A Level Edexcel Physics Paper 1 Exam
With Questions and Answers All
Answers 100% Verified (Latest Update
2025/2026 RATED A+
Newton's Third Law - CORRECT ANSWERS If object A exerts a force on object B, then object B
exerts an equal but opposite force on object A
Newton's Third Law pairs - CORRECT ANSWERS Example: An object exerts a weight of 50N
onto the earth. The third law pair would be that the earth would exert a NCF of 50N on the object
Conditions for Newton's Third Law Pairs to be true - CORRECT ANSWERS - Two Different
Forces
- Act on the same line
- Same magnitude
- Different objects
- same time
Potential Dividers - CORRECT ANSWERS A circuit that is used to only output part of the voltage
provided
Potential Divider equation - CORRECT ANSWERS Vout/Vin = R1/R1+R2
Potential Dividers and thermistors - CORRECT ANSWERS If a thermistor is used as R1, as
temperature decreases resistance increases and thus Vout increases as they are proportional, this can
be used as a heating system to turn it on if it gets cold enough
,Potential Dividers and LDRs - CORRECT ANSWERS If a LDR is used as R1, as light decreases
resistance increases and thus Vout increases as they are proportional, this can be used for street lights
to be turned on as light decreases
Thermistor - CORRECT ANSWERS a resistor whose resistance depends on the temperature of
the thermistor
As temperature decreases resistance increases
LDR - CORRECT ANSWERS Light dependent resistor
As light increases resistance decreases
Rheostat - CORRECT ANSWERS When a variable resistor is used to control current
Variable Resistor - CORRECT ANSWERS A resistor whose value can be varied between its
minimum and maximum values.
Variable Resistors and Potential Divider Uses - CORRECT ANSWERS A variable resistor can act
as a potential divider to act as a continuous slider to increases or decrease Vout. This can be used as a
dimmer switch
Magnetic Flux Density - CORRECT ANSWERS a measure of the strength of the magnetic field.
How densely packed lines of flux are equates to how strong a field is
Measures in Tesla T
,Magnetic Flux - CORRECT ANSWERS The total number magnetic field lines that pass through a
surface
= magnetic flux density x Area
Magnetic Flux Linkage - CORRECT ANSWERS The product of the magnetic flux and the number
of turns in a given coil.
= Number of coils x magnetic flux
Equations of motion - CORRECT ANSWERS v = u + at
s = 1/2(v+u)t
s = ut + 1/2at^2
v^2 = u^2 + 2as
Equation of motion for velocity - CORRECT ANSWERS v = u + at
Equation of motion for distance - CORRECT ANSWERS s = 1/2(v+u)t
s = ut + 1/2at^2
Equation of motion for velocity squared - CORRECT ANSWERS v^2 = u^2 + 2as
Equation for an magnetic field on a wire - CORRECT ANSWERS F = BIL
F = Force
B = Magnetic field strength (density)
, I = Current
L = length
Equation for a magnetic field on a wire not at 90 degrees to the field - CORRECT ANSWERS F=
BILsin(angle)
F = Force
B = Magnetic field strength (density)
I = Current
L = length
Angle at 90 degrees should just use F = BIL as sin90 = 1 therefore cos component will not affect the force
Angle at 0 degrees will be 0 as sin0 = 0
Equation for a magnetic field on a moving charge - CORRECT ANSWERS F = BQV
F = Force
B = Magnetic field strength (density)
Q = charge
V = velocity
Equation for a magnetic field of a moving charge not at 90 degrees to the field - CORRECT ANSWERS
F = BQVsin(angle)
F = Force
With Questions and Answers All
Answers 100% Verified (Latest Update
2025/2026 RATED A+
Newton's Third Law - CORRECT ANSWERS If object A exerts a force on object B, then object B
exerts an equal but opposite force on object A
Newton's Third Law pairs - CORRECT ANSWERS Example: An object exerts a weight of 50N
onto the earth. The third law pair would be that the earth would exert a NCF of 50N on the object
Conditions for Newton's Third Law Pairs to be true - CORRECT ANSWERS - Two Different
Forces
- Act on the same line
- Same magnitude
- Different objects
- same time
Potential Dividers - CORRECT ANSWERS A circuit that is used to only output part of the voltage
provided
Potential Divider equation - CORRECT ANSWERS Vout/Vin = R1/R1+R2
Potential Dividers and thermistors - CORRECT ANSWERS If a thermistor is used as R1, as
temperature decreases resistance increases and thus Vout increases as they are proportional, this can
be used as a heating system to turn it on if it gets cold enough
,Potential Dividers and LDRs - CORRECT ANSWERS If a LDR is used as R1, as light decreases
resistance increases and thus Vout increases as they are proportional, this can be used for street lights
to be turned on as light decreases
Thermistor - CORRECT ANSWERS a resistor whose resistance depends on the temperature of
the thermistor
As temperature decreases resistance increases
LDR - CORRECT ANSWERS Light dependent resistor
As light increases resistance decreases
Rheostat - CORRECT ANSWERS When a variable resistor is used to control current
Variable Resistor - CORRECT ANSWERS A resistor whose value can be varied between its
minimum and maximum values.
Variable Resistors and Potential Divider Uses - CORRECT ANSWERS A variable resistor can act
as a potential divider to act as a continuous slider to increases or decrease Vout. This can be used as a
dimmer switch
Magnetic Flux Density - CORRECT ANSWERS a measure of the strength of the magnetic field.
How densely packed lines of flux are equates to how strong a field is
Measures in Tesla T
,Magnetic Flux - CORRECT ANSWERS The total number magnetic field lines that pass through a
surface
= magnetic flux density x Area
Magnetic Flux Linkage - CORRECT ANSWERS The product of the magnetic flux and the number
of turns in a given coil.
= Number of coils x magnetic flux
Equations of motion - CORRECT ANSWERS v = u + at
s = 1/2(v+u)t
s = ut + 1/2at^2
v^2 = u^2 + 2as
Equation of motion for velocity - CORRECT ANSWERS v = u + at
Equation of motion for distance - CORRECT ANSWERS s = 1/2(v+u)t
s = ut + 1/2at^2
Equation of motion for velocity squared - CORRECT ANSWERS v^2 = u^2 + 2as
Equation for an magnetic field on a wire - CORRECT ANSWERS F = BIL
F = Force
B = Magnetic field strength (density)
, I = Current
L = length
Equation for a magnetic field on a wire not at 90 degrees to the field - CORRECT ANSWERS F=
BILsin(angle)
F = Force
B = Magnetic field strength (density)
I = Current
L = length
Angle at 90 degrees should just use F = BIL as sin90 = 1 therefore cos component will not affect the force
Angle at 0 degrees will be 0 as sin0 = 0
Equation for a magnetic field on a moving charge - CORRECT ANSWERS F = BQV
F = Force
B = Magnetic field strength (density)
Q = charge
V = velocity
Equation for a magnetic field of a moving charge not at 90 degrees to the field - CORRECT ANSWERS
F = BQVsin(angle)
F = Force
