The Total Mass of an Orange and its Peeling
What is the total mass of the orange and peeling after the orange has been peeled?
After an orange is weighed and its mass is determined to be 200 grams, the peeling is removed, and both the peeling and orange are weighed. What is the total mass of the orange and peeling after the orange has been peeled?
Answer
200 grams
Explanation
If the exact same amount is placed on the scale the weight won't change due to the law of conservation of matter. After the orange has been peeled, the total mass of the orange and peeling will still be 200 grams.
Mass is a physical property of matter which measures the amount of substance in an object. It is measured in grams (g) or kilograms (kg).
According to the law of conservation of mass, when the orange is weighed with the peeling on, the mass of the peeling is included in the measurement. However, when the orange is peeled, and both the peeling and orange are weighed the mass of the orange and peeling will remain same as 200 grams.
Therefore, the total mass of the orange and peeling after the orange has been peeled is 200 grams.