Update 2025 Questions with Verified
Answers, Guaranteed Perfect Score.
Reliable!!!!
1d collisions head on collisions sticking together - Correct Answers-mv - mv = collective mass
xv
1d collisions in the same direction not sticking together - Correct Answers-mv + mv = mv +
mv
1d collisions in the same direction sticking together - Correct Answers-mv + mv = collective
mass x v
1d explosions - Correct Answers-mv + 0 = collective mass x v
1d recoil - Correct Answers-0 = mv + mv
Gun velocity will be negative as it is going back
2d collisions - Correct Answers-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 = - Correct Answers-2π radians
An emf is induced - Correct Answers-When there is relative movement between a magnet
and a coil
An object being hit off the ground at an angle horizontal distance travelled - Correct
Answers-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 - Correct Answers-Consider vertical
velocity = 0
Consider vertical component of initial launch
using SOHCAHTOA
Know acceleration is negative and dependant on the plane
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 - Correct Answers-
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 - Correct Answers-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 - Correct Answers-Use suvat
remembering u is 0
Angle in radians - Correct Answers-length of arc (s) / radius (r)
Angular speed - Correct Answers-Angle turned/ time taken
Angular speed and time period/frequency equations - Correct Answers-One revolution is 2 pi
radians which takes T seconds
w =2 pi/T or 2 pi f
Annihilation - Correct Answers-When an antimatter and matter meet they destroy each-
other and their mass is converted into energy
, Annihilation example - Correct Answers-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 - Correct Answers-A "complementary" form of matter composed of particles that
have equal but opposite charge and spin in opposite directions
Baryon - Correct Answers-A hadron consisting of three quarks
Capacitance - Correct Answers-the ability of a conductor to store energy in the form of
electrically separated charges
Capacitance equation - Correct Answers-C = Q/V
Capacitor - Correct Answers-An electrical device used to store electrical charge.
Capacitor charge graphs - Correct Answers-Exponential increase
Capacitor discharge graphs - Correct Answers-Exponential discharge
Centre of Gravity - Correct Answers-The point where the entire weight of an object appears
to act.
Centre of mass - Correct Answers-The point where the entire mass of an object appears to
act.
Centripetal Acceleration - Correct Answers-acceleration toward the center of a curved or
circular path
Direction of velocity is changing
Centripetal acceleration - Correct Answers-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 - Correct Answers-a = v^2/r
or