Lab lesson 7 (IP7)!

So this worksheet was "The Measurement of Time - Pendulum." I was at first confused with terms like oscillation period and etc, but I realised what they were went i searched GOOGLE! (:

So a pendulum.

yep^ confused me alot.

So a simpler one.

Applications of Pendulums in daily life:

• Inertial Guidance systems used in some aircraft instrumentation, missile guidance, and spacecraft.

• Seismographic instruments use a modification of the basic pendulum.

• Surveyors and construction workers use a pendulum [commonly called a "plumb bob"] to accurately locate their transits or levels over a specific spot on the Earth's surface.
• Some vehicle security systems use a modification of the pendulum principle to detect physical "shocks" to the vehicles, as would occur during a break-in.

Reflection:

Basically this experiment was not hard to do. Apart from the part that we you have to stop exactly when point A -> point B. Using a stop watch and the human reaction having a 0.3 second delay in reaction time, this resulting in inaccurate readings when the pendulum's period was timed. The other hard thing in this experiment was the rounding off. When the answer was 60.53cm, i should have rounded it off to one decimal point (60.5cm).

Another point to was that this experiment was a first for me so I gained much valuable insight and knowledge for this encounter

Summary:

• A pendulum is a weight suspended from a pivot so that it can swing freely
•  When a pendulum is displaced from its resting equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position.