Chapter 2: The Properties Of Matter

To find the density, you need to divide the mass by the volume. Density is a measure of how much mass is contained within a given volume. By dividing the mass by the volume, you can determine how much mass is present in a specific amount of space, which is the density.

To find the density of a substance, you need to know its mass and volume. Density is defined as the mass of a substance per unit volume. By dividing the mass of the substance by its volume, you can determine its density. Knowing what the substance is made of, how much it weighs, or its length and width are not directly related to finding its density. Mass and volume are the essential parameters required to calculate density accurately.

When an object has a density greater than water, it means that it is more compact and has more mass compared to the same volume of water. Due to the principle of buoyancy, objects with greater density than water will experience a greater downward force, causing them to sink when placed in a container of water. This is because the upward force exerted by the water is not enough to counteract the gravitational force acting on the object.

When a marble is placed in a half-filled glass of water, the water level will rise. This is because the marble displaces a certain volume of water equal to its own volume. As a result, the water level increases to accommodate the added volume of the marble.

The mass of an object does not change under normal circumstances.

A balance is a measuring instrument used to determine the mass of an object. It works based on the principle of comparing the weight of the object to a known weight. Solids and liquids both have mass, and therefore can be measured using a balance. This is because mass is a fundamental property of matter and is independent of the state of the substance. Therefore, the correct answer is that a balance can measure the mass of both solids and liquids.

A one-kilogram mass has a weight of 9.8 Newtons because weight is the force exerted on an object due to gravity. The weight of an object can be calculated by multiplying its mass by the acceleration due to gravity, which is approximately 9.8 meters per second squared. Therefore, a one-kilogram mass will have a weight of 9.8 Newtons.

The gram is the metric unit for MASS... not weight.

A standard mass is used with a balance to measure an object's mass. A balance works by comparing the mass of the object being measured with the mass of known standard masses. By placing the object on one side of the balance and the standard mass on the other side, the balance can determine the mass of the object based on how it balances out. Therefore, the correct answer is standard mass.