Question

question 3
one calorie equals how many joules?
2.56
3.14
4.18
5.25
question 4
which of the following is a good example of a high calorie healthy food?
french fries
donuts
olive oil
milk chocolate

Explanation:

Question 3

Step1: Recall the conversion factor

The conversion factor between calories and joules is a known physical constant. 1 calorie is equal to 4.184 joules. Rounding to two decimal places, it is approximately 4.18.

Question 4

Step1: Analyze each option

• French Fries: High in calories but often fried (unhealthy due to trans - fats and high sodium in many cases).
• Donuts: High in calories, but high in sugar and unhealthy fats (not healthy).
• Olive Oil: High in calories (about 120 calories per tablespoon), but it is a source of monounsaturated fats which are considered healthy fats.
• Milk Chocolate: High in calories, but high in sugar and often has added unhealthy fats (not as healthy as olive oil).

Answer:

Question 3: 4.18
Question 4: Olive Oil