# Position, Distance And Displacement

## Overview

Welcome to the fascinating world of Physics where we delve into the intricate relationship between matter, space, and time. In this course material, we will embark on a journey to understand the fundamental concepts of 'Position, Distance, and Displacement'.

Understanding the Concept of Position in Space: To begin our exploration, we will grasp the concept of position in space using the X, Y, and Z axes. By visualizing these axes, we can precisely locate objects in three-dimensional space. The position of an object can be uniquely identified through its coordinates on these axes, providing a comprehensive understanding of its spatial orientation.

Differentiating Between Distance and Displacement: A crucial aspect of our study involves distinguishing between distance and displacement. While distance refers to the total length of the path traveled by an object, displacement signifies the change in position from the initial point to the final point. Through thought-provoking examples and practical applications, we will delve into the intricacies of these concepts.

Accurate Measurement of Distance: Measurement plays a pivotal role in Physics, and we will learn to measure distance with utmost precision. By utilizing instruments such as the metre rule, vernier calipers, and micrometer screw gauge, we can determine distances with varying degrees of accuracy. Emphasizing the use of the metre as the unit of distance, we will hone our measurement skills to obtain reliable and precise results.

Demonstrating Directional Concepts: Direction is a key component in spatial analysis, and we will explore the concept of direction as a means of locating a point. Through the use of a compass and protractor, we will learn to determine bearings and interpret directions accurately. Graphical representations will aid in visualizing locations and orientations by axes, enhancing our directional comprehension.

Utilizing Rectangular Coordinates: For positioning objects with accuracy, we will employ rectangular coordinates as a reference system. By specifying coordinates along the X, Y, and Z axes, we can precisely locate objects in space. This methodical approach enhances our spatial visualization skills and enables us to navigate the complexities of positioning in a three-dimensional realm.

As we delve deeper into the intricacies of 'Position, Distance, and Displacement', we will unravel the mysteries of spatial relationships and equip ourselves with the tools to navigate the dynamic world of Physics.

## Objectives

1. Measure distance accurately using appropriate instruments like metre rule, vernier calipers, and micrometer screw gauge
2. Utilize rectangular coordinates for positioning objects accurately
3. Demonstrate the use of compass and protractor to determine direction
4. Understand the concept of position in space using X, Y, Z axes
5. Interpret graphical locations and directions using axes
6. Differentiate between distance and displacement

## Lesson Note

Understanding the concepts of position, distance, and displacement is essential for accurately analyzing motion in physics. These concepts form the foundation of kinematics and help us describe how objects move through space. In this article, we will delve into each of these concepts in detail, exploring their definitions, differences, and practical applications.

## Lesson Evaluation

Congratulations on completing the lesson on Position, Distance And Displacement. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.

You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.

Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.

1. What is the difference between distance and displacement in Physics? A. Distance is a scalar quantity while displacement is a vector quantity B. Distance and displacement are both scalar quantities C. Distance and displacement are both vector quantities D. Distance is measured in meters while displacement is measured in seconds Answer: A. Distance is a scalar quantity while displacement is a vector quantity
2. Which instrument is best suited for measuring small distances with high accuracy? A. Micrometer screw gauge B. String C. Metre rule D. Vernier calipers Answer: A. Micrometer screw gauge
3. In Physics, what does the concept of position refer to? A. The amount of space an object occupies B. The location of a point in space using X, Y, Z axes C. The speed at which an object moves D. The temperature of an object Answer: B. The location of a point in space using X, Y, Z axes
4. When using a protractor and compass to determine direction, which concept is being utilized? A. Rectangular coordinates B. Bearing C. Distance D. Displacement Answer: B. Bearing
5. Which unit is commonly used for measuring distance in Physics? A. Seconds B. Kilograms C. Metres D. Litres Answer: C. Metres

## Past Questions

Wondering what past questions for this topic looks like? Here are a number of questions about Position, Distance And Displacement from previous years

Question 1

You are provided with a loaded boiling tube with a centimeter scale fixed inside it, a transparent vessel filled with water, standard masses 2 g, 5g and 10 g, and a slide vernier caliper. Use the diagram above as a guide to perform the experiment.

(i) Use the slide vernier caliper to measure and record the external diameter, D, of the boiling tube.

(ii) Evaluated A = 0.25? D2 ${}^{2}$, where ?  = 3.14.

(iii) Place the loaded boiling tube gently in the water in the transparent vessel such that it floats vertically.

(iv) Read and record the depth of immersion, y, from the zero mark of the scale fixed inside, the boiling tube.

(v) Add a mass, m = 2g, to the boiling tube. Read and record the new depth of immersion, y, from the zero mark of the scale.

(vi) Evaluate h = (y - y0 ${}_{0}$), log h and log m.

(vii) Repeat the experiment for four other values of m = 5g, 7g, 10 g, and 12g. In each case, record y and evaluate h, log h, and log m.

(viii) Tabulate the results.

(ix) Plot a graph with log m on the vertical axis and log h on the horizontal axis starting both axes from the origin (0,0).

(b)(i) State in full the law on which the experiment in (a) is based.

(ii) A uniform cylindrical rod is 0.63 m long and it has a cross-sectional area of 0.1 m2 ${}^{2}$. Calculate the depth of immersion of the rod if it floats vertically in a liquid of relative density 1.26. [density of rod =720 kg m?3 ${}^{?3}$, g = 10 m s?2 ${}^{?2}$].

Question 1

A lorry accelerates uniformly in a straight line with acceleration of 4ms-1 and covers a distance of 250 m in a time interval of 10 s. How far will it travel in the next 10 s?

Question 1

Which of the following statements is true of nuclear fission?

Practice a number of Position, Distance And Displacement past questions