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A level physics Question and answers rated A+

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A level physics Question and answers rated A+ A level physics Define pressure - correct answer The force per unit area Define moment of a force - correct answer Force multiplied by the perpendicular distance from the pivot to the line of action of the force Define density - correct a...

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  • October 19, 2024
  • 5
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • PHYSICS
  • PHYSICS

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A level physics
Define pressure - correct answer ✔The force per unit area


Define moment of a force - correct answer ✔Force multiplied by the
perpendicular distance from the pivot to the line of action of the force


Define density - correct answer ✔The mass per unit volume


Define 1 newton - correct answer ✔The force requires to love an object of 1
kg with an acceleration of 1 m/s2


For any object to be in equilibrium.. - correct answer ✔The sum of the
clockwise moment has to be equal to the sum of the anti clockwise moment
about the pivot


NetTorque and NetForce is always 0 in.. - correct answer ✔Equilibrium


Define torque - correct answer ✔One of the forces X by the perpendicular
distance between the forces


Define couple - correct answer ✔Pairs of equal and opposite forces that
produce rotation, eg steering wheel


Reaction time is .. - correct answer ✔The time taken for driver to react to a
stimulant


1000L is how many m3? - correct answer ✔1m3

, Accurate is.. - correct answer ✔How far is your value from the real value


Precise is.. - correct answer ✔How many times you repeat your experiment
and get the same value


SUVAT equations only work when.. - correct answer ✔Acceleration is
constant


Tensile stress - correct answer ✔The force applied per unit area of the wire


Tensile strain - correct answer ✔The fractional change in the original length
of the wire


Ultimate tensile strength - correct answer ✔The maximum stress that a
material can withstand when being stretched


Brittle - correct answer ✔When materials cannot be permanently stretched,
they break after the elastic limit has been exceeded


Ductile - correct answer ✔Material cannot return to its original shape


Equation for tstress - correct answer ✔F/A


Equation for tsrain - correct answer ✔X/l


Equation for young modulus - correct answer ✔Tstress/tstrain

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