DESCRIBING MOTION

•Many of the things around us move. Some move slowly like the turtles and clouds, others move much more quickly like the satellites.

•Look around you and observe. Give some objects that are moving based on your observation.

•This module provides you with scientific knowledge and skills necessary to describe motion along a straight path. You will learn to describe the motion of objects in terms of position, distance travelled, and speed.

You will also learn to analyze or represent motion of objects using charts, diagrams, and graphs.

•When can we say that an object is in motion?•How do we describe the motion of an object?

Where?•Before you will be able to describe the

motion of an object, you must first be able to tell exactly where it is positioned. Describing exact position entails two ideas: describing how far the object is from the point of reference and describing its direction relative to that point of reference.

•You will learn about the importance of point of reference and direction when you perform Activity 1.

Activity 1: Where is it?

Objective•In this activity, you should be able to describe in words the position of an object within the room or the school ground.

Procedure: 1.Choose an object. Hide it

somewhere. (Prescribed area.)2.On a piece of paper, describe

where you will find the object.3.Give it to the other group and

let them find it.

Answer:

•Q1. Were you able to find the object? Was it easy or difficult?•Q2. Is the instruction clear and easy to follow? What made it so?

Next procedure:

4. If they found it. Give the paper back to the owner. (grp) Revise the instruction to make it more helpful. Write it on a separate sheet of paper and let another group use it to find the object.

Answer: •Q3. Were they successful in finding

the object? Was it easy for them or difficult?•Q4. What other details or

information included in your instruction that made it clearer and easier to follow?•Q5. In your own words, what is point

of reference and how important it is?