Galileo Galilei, Simple Pendulum and Graphs

Who was Galileo Galilei?

He was an Italian math professor and scientist born in the 17th century who was the first to implement a scientific approach to investigate a problem. This approach is known as the scientific method.

What is a simple pendulum?

This is a device composed of a light inexpensive string suspended from a fixed support.

What is the use of a simple pendulum?

This is used to measure time, show the changes in energy from potential to kinetic energy, and determine the value of gravitational Acceleration of a certain place.

What are examples of instruments with a pendulum?

A clock, a swing, and a wrecking ball

What are the factors that affect the period of a pendulum?

1. The length of the pendulum from the point of extention to the center of the Bob

2. The mass of the pendulum Bob

3. The amplitude or angle of the swing of

What is a graph?

This is a representation of data obtained from an investigation or experiment conducted

What are the parts of a graph?

• Title

• Axes

• Results/points/bar

• Scale

• Grid

• Key/legend

What is the function of a title?

This is used to tell what the graph is about and is written above the graph underlined in capital letters.

What is the scale?

This shows the representation of the actual data on the grid and it written below the title on the right hand size.

What is a grid?

This refers to the small boxes on the graph paper.

What is a key/legend?

This is used to tell the meaning of the symbols on the graph

What is an independent variable?

This is the variable that is being altered or investigated.

What is the dependent variable?

This is the variable that may be affected by a change in the independent variable

What are the results?

These are represented by points or bars on the grid.