AQA Physics Paper 1 Current Version
Question and Answer | Ultimate Review
Edition | Grade A+
• Longitudinal . CORRECT ANSWER: A wave in which displacement is parallel to
direction of travel.
• Transverse . CORRECT ANSWER: A wave in which displacement of partivles is
perpendicular to travel.
• Scalar . CORRECT ANSWER: a quantity having only magnitude, not direction
• Vector . CORRECT ANSWER: A quantity with both magnitude and direction
• principle of moments . CORRECT ANSWER: When a system is in equilibrium the
sum of anticlockwise moments about a point equals the sum of the clockwise
moments about the same point
• Centre of gravity . CORRECT ANSWER: The single point within a body at which
the entire weight of the body is considered to act
• Terminal Velocity . CORRECT ANSWER: The constant, maximum velocity of an
object when the resistive forces on it are equal and opposite to the accelerating
forces
• Hooke's Law . CORRECT ANSWER: The tension in a spring or wire is proportional
to its extension from its natural length, provided the extension is not too great
(before elastic deformation)
, • Spring Constant . CORRECT ANSWER: A characteristic of a spring which is
defined as the ratio of the force affecting the spring to the displacement caused
by it
• Tensile Stress . CORRECT ANSWER: the force per unit cross-sectional area when
equal opposing forces act on a body. UNIT: Pa or Nm^-2.
• moment . CORRECT ANSWER: The turning effect of a force about a point is
defined as the force x the perpendicular distance from the point to the line of
action of the force UNIT: Nm
• Tensile Strain . CORRECT ANSWER: extension per unit length (no unit)
• Young Modulus . CORRECT ANSWER: E=tensile stress/tensile strain (for hooke's
law region)
• Amplitude . CORRECT ANSWER: the maximum extent of a vibration or
oscillation, measured from the position of equilibrium
• Wavelength . CORRECT ANSWER: distance between a point on one wave and
the same point on the next wave
• Frequency . CORRECT ANSWER: the number of waves produced by a source
each second
Question and Answer | Ultimate Review
Edition | Grade A+
• Longitudinal . CORRECT ANSWER: A wave in which displacement is parallel to
direction of travel.
• Transverse . CORRECT ANSWER: A wave in which displacement of partivles is
perpendicular to travel.
• Scalar . CORRECT ANSWER: a quantity having only magnitude, not direction
• Vector . CORRECT ANSWER: A quantity with both magnitude and direction
• principle of moments . CORRECT ANSWER: When a system is in equilibrium the
sum of anticlockwise moments about a point equals the sum of the clockwise
moments about the same point
• Centre of gravity . CORRECT ANSWER: The single point within a body at which
the entire weight of the body is considered to act
• Terminal Velocity . CORRECT ANSWER: The constant, maximum velocity of an
object when the resistive forces on it are equal and opposite to the accelerating
forces
• Hooke's Law . CORRECT ANSWER: The tension in a spring or wire is proportional
to its extension from its natural length, provided the extension is not too great
(before elastic deformation)
, • Spring Constant . CORRECT ANSWER: A characteristic of a spring which is
defined as the ratio of the force affecting the spring to the displacement caused
by it
• Tensile Stress . CORRECT ANSWER: the force per unit cross-sectional area when
equal opposing forces act on a body. UNIT: Pa or Nm^-2.
• moment . CORRECT ANSWER: The turning effect of a force about a point is
defined as the force x the perpendicular distance from the point to the line of
action of the force UNIT: Nm
• Tensile Strain . CORRECT ANSWER: extension per unit length (no unit)
• Young Modulus . CORRECT ANSWER: E=tensile stress/tensile strain (for hooke's
law region)
• Amplitude . CORRECT ANSWER: the maximum extent of a vibration or
oscillation, measured from the position of equilibrium
• Wavelength . CORRECT ANSWER: distance between a point on one wave and
the same point on the next wave
• Frequency . CORRECT ANSWER: the number of waves produced by a source
each second
