Properties of Matter

Front

What is mass?

Back

Mass is a measure of the amount of matter in an object, typically measured in kilograms or grams.

Front

What is weight?

Back

Weight is the force exerted by gravity on an object, calculated as the mass of the object multiplied by the acceleration due to gravity.

Front

How does gravity affect weight?

Back

Weight changes depending on the strength of the gravitational field; it decreases as the gravitational force decreases.

Front

What is a physical change?

Back

A physical change is a change in which some physical properties of a substance change, but its chemical identity remains the same.

Front

What is solubility?

Back

Solubility is the ability of a substance to dissolve in a solvent, such as salt dissolving in water.

Front

What are contact forces?

Back

Contact forces are forces that occur when two objects are in physical contact with each other, such as friction and tension.

Front

What are forces that act at a distance?

Back

Forces that act at a distance are forces that do not require physical contact, such as gravitational, electrical, and magnetic forces.

Front

What is the difference between mass and weight?

Back

Mass is constant and does not change with location, while weight can change depending on the gravitational pull at that location.

Front

What is an example of a physical property?

Back

Examples of physical properties include color, density, volume, and boiling point.

Front

What happens to the identity of a substance during a physical change?

Back

The identity of the substance remains the same during a physical change.