# Inverse Square Law Flashcards

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• Look through all the flashcards to see what’s on both sides.
• Make sure you understand the information on each card. If something’s unclear, click the link to the revision notes at the bottom of the page for more details.

2️⃣ Test yourself:

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• Check the answer and make a note of any cards you find challenging and need to go over more.

3️⃣ Consistently Review and Practice:

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• Regularly review all the flashcards to help you better understand and retain the information over time.

Note: We may include questions that have multiple correct answers. It’s useful to remember specific examples to understand these concepts better.

## What is the inverse square law in relation to light intensity?

The inverse square law describes how light intensity varies with distance. According to this law, the intensity of light is inversely proportional to the square of the distance from the light source.

As the distance between the light source and the plant increases, the light intensity decreases.

## What is the equation representing the inverse square law?

The inverse square law can be represented by the equation:
Intensity ∝ 1 / distance2

## How does the inverse square law affect the rate of photosynthesis?

As the distance from the light source increases, the light intensity decreases, reducing the rate of photosynthesis due to less available light energy for the plant.

## How can the rate of photosynthesis be measured?

The rate of photosynthesis can be measured by the volume of oxygen produced by a plant in a given time.

It is calculated by dividing the volume of oxygen produced by the time taken to produce it.

## Calculate the rate of photosynthesis if 15 cm³ of oxygen is collected in 5 minutes.

The rate of photosynthesis is calculated as:

Rate = Volume of oxygen / Time

Rate = 15 cm3 / 5 min = 3 cm3/min