Motion and Measurement of Distances

<p>They are less efficient and slower than modern alternatives. (D)</p> Signup and view all the answers

<p>The distance to be covered. (B)</p> Signup and view all the answers

<p>Motorised boats and ships (C)</p> Signup and view all the answers

<p>The new 'danda' and 'gilli' gave a different measurement of the desk. (C)</p> Signup and view all the answers

<p>To determine the appropriate mode of transportation. (C)</p> Signup and view all the answers

<p>Cricket equipment, like gilli and danda, can vary in size, leading to inconsistent measurements. (A)</p> Signup and view all the answers

<p>Adopting a universally accepted measuring tool like a ruler or measuring tape. (A)</p> Signup and view all the answers

<p>To determine if the cloth is sufficient for the garment. (C)</p> Signup and view all the answers

<p>To determine how much seed to sow and water is needed. (A)</p> Signup and view all the answers

<p>$rac{1}{8}$ (A)</p> Signup and view all the answers

<p>To know how much wood is needed to make the door. (D)</p> Signup and view all the answers

<p>Fold the string to measure the remaining length. (A)</p> Signup and view all the answers

<p>Standard units ensure consistency and accuracy in measurements across different people and places. (D)</p> Signup and view all the answers

<p>Circular motion (A)</p> Signup and view all the answers

<p>The motion must repeat after a fixed interval of time. (C)</p> Signup and view all the answers

<p>Periodic and oscillatory (C)</p> Signup and view all the answers

<p>The needle (A)</p> Signup and view all the answers

<p>A combination of rotational and translational motion (C)</p> Signup and view all the answers

<p>Periodic motion (C)</p> Signup and view all the answers

<p>It repeats its to-and-fro movement after a fixed time interval. (C)</p> Signup and view all the answers

<p>They all repeat a specific motion pattern over equal time intervals. (C)</p> Signup and view all the answers

<p>Body part sizes vary from person to person. (D)</p> Signup and view all the answers

<p>A metre rod cannot measure curved surfaces, while a measuring tape can. (B)</p> Signup and view all the answers

<p>Start the measurement from any other clear mark, and subtract that value from the final reading. (D)</p> Signup and view all the answers

<p>The suitability of measuring device for that task. (A)</p> Signup and view all the answers

<p>12.8 cm (B)</p> Signup and view all the answers

<p>To avoid parallax error and obtain an accurate measurement. (D)</p> Signup and view all the answers

<p>A measuring tape (D)</p> Signup and view all the answers

<p>Standardized units ensure uniformity and accuracy in measurements. (B)</p> Signup and view all the answers

<p>A bicycle wheel rolling down a straight path. (B)</p> Signup and view all the answers

<p>To encourage international trade and collaboration by establishing a common language for measurements. (B)</p> Signup and view all the answers

<p>Hand spans vary from person to person, leading to inconsistent measurements. (C)</p> Signup and view all the answers

<p>Motion that repeats itself after a fixed interval of time. (A)</p> Signup and view all the answers

<p>8,500 meters (D)</p> Signup and view all the answers

<p>A train moving on a straight track (B)</p> Signup and view all the answers

<p>Only periodic motion (C)</p> Signup and view all the answers

<p>Paces and footsteps vary in length from person to person. (D)</p> Signup and view all the answers

<p>To convey results accurately and understandably to others. (B)</p> Signup and view all the answers

<p>Objects in motion change their position with respect to time, while objects at rest do not. (D)</p> Signup and view all the answers

<p>To create a visual representation of the ant's path and direction of motion. (C)</p> Signup and view all the answers

<p>The direction in which the ant was moving. (B)</p> Signup and view all the answers

<p>Objects can move in various paths, including straight lines. (A)</p> Signup and view all the answers

<p>To accurately quantify the distances and lengths involved. (B)</p> Signup and view all the answers

<p>They exhibit a change in position over time. (A)</p> Signup and view all the answers

<p>The ant's navigation and path choice. (C)</p> Signup and view all the answers

Various means used for traveling or transporting goods over different terrains.

The period when motorized boats and ships became popular for transport.

Improvement and innovation in aircraft technology began in the early 1900s.

Methods used to determine the size or distance of objects, such as using gilli and danda.

The length of a desk measured using a danda and gilli in this example.

Ways people can reach destinations, e.g., by walking, bus, or train.

Understanding the distance helps decide the best transport method for a journey.

Knowing the size of objects helps in various practical applications.

Paheli and Boojho share a large desk for studying.

Determining the distance or extent of an object.

A traditional measuring tool used by Paheli and Boojho.

Using a piece of string marked for measuring distances.

Dividing string lengths to measure shorter distances.

Determining the dimensions of an object like a cupboard.

Calculating the length and breadth of a field or land.

Questions about lengths between points, like from Delhi to Lucknow.

Using body parts like forearms as length measures.

Various devices like scales and tapes used to measure lengths.

A measuring tool typically used for measuring lengths in centimeters.

Starting point on a scale for accurate measurement.

Placing the scale touching the object for accurate reading.

Not taking measurements if the scale is damaged or broken at the end.

Using appropriate tools for different objects, like tape for girth.

Calculating length by subtracting readings from a scale.

Motion in a straight line where distance changes continuously over time.

Motion that repeats itself after a fixed period of time.

Motion where an object moves in a circle, maintaining a constant distance from a fixed point.

The standard system of measurement used globally, e.g., meter, kilogram.

The basic unit of length in the SI unit system, equivalent to 100 centimeters.

Past reliance on non-uniform units caused discrepancies in measurements.

Determining the length between two points, crucial for understanding motion.

Different types of motion identified in nature, e.g., snail movement, river flow.

The process of determining the length between two points using standard units.

Agreed-upon quantities used to measure distances and lengths consistently.

An experiment observing the motion of ants attracted to sugar.

Marking an object's position over time to observe its movement.

Items that do not change position over time.

Items that change position within a given timeframe.

Using arrows to indicate direction and path of moving objects.

Movement along a direct path without deviation.

A weight hanging from a fixed point that swings back and forth.

Examples include swings, guitar strings, and drums.

A specific time period after which something repeats.

The movement of an object like a stone tied to a string when whirled.

Motion when an object moves along a surface, like a ball.

Movement of a wheel, like in a sewing machine or a bicycle.