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

Energy Content of Food

Interactive Video
•
Physics, Chemistry, Biology
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
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