**Summary**

take care when calculating: remember the BIDMAS rule

Numbers and Operations

Basic numeracy skills

So you think you can add, subtract, multiply & divide?

working with Formulae

a formula LINKS variables

use a formula to calculate a result

derive a formula from data

**BIDMAS**

working with DATA

**w**

**i**

**NN**

**E**

**r**

**Maths for SporT**

1 - working with numbers;

2 - working with data, drawing graphs and dealing with formulae;

3 - formulae and equations

4 - working with kinematics

The order of operations:

RULES for calculating...

Andrew Dykes

Study Hub Tutor

andrew.dykes@beds.ac.uk

Maths, numeracy & statistics

THINK about data before plotting a graph of it

THINK about a formula before using it

look for patterns

represent the data graphically

https://www.mangahigh.com/en-gb/games/bidmasblaster

Plotting graphs of data:

- is the data CONTINUOUS or DISCRETE ?

(eg: you can't plot discrete data as a line or scatter

graph)

- the horizontal axis is the INDEPENDENT variable -

this is the variable that you

set

or

choose

- the vertical axis is the DEPENDENT variable - this is

the variable that you

record

or

measure

if F = 42, C = ?

v = v + a.t

f

i

calculate v

f

v = 7 m/s , a = 0.25 m/s, t = 12 s

i

2

**5 - exam practice**

v = v + a.t

f

calculate v

f

v = 7 m/s , a = 0.25 m/s, t = 12 s

i

2

v = 10.5 m/s v = 7 m/s a = 0.25 m/s

f

i

calculate t

calculate v

f

v = 8.2 m/s , a = 0.3 m/s, t = 11.4 s

i

2

2

Re-arrange the formula

v = v + a.t

to make 't' the subject

f

i

Two cyclists in a competition cover the same stage almost together;

Both take the same time to cover the stage, and both cross the start line of the stage at the same velocity.

Cyclist A crosses the stage finish line with a velocity of v = 13 m/s and his acceleration through the stage was measured at a = 0.05 m/s

Cyclist B crosses the stage finish line with a velocity of v = 11 m/s and his acceleration was measured at a = 0.03 m/s

Was was their initial velocity, v , and how long did the stage take?

2

2

f

f

i