Energy Content of Food

Energy Content of Food

Assessment

Interactive Video

Physics, Chemistry, Biology

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial demonstrates the energy content in food by burning a cream cracker in liquid oxygen, highlighting the role of oxygen in energy release. It compares the energy content of peanuts and dried potatoes using a food calorimeter, showing that peanuts, high in fat, have more energy than potatoes, high in carbohydrates. The process involves igniting the food in a calorimeter and measuring the temperature change in water, indicating the energy released. The tutorial concludes that fat significantly increases energy content in food.

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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is demonstrated by burning a cream cracker in liquid oxygen?

The melting point of the cracker

The color change in oxygen

The energy content of food

The taste of the cracker

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the body release energy from food?

By storing it in the liver

Through a controlled reaction using oxygen

By converting it into fat

By exhaling it as carbon dioxide

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of a food calorimeter?

To calculate the temperature of food

To assess the color of food

To measure the weight of food

To determine the energy content of food

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial temperature of water in the calorimeter when testing dried potato?

29°C

25°C

30°C

21°C

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How much does the water temperature rise when 1 gram of dried potato is burned?

From 20°C to 24°C

From 21°C to 29°C

From 21°C to 25°C

From 25°C to 30°C

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the energy content of 1 gram of peanuts compared to dried potato?

20 K per gram for peanuts, 10 K per gram for potato

15 K per gram for both

10 K per gram for peanuts, 20 K per gram for potato

5 K per gram for peanuts, 15 K per gram for potato

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do peanuts have a higher energy content than dried potato?

Because they are roasted

Because they are high in fat

Because they contain more water

Because they are high in carbohydrates

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What role does fat play in the energy content of food?

It decreases the energy content

It has no effect on energy content

It makes food less digestible

It significantly increases the energy content