Grade 10 · CAPS

Grade 10 Circular Flow and Quantitative Elements

Economics practice questions and a worked example

The circular flow model maps how money, goods and services move between households, firms, government and the foreign sector, and Grade 10 pairs it with the quantitative side -- calculating GDP, GNI and the leakages and injections that keep the flow in or out of balance. These practice questions come from real past papers that ask learners to read a table of national account figures and calculate a missing value, not just describe the diagram from memory.

Worked example

2.4 Distinguish between leakages and injections.

Answer & explanation

Leakages mean withdrawal of money from the economy, e.g. Savings, Taxes, Imports. Injections mean additional income into the economy, e.g. Investment, Government spending, Exports.
Leakages are the ways money exits the economic cycle, reducing the flow of income. Examples include savings, where money is saved rather than spent; taxes, where money is paid to the government; and imports, where money leaves the economy to purchase foreign goods. Injections are the ways money enters the economic cycle, increasing the flow of income. Examples include investment, where businesses spend on capital; government spending, where the government injects money into the economy; and exports, where money comes into the economy from selling goods abroad. Understanding these helps explain how money flows in and out of an economy.

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Circular Flow and Quantitative Elements

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1.1.3 The nominal value of something is ...
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More practice questions

Explore additional Grade 10 Circular Flow and Quantitative Elements questions.

  • 2
    ESTIMATED VALUES FOR CERTAIN COMPONENTS OF NATION OF WINGDALE'S ECONOMY IN 2016 Savings: R100 billion Investments: R120 billion Tax revenue: R210 billion Government expenditure: R225 billion Total imports: R190 billion Total exports: R175 billion (Source: www.google.com) 2.2.2 Why are leakages and injections not always equal?
  • 3
    ESTIMATED VALUES FOR CERTAIN COMPONENTS OF NATION OF WINGDALE'S ECONOMY IN 2016 Savings: R100 billion Investments: R120 billion Tax revenue: R210 billion Government expenditure: R225 billion Total imports: R190 billion Total exports: R175 billion (Source: www.google.com) 2.2.3 Calculate Wingdale’s total leakages for 2016 using the information given in the table above.
  • 4
    ESTIMATED VALUES FOR CERTAIN COMPONENTS OF NATION OF WINGDALE'S ECONOMY IN 2016 Savings: R100 billion Investments: R120 billion Tax revenue: R210 billion Government expenditure: R225 billion Total imports: R190 billion Total exports: R175 billion (Source: www.google.com) 2.2.4 What equation would you use to work out the total injections from an economy?
  • 5
    2.5 How does gross domestic product relate to economic growth?

Common mistakes

  • Confusing leakages (savings, taxes, imports -- money leaving the flow) with injections (investment, government spending, exports -- money entering it), and assuming they must always be equal -- in reality they only balance at equilibrium. A common calculation slip is adding when a question asks for total leakages but a value in the table is already a net figure.

Aligned to CAPS Grade 10 Economics — Circular Flow and Quantitative Elements. Curriculum source: CAPS for the FET Phase, Department of Basic Education.