What Are The Examples Of Physical Science?

• Ohms law

Ohms law proves that the current that's produced in a wire is actually proportional to the voltage that is applied to it. Projects can be carried out when this law is being considered. Testing a number of models is a good way of showing how this example of physical science works. Only simple apparatus and equipment are needed for this project. You will need a power supply, a voltmeter and an ammeter. The wire needs to be connected to the power supply through both of these devices. Then just change the voltage on the power supply and write down the different currents on the ammeter.

• Basic pendulum

A really basic pendulum can be used to test simple oscillatory motion. Different sized weights need to be placed on the bottom of the pendulum. The frequency at which the pendulum oscillates will be measured in this project. The apparatus that are required are a pendulum that has a number of weights, as well as a timer. The student will need to place a weight on the bottom of the pendulum, and start the oscillation. This is when the timer should be initiated. The number of full oscillations need to be counted within a chosen period of time, for pendulums of varying weights. The student then needs to find out that the heavier the weight, the lower the oscillation period is.

• Hooke's law and springs

Hooke's law states that by extending a spring, it is proportional to the force that is applied to the spring. This is really easy to test using a basic spring and some different sized weights that should be hooked on to the bottom. The spring needs to be suspended from a clamp and the weights must be added to the bottom of it. The extension of the coil can be measured from here on.

Biology