The two main branches of physical science are physics and chemistry. Physics primarily deals with forces and the interaction of matter and energy. Chemistry, on the other hand, studies how interaction alters the properties of atoms, molecules and substances.Know More
Physics is the bedrock of all other sciences because it deals with how particles and objects move and transfer force. For example, the study of electromagnetism shows how electrical charges attract opposites and repel similar charges. This fundamental concept governs what types of atoms can undergo chemical reactions. Physics also deals with theoretical concepts such as what happens to objects as they move faster.
Chemistry, meanwhile, deals with the study of how matter's physical properties (the characteristics that make it unique) are affected during interaction with other matter or energy. Chemists work with a wide range of compounds and consult the periodic table of elements to determine what elements will interact and how they will behave. For example, the interaction of hydrogen and oxygen produces a molecule of water. Chemistry makes its way into almost every other scientific discipline and even culinary sciences. Heat, a form of energy, is applied to ingredients and causes the molecules to hopefully rearrange into a digestible and palatable form.Learn More
In physics, power is the rate at which work is done. Mathematically, it is the work done on an object divided by the time being considered. While work only considers the force that acts to cause a displacement, power considers the time it takes for the force to cause the displacement. Power can also be described as force multiplied by velocity, since velocity is displacement divided by time.Full Answer >
One example of a science project involving insulation is to measure the effects of an insulating container on the transmission of heat from a warm beverage. The comparison involves measuring temperatures at which people could comfortably pick up a cup of that beverage, using cups made of different materials.Full Answer >
A psychrometer consists mainly of two thermometers mounted side by side: a dry bulb thermometer and a wet-bulb thermometer. The dry-bulb thermometer determines the temperature of the air. The second bulb-covered with a sleeve of muslin, is wetted, and the water made to evaporate by blowing air across the cloth with a fan or by spinning the psychrometer in the air. Evaporation of water causes the bulb to coolFull Answer >
The two forces that determine whether an object floats or sinks are buoyancy and pressure. Buoyancy is determined by the density of the object and the density of the medium.Full Answer >