Physics Help: Video Series

When building a physics project, the subject of the investigation must first be determined, followed by an understanding of the theoretical background. Look at alternatives for pushing physics experiments into unexplored territory with help from a science teacher in this free video on physics.

In order to calculate averages, simply add up the numbers and divide the sum by the amount of numbers that were provided. Practice calculating averages with help from a science teacher in this free video on calculating averages.

When calculating ratios, think of it as finding out how much of a total is in one place and how much of the total is in another place. Discover how ratios differ from fractions with help from a science teacher in this free video on calculating ratios.

By definition, density is mass divided by volume, and density tells how heavy an object is. Find out how to measure mass and volume, so that density can be calculated with help from a science teacher in this free video on calculating density.

In order to create an electromagnet, a copper wire or other conductors needs to be wrapped around a cardboard tube and connected to a battery. Find out how to increase the strength of a homemade electromagnet with help from a science teacher in this free video on electromagnets and physics.

In order to build a circuit with light bulbs, a cell is needed that matches the voltage of the light bulb. Learn how to avoid burning out a circuit made with light bulbs with help from a science teacher in this free video on light bulbs and physics.

When building a circuit board, use wood or plastic as a base, place brass bolts into drilled holes, and use crocodile clips to connect connector wire. Discover how to solder wire onto a lamp holder with help from a science teacher in this free video on circuit boards.

LEDs, or light-emitting diodes, are current functioning devices that, when connected the wrong way, have almost an infinite resistance. Learn about using integrated circuits for multiple LEDs with help from a science teacher in this free video on circuits and LEDs.

When building a circuit with a battery, it's important to note that a battery is a collection of a number of cells. Learn about how a higher voltage battery will create a brighter bulb in a flashlight with help from a science teacher in this free video on circuits and batteries.

The components within an electronic circuit are much lower, in terms of energy consumption, than an electrical circuit. Find out how to use a transistor to create an integrated circuit with help from a science teacher in this free video on electronic circuits.

In a series circuit, there is only one single path that the electricity can make. Learn about how a single line should pass through every component of a series circuit without interruption with help from a science teacher in this free video on series circuits.

A parallel circuit is slightly more complicated than a series circuit, and a parallel circuit is the circuit that is used in homes. Connect multiple series circuits to the same power supply to create a parallel circuit with help from a science teacher in this free video on parallel circuits.

A model house circuit is the same as the circuits that exist in a real house, yet it contains a limited number of components. Build an electrical circuit in a model house with a power supply and a switch with help from a science teacher in this free video on electrical circuits.

The purpose of biomass is to store energy from the sun, and it does so by using the process of photosynthesis to prevent the atmosphere from becoming too warm. Discover how biomass stores carbon dioxide with help from a science teacher in this free video on biomass and energy.

Protons and electrons have almost no similarities, besides the fact that they're both involved in the structure of an atom. Discover how some apparent similarities between protons and electrons reveal further differences with help from a science teacher in this free video on protons and electrons.

X-rays are an invisible, penetrating radiation that is a form of electromagnetic radiation. Find out how X-rays can produce scintillation when illuminated with certain materials with help from a science teacher in this free video on X-rays and radiation.

A magnet will sometimes levitate when two identical poles repel and push each other apart. Find out how to make magnets levitate by using electromagnets, as opposed to permanent magnets, with help from a science teacher in this free video on magnets and physics.

When calculating the amount of energy used in a home, determine the cost of an appliance against the kilowatt hours that it uses. Calculate energy, and weight it against what an electric company charges, with help from a science teacher in this free video on energy and physics.

In order to measure the mass of the Earth, the density must first be determined. Discover how to measure the weight of the Earth in kilograms with help from a science teacher in this free video on calculating mass and physics.

Barometric pressure is measured with either a mercury barometer or an aneroid barometer. Discover why mercury barometers are often used in laboratories with help from a science teacher in this free video on barometric pressure.

Scales and balances are constructed by balancing two objects against one another on something like a spring. Discover how gravity factors into a scale or balance with help from a science teacher in this free video on measurements in physics.

When making an electric motor with a 9-volt battery, there are two main components, which include a pair of field magnets and a coil. Learn about passing an electric current through a coil with help from a science teacher in this free video on electric motors.