A LEVEI EDEXCEL PHYSICS PAPER 1 FINAL EXAM WITH QUESTIONS ANSWERS
(100% SOLVED)
Newton's Third Law - ✔✔✔–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 - ✔✔✔–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 - ✔✔✔–- Two Different Forces
- Act on the same line
- Same magnitude
- Different objects
- same time
Potential Dividers - ✔✔✔–A circuit that is used to only output part of the voltage provided
Potential Divider equation - ✔✔✔–Vout/Vin = R1/R1+R2
Potential Dividers and thermistors - ✔✔✔–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 - ✔✔✔–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 - ✔✔✔–a resistor whose resistance depends on the temperature of the thermistor
As temperature decreases resistance increases
LDR - ✔✔✔–Light dependent resistor
,A LEVEI EDEXCEL PHYSICS PAPER 1 FINAL EXAM WITH QUESTIONS ANSWERS
(100% SOLVED)
As light increases resistance decreases
Rheostat - ✔✔✔–When a variable resistor is used to control current
Variable Resistor - ✔✔✔–A resistor whose value can be varied between its minimum and maximum
values.
Variable Resistors and Potential Divider Uses - ✔✔✔–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 - ✔✔✔–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 - ✔✔✔–The total number magnetic field lines that pass through a surface
= magnetic flux density x Area
Magnetic Flux Linkage - ✔✔✔–The product of the magnetic flux and the number of turns in a given coil.
= Number of coils x magnetic flux
Equations of motion - ✔✔✔–v = u + at
s = 1/2(v+u)t
s = ut + 1/2at^2
v^2 = u^2 + 2as
, A LEVEI EDEXCEL PHYSICS PAPER 1 FINAL EXAM WITH QUESTIONS ANSWERS
(100% SOLVED)
Equation of motion for velocity - ✔✔✔–v = u + at
Equation of motion for distance - ✔✔✔–s = 1/2(v+u)t
s = ut + 1/2at^2
Equation of motion for velocity squared - ✔✔✔–v^2 = u^2 + 2as
Equation for an magnetic field on a wire - ✔✔✔–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 - ✔✔✔–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 - ✔✔✔–F = BQV
F = Force
(100% SOLVED)
Newton's Third Law - ✔✔✔–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 - ✔✔✔–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 - ✔✔✔–- Two Different Forces
- Act on the same line
- Same magnitude
- Different objects
- same time
Potential Dividers - ✔✔✔–A circuit that is used to only output part of the voltage provided
Potential Divider equation - ✔✔✔–Vout/Vin = R1/R1+R2
Potential Dividers and thermistors - ✔✔✔–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 - ✔✔✔–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 - ✔✔✔–a resistor whose resistance depends on the temperature of the thermistor
As temperature decreases resistance increases
LDR - ✔✔✔–Light dependent resistor
,A LEVEI EDEXCEL PHYSICS PAPER 1 FINAL EXAM WITH QUESTIONS ANSWERS
(100% SOLVED)
As light increases resistance decreases
Rheostat - ✔✔✔–When a variable resistor is used to control current
Variable Resistor - ✔✔✔–A resistor whose value can be varied between its minimum and maximum
values.
Variable Resistors and Potential Divider Uses - ✔✔✔–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 - ✔✔✔–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 - ✔✔✔–The total number magnetic field lines that pass through a surface
= magnetic flux density x Area
Magnetic Flux Linkage - ✔✔✔–The product of the magnetic flux and the number of turns in a given coil.
= Number of coils x magnetic flux
Equations of motion - ✔✔✔–v = u + at
s = 1/2(v+u)t
s = ut + 1/2at^2
v^2 = u^2 + 2as
, A LEVEI EDEXCEL PHYSICS PAPER 1 FINAL EXAM WITH QUESTIONS ANSWERS
(100% SOLVED)
Equation of motion for velocity - ✔✔✔–v = u + at
Equation of motion for distance - ✔✔✔–s = 1/2(v+u)t
s = ut + 1/2at^2
Equation of motion for velocity squared - ✔✔✔–v^2 = u^2 + 2as
Equation for an magnetic field on a wire - ✔✔✔–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 - ✔✔✔–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 - ✔✔✔–F = BQV
F = Force
