Stethoscope Project

Stethoscope

Doctors use various complicated tools to monitor the health of patients. You can make a few of these tools like the stethoscope at home easily! Doctors use stethoscopes to listen to a patient’s heartbeat. In this project, you will learn to make your own stethoscope. Once you build a stethoscope, you will be able to hear the difference between active and resting heartbeat as well as the difference between your heartbeat and the heartbeat of others in the house.

Aim:

To make a homemade Stethoscope.

Apparatus Required

  • A tubing piece
  • Scissors
  • A balloon
  • A timer
  • Rubber band

Procedure

  • Take a tubing and fit a funnel at both the ends.
  • Enlarge the balloon by blowing and then let the air out.
  • Cut top third of the balloon.
  • Stretch the top of the balloon tightly above the open end of any one of the funnels. You can use a band to hold it in the correct place.
  • Sit in a quiet place and keep the end of the funnel with a balloon on your chest, towards the left centre on the skin.
  • Keep the other funnel over the ear. You can hear a little beating sound.
  • Make use of the timer to count the number of beats you hear in 20 seconds. Multiply this value by three to calculate how much your heart beats in a minute.
  • Try doing more tests like running for 5 minutes and check how fast your heart beats.

The doctors listen to your heart beats for two seconds with a stethoscope. The first sound is a low pitched and longer sound while the second beat is higher and shorter sound.


Practise This Question

Statement 1 : Two different elements can have same number of protons. 
Statement 2 : The number of protons is called the atomic number of the element