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World Population Growth Concepts

World Population Growth Concepts

Assessment

Interactive Video

Mathematics, Science

7th - 10th Grade

Practice Problem

Hard

Created by

Mia Campbell

FREE Resource

The video tutorial explains how to project the world population in 2020 using an exponential growth model. Starting with a population of 4.8 billion in 1985 and a growth rate of 1.8% per year, the tutorial demonstrates the use of the exponential function P(t) = P0 * e^(k*t) to calculate the population after 35 years. The calculation is performed step-by-step, resulting in a projected population of approximately 9.01 billion in 2020.

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9 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the world population in 1985?

3.5 billion

4.8 billion

5.2 billion

6.0 billion

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the estimated annual growth rate of the world population mentioned in the video?

2.5%

2.0%

1.8%

1.5%

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the exponential growth model, what does 'P sub 0' represent?

The population at the end of the period

The time in years

The initial population

The growth rate

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the annual growth rate expressed in the exponential function?

As a fraction

As a percentage

As a whole number

As a decimal

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of 'T' when calculating the population for the year 2020?

25

40

30

35

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which mathematical constant is used in the exponential growth formula?

E

Pi

Phi

Gamma

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final step in calculating the projected population?

Subtracting the initial population

Dividing by the number of years

Multiplying by the growth rate

Using a calculator to solve the equation

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