Chapter 1, Problem 19STP

Interpretation Introduction

Interpretation:

The statement which is not true for the mass needs to be identified.

Concept introduction:

The action of measuring the size or quantity of anything is defined as a measurement. Mass is usually told that how much matter is present in the object. It is measured in kilograms, pounds, grams, ounces or tones, etc. It does not change with the location.

Answer to Problem 19STP

The action of measuring the size or quantity of anything is defined as a measurement. Mass is usually told that how much matter is present in the object. So, option “it becomes less in outer space, further from Earth” is not true about mass.

Explanation of Solution

Reason for true statements: Because of following key points, given statements (a, b, d, and e) are true:

• Mass is a measure of force between Earth and object on which object resides.
• Mass is independent of gravity. Also, it is different from weight.
• Mass applies to amount of the matter that an object contains.
• Every matter has its particular mass.

A measure of matter's amount constituting the physical body is defined as mass. It is usually estimated by how much anything weighs. It is measured in kilograms grams, and, tones (Metric)/ounces and US units (Pounds).

The internal forces of the body balanced each other. So, there is zero change in the mass distribution of that body. Therefore, the center of mass will remain unchanged.

Conclusion

Reason for false statements: In outer space, mass of body will not change because it does not change according to the location. It remains constant.

Explanation: The mass remains the same on the moon because the quantity/ amount of matter do not change. For example: mass of an object will be constant.

Mass remain constant when place changes.