Question

How can we make a simple pendulum? ​

Answer 1

Answer:

Using a Bob,string,rigid support

Answer 2

Answer:

Galileo, a famous inventor who lived about 400 years ago, came up with an idea similar to this for making a time measuring instrument. His idea came from watching a lamp swinging back and forth.

You will need:

String

Weights (any objects which you can tie to the string)

A piece of wood about 1.5m long

A hook

Stopwatch

What to do:

1.Tie a weight onto the end of the piece of string.

2.Make a loop at the other end of the string.

3.Screw the hook into the piece of wood and balance the wood between the backs of two chairs.

4.Put the loop of string over the hook.

5.You have now made a pendulum and can begin to experiment to make a minute timer from it.

6.Start the weight swinging and time how long it takes to make 20 swings. Use a stopwatch for this.

7.Find a way to make the pendulum swing 20 times in 20 seconds.

Hope it helps.