Skip to content
Toggle sidebar
Pricing
Log in
Sign up free
Loading…
Home
Subjects
Past papers
Key terms
Pricing
My courses
Select your courses
Loading…
Loading…
Relationships to Select and Apply — OCR GCSE Combined Science B J260
Home
More
Combined Science
OCR GCSE Combined Science B
Mathematical Skills and Equations
Equations in Physics
Relationships to Select and Apply
OCR GCSE Combined Science B · J260
Relationships to Select and Apply
What you need to know
Calculate magnetic force using magnetic flux density, current, and length of conductor (Higher Tier):
F
=
B
I
l
F = B I l
F
=
B
I
l
Calculate potential difference and current relationships across primary and secondary transformer coils:
V
p
I
p
=
V
s
Revision notes
1
Relationships to Select and Apply
11 key terms
Practise with past papers
Key terms & definitions
Previous subtopic
Relationships to Recall and Apply
I
s
V_p I_p = V_s I_s
V
p
I
p
=
V
s
I
s
Calculate final speed, initial speed, acceleration, and distance (Higher Tier) using:
v
2
−
u
2
=
2
a
s
v^2 - u^2 = 2 a s
v
2
−
u
2
=
2
a
s
Calculate change in momentum from resultant force and time (Higher Tier):
Δ
p
=
F
t
\Delta p = F t
Δ
p
=
F
t
Calculate change in internal energy using mass, specific heat capacity, and change in temperature:
Δ
E
=
m
c
Δ
θ
\Delta E = m c \Delta \theta
Δ
E
=
m
c
Δ
θ
Calculate the energy required for a change of state using mass and specific latent heat:
E
=
m
l
E = m l
E
=
m
l
Calculate energy stored in a stretched spring using the spring constant and extension:
E
=
0.5
k
x
2
E = 0.5 k x^2
E
=
0.5
k
x
2
