Physics Class 9 Practical 11 Important Viva Questions with Answers (Tension in String)

PRACTICAL 11

To find the tension in the strings by balancing a metre rod on the stands.

VIVA VOCE

1. What is the purpose of this experiment?
   Ans: The purpose is to find the tension in the strings by balancing a meter rod on the stands.

2. Describe the setup of this experiment.
 Ans: The setup involves placing a meter rod horizontally on two stands. Strings are attached to each end of the rod, and weights are hung from the strings to create tension.

3.  Why is it necessary to balance the meter rod?
   Ans: Balancing the meter rod ensures that the forces acting on it are in equilibrium, allowing us to accurately determine the tension in the strings.

4. How will you adjust the weights to achieve balance?
  Ans: We will adjust the weights on either side of the meter rod until it remains level and stationary, indicating that the tensions in the strings are balanced.

5.  What factors affect the tension in the strings?
   Ans: The tension in the strings is affected by the weights attached to them and the angle at which they are suspended from the meter rod.

6.  How will you measure the tension in the strings?
  Ans: We will measure the masses hanging from the strings and use the gravitational force formula (weight = mass × gravity) to calculate the tension in each string.

7. What precautions will you take during the experiment?
   Ans: Ensure the meter rod is securely placed on the stands, use weights of known masses, and make sure the strings are taut and free from any slack.

8.  How does balancing the meter rod help determine tension?
   Ans: Balancing the meter rod ensures that the forces acting on it are in equilibrium, meaning that the tension in one string is equal to the tension in the other string.

9.  How can you ensure the accuracy of your results?
   Ans: We will repeat the experiment multiple times, take the average of the tension measurements, and ensure that all equipment is properly calibrated.

10. What practical applications does knowing the tension in strings have?
   Ans: Understanding tension in strings is essential in various fields such as engineering, physics, and construction for designing structures, calculating loads, and ensuring stability and safety. 


Comments

Post a Comment

Popular posts from this blog

The Old (Ancient) Names of Peshawar: A Journey Through History

Image
Peshawar, a vibrant city nestled in the northwest of Pakistan, boasts a rich and diverse history. Its roots trace back to antiquity, making it one of the oldest continuously inhabited cities in the world. Throughout the ages, Peshawar has been known by different names, each reflecting its historical significance and cultural evolution. In this blog post, we'll take a journey through time to explore the ancient names of Peshawar and how they connect to the city's storied past. 1. Purushapura - The Early Beginnings: Purushapura is one of the earliest known names of Peshawar. It dates back to the period of the ancient Indian civilization and was used by the Indo-Greek kings who ruled the region. This name signifies Peshawar's ancient origins and its importance as a hub of trade and culture in the ancient world. 2. Vaehka - Under the Achaemenid Empire: During the reign of the Achaemenid Empire, the city was known as Vaehka. This name reflects the city's role as part of the
Read more

Police Issue Warning to Android Phone Users Regarding Unintentional 999 Calls Caused by New Feature

Image
  Police forces across the UK have raised concerns about a recent feature found on certain Android phones, which is leading to a significant influx of unintended and "silent" 999 emergency calls overwhelming emergency switchboards. The problematic feature, known as Emergency SOS , is triggered when users repeatedly press the side button on their phones. Police officials believe that this feature is partly responsible for the escalating number of emergency calls being made. Google, the developer of the widely used Android phone software, has stated that it expects phone manufacturers to release updates addressing this issue. Popular smartphone models such as Samsung's Galaxy, Google's Pixel, and OnePlus devices are among those running on the Android operating system. The National Police Chiefs Council explained that the recent Android software update introduced a new SOS emergency function that allows devices to call 999 by pressing the power button five times or mor
Read more

What goes around comes around (Essay 250 words)

Image
This saying, "what goes around comes around," is like a golden rule for life. It means that the things we do have a way of coming back to us. ". Our actions have consequences, and it encourages us to be good, work hard, and believe that things will turn out well if we do the right things. Imagine it's like planting seeds; if we plant good seeds by being kind, helpful, and respectful to others, those seeds will grow into positive experiences and relationships in the future. On the other hand, if we plant bad seeds by being mean or dishonest, we'll likely harvest negativity and problems later on. In our everyday experiences, we can see this principle in action. When we smile at someone, they often smile back. When we lend a helping hand, others are more likely to help us when we need it. It's a reminder that the world tends to reflect our actions and attitudes. Moreover, this saying also motivates us to keep going, even when things are tough. It reminds
Read more