MATHS SKILLS

Question 1

How do you calculate the uncertainty of a measurement from a range of data?

Answer 1

find the range of the data and halve it

Question 2

How do you calculate the uncertainty?

Answer 2

find the smallest resolution for your measuring device, and its at least +/- 0.5 of it. when measuring twice, it is +/- 1 of it

Question 3

How do you calculate % change?

Answer 3

final - initial / initial x100

Question 4

How do you calculate % INCREASE?

Answer 4

difference / SMALLEST NUMBER x100

Question 5

How do you calculate % DECREASE?

Answer 5

difference / BIGGEST NUMBER x100

Question 6

Why are ratios important?

Answer 6

they allow for comparison

Question 7

What is the surface area of a sphere?

Answer 7

4πr^2

Question 8

What is the volume of a sphere?

Answer 8

4/3 πr^3

Question 9

What is the equation for pH?

Answer 9

pH = -log10 ^[H+]

Question 10

What is the equation for pulmonary ventilation rate?

Answer 10

PVR = tidal volume x breathing rate

Question 11

What is the equation for cardiac output?

Answer 11

CO = stroke volume x heart rate