Solenoid - CORRECT ANSWERS-Electrical coil.
