Study guides
Find a topic, check your course details and build your understanding.
Search a set text, topic, awarding organisation, qualification or course code. Check the version shown on each guide.
Showing 8071–8100 of 12584 guides
Chemistry
For humans, drinking water should have sufficiently low levels of…
AQAGCSE
8462
Combined Science
Potable water: give reasons for the steps used to produce potable water.
AQAGCSE
8464
Chemistry
If supplies of fresh water are limited, desalination of salty water or sea…
AQAGCSE
8462
Combined Science
If supplies of fresh water are limited, desalination of salty water or sea…
AQAGCSE
8464
Combined Science
In the United Kingdom (UK), rain provides water with low levels of…
AQAGCSE
8464
Chemistry
In the United Kingdom (UK), rain provides water with low levels of…
AQAGCSE
8462
Combined Science
Potable water: passing the water through filter beds
AQAGCSE
8464
Chemistry
Potable water is not pure water in the chemical sense because it contains…
AQAGCSE
8462
Chemistry
Required practical 8: analysis and purification of water samples from…
AQAGCSE
8462
Combined Science
Required practical activity 13: analysis and purification of water samples…
AQAGCSE
8464
Chemistry
Sterilising agents used for potable water include chlorine, ozone or…
AQAGCSE
8462
Combined Science
Sterilising agents used for potable water include chlorine, ozone or…
AQAGCSE
8464
Combined Science
Potable water: sterilising.
AQAGCSE
8464
Chemistry
Students should be able to: distinguish between potable water and pure…
AQAGCSE
8462
Combined Science
The methods used to produce potable water depend on available supplies of…
AQAGCSE
8464
Chemistry
The methods used to produce potable water depend on available supplies of…
AQAGCSE
8462
Chemistry
Potable water: These processes require large amounts of energy.
AQAGCSE
8462
Chemistry
Potable water: Water of appropriate quality is essential for life.
AQAGCSE
8462
Combined Science
Water of appropriate quality is essential for life. For humans, drinking…
AQAGCSE
8464
Chemistry
Potable water: Water that is safe to drink is called potable water.
AQAGCSE
8462
Physics
Potential Difference (Voltage)
OCRGCSE
Potential difference (voltage) is the energy transferred per unit charge between two points in a circuit, and it is one of the most heavily assessed concepts in OCR GCSE Physics electricity. Mastering this topic means understanding not only the definition and the key formulae V = IR and E = QV, but also how potential difference behaves differently in series and parallel circuits — a distinction that examiners probe in extended-response questions worth up to six marks. Candidates who can confidently connect a voltmeter correctly, perform unit conversions without error, and articulate the difference between potential difference and e.m.f. are consistently rewarded with top marks.
Physics
Examples should include the use of variable resistors, thermistors, and…
AQAA-Level
7408
Physics
The potential divider used to supply constant or variable potential…
AQAA-Level
7408
Physics
Potential dividers: (a) potential divider circuit with components
OCRA-Level
H556
Physics
(b) potential divider circuits with variable components e.g. LDR and…
OCRA-Level
H556
Physics
(i) potential divider equations e.g. Vout = [R₂/(R₁ + R₂)]Vin and V₁/V₂ =…
OCRA-Level
H556
Physics
(ii) techniques and procedures used to investigate potential divider…
OCRA-Level
H556
Economics B
Potential policy conflicts and trade-offs: a) Inflation and unemployment
Pearson EdexcelA-Level
9EB0
Economics B
B) Economic growth and negative externalities
Pearson EdexcelA-Level
9EB0
Sociology
Poverty
OCRGCSE
This study guide for OCR GCSE Sociology delves into the critical topic of Poverty, a cornerstone of the Social Stratification unit. It provides candidates with the essential definitions, theoretical debates, and empirical evidence needed to achieve high marks by dissecting how poverty is defined, measured, and explained in contemporary Britain.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge