# Formulae: Unit 11

?
• Created by: annanolan
• Created on: 03-10-16 19:18
Compound interest
amount = initial amount x (100 + interest rate ÷ 100)^n
1 of 12
What is the formula for speed?
speed = distance ÷ time
2 of 12
What does 'a' mean in kinematics formula?
a = constant acceleration (e.g m/s^2)
3 of 12
What does 'u' mean in kinematics formula?
u = initial velocity
4 of 12
What does 'v' mean in kinematics formula?
v = final velocity (e.g. m/s)
5 of 12
What does 's' mean in kinematics formula?
s = distance
6 of 12
What does 't' mean in kinematics formula?
t = time
7 of 12
What is the formula for density?
density = mass ÷ volume (in g/cm^3)
8 of 12
What is the formula for pressure?
pressure = force ÷ area
9 of 12
What is the formula for direct proportion?
k = y/x or y=kx
10 of 12
What is inverse proportion?
as one doubles, the other halves etc., y is proportional to 1/x
11 of 12
What is the formula for inverse proportion?
k = xy or y=k/x
12 of 12

## Other cards in this set

### Card 2

#### Front

What is the formula for speed?

#### Back

speed = distance ÷ time

### Card 3

#### Front

What does 'a' mean in kinematics formula?

### Card 4

#### Front

What does 'u' mean in kinematics formula?

### Card 5

#### Front

What does 'v' mean in kinematics formula?