A Level Edexcel Physics Paper 1
1d collisions head on collisions sticking together - ANS - mv - mv = collective mass x v
\1d collisions in the same direction not sticking together - ANS - mv + mv = mv + mv
\1d collisions in the same direction sticking together - ANS - mv + mv = collective mass x v
\1d explosions - ANS - mv + 0 = collective mass x v
\1d recoil - ANS - 0 = mv + mv
Gun velocity will be negative as it is going back
\2d collisions - ANS - Total momentum in vertical component
Total momentum in horizontal component
Use momentums to find resultant vector
Divide by combined mass to find velocity
Use SOHCAHTOA to find angle of velocity
\360 degrees = - ANS - 2π radians
\An emf is induced - ANS - When there is relative movement between a magnet and a coil
\An object being hit off the ground at an angle horizontal distance travelled - ANS - Work out
horizontal component of inital velocity
Use d = horizontal velocity x time
\An object being hit off the ground at an angle time in air - ANS - Consider vertical velocity = 0
Consider vertical component of initial launch
using SOHCAHTOA
Know acceleration is negative and dependant on the planet
Use suvant to find t
Double it as this motion is parabolic and thus half of the time
\An object thrown off a cliff distance it lands from the foot of the cliff - ANS - Horizontal distance
= horizontal velocity x time of flight
Horizontal velocity is given
Time may be given or worked out earlier using suvat
\An object thrown off a cliff magnitude of final velocity - ANS - Vertical Velocity = u + at
Horizontal Velocity is given in the question
Use Pythagoras to find resultant
\An object thrown off a cliff time taken to reach ground - ANS - Use suvat remembering u is 0
\Angle in radians - ANS - length of arc (s) / radius (r)
\Angular speed - ANS - Angle turned/ time taken
, \Angular speed and time period/frequency equations - ANS - One revolution is 2 pi radians
which takes T seconds
w =2 pi/T or 2 pi f
\Annihilation - ANS - When an antimatter and matter meet they destroy each-other and their
mass is converted into energy
\Annihilation example - ANS - When an electron and a positron meet they annihilate and release
2 gamma photons
2 are released to conserve momentum of two particles annihilating
\Antimatter - ANS - A "complementary" form of matter composed of particles that have equal but
opposite charge and spin in opposite directions
\Baryon - ANS - A hadron consisting of three quarks
\Capacitance - ANS - the ability of a conductor to store energy in the form of electrically
separated charges
\Capacitance equation - ANS - C = Q/V
\Capacitor - ANS - An electrical device used to store electrical charge.
\Capacitor charge graphs - ANS - Exponential increase
\Capacitor discharge graphs - ANS - Exponential discharge
\Centre of Gravity - ANS - The point where the entire weight of an object appears to act.
\Centre of mass - ANS - The point where the entire mass of an object appears to act.
\Centripetal Acceleration - ANS - acceleration toward the center of a curved or circular path
Direction of velocity is changing
\Centripetal acceleration - ANS - Your linear velocity is not changing but the direction is
therefore you are accelerating
a = rw^2
You accelerate towards the centre of the circle
\Centripetal Acceleration Equation - ANS - a = v^2/r
or
a = rw^2
\Centripetal Force - ANS - the resultant force towards the centre of a circle acting on an object
moving in a straight line causing it to move a circular path
\Centripetal Force Equation - ANS - F = mv^2/r
or
F = mrw^2
\Centripetal force equation - ANS - F = mv^2/r or F = mrw^2
\Change in resistance with temperature model answer - ANS - - Metals contain large numbers of
free electrons
1d collisions head on collisions sticking together - ANS - mv - mv = collective mass x v
\1d collisions in the same direction not sticking together - ANS - mv + mv = mv + mv
\1d collisions in the same direction sticking together - ANS - mv + mv = collective mass x v
\1d explosions - ANS - mv + 0 = collective mass x v
\1d recoil - ANS - 0 = mv + mv
Gun velocity will be negative as it is going back
\2d collisions - ANS - Total momentum in vertical component
Total momentum in horizontal component
Use momentums to find resultant vector
Divide by combined mass to find velocity
Use SOHCAHTOA to find angle of velocity
\360 degrees = - ANS - 2π radians
\An emf is induced - ANS - When there is relative movement between a magnet and a coil
\An object being hit off the ground at an angle horizontal distance travelled - ANS - Work out
horizontal component of inital velocity
Use d = horizontal velocity x time
\An object being hit off the ground at an angle time in air - ANS - Consider vertical velocity = 0
Consider vertical component of initial launch
using SOHCAHTOA
Know acceleration is negative and dependant on the planet
Use suvant to find t
Double it as this motion is parabolic and thus half of the time
\An object thrown off a cliff distance it lands from the foot of the cliff - ANS - Horizontal distance
= horizontal velocity x time of flight
Horizontal velocity is given
Time may be given or worked out earlier using suvat
\An object thrown off a cliff magnitude of final velocity - ANS - Vertical Velocity = u + at
Horizontal Velocity is given in the question
Use Pythagoras to find resultant
\An object thrown off a cliff time taken to reach ground - ANS - Use suvat remembering u is 0
\Angle in radians - ANS - length of arc (s) / radius (r)
\Angular speed - ANS - Angle turned/ time taken
, \Angular speed and time period/frequency equations - ANS - One revolution is 2 pi radians
which takes T seconds
w =2 pi/T or 2 pi f
\Annihilation - ANS - When an antimatter and matter meet they destroy each-other and their
mass is converted into energy
\Annihilation example - ANS - When an electron and a positron meet they annihilate and release
2 gamma photons
2 are released to conserve momentum of two particles annihilating
\Antimatter - ANS - A "complementary" form of matter composed of particles that have equal but
opposite charge and spin in opposite directions
\Baryon - ANS - A hadron consisting of three quarks
\Capacitance - ANS - the ability of a conductor to store energy in the form of electrically
separated charges
\Capacitance equation - ANS - C = Q/V
\Capacitor - ANS - An electrical device used to store electrical charge.
\Capacitor charge graphs - ANS - Exponential increase
\Capacitor discharge graphs - ANS - Exponential discharge
\Centre of Gravity - ANS - The point where the entire weight of an object appears to act.
\Centre of mass - ANS - The point where the entire mass of an object appears to act.
\Centripetal Acceleration - ANS - acceleration toward the center of a curved or circular path
Direction of velocity is changing
\Centripetal acceleration - ANS - Your linear velocity is not changing but the direction is
therefore you are accelerating
a = rw^2
You accelerate towards the centre of the circle
\Centripetal Acceleration Equation - ANS - a = v^2/r
or
a = rw^2
\Centripetal Force - ANS - the resultant force towards the centre of a circle acting on an object
moving in a straight line causing it to move a circular path
\Centripetal Force Equation - ANS - F = mv^2/r
or
F = mrw^2
\Centripetal force equation - ANS - F = mv^2/r or F = mrw^2
\Change in resistance with temperature model answer - ANS - - Metals contain large numbers of
free electrons
