Position and Motion

Position

Look at the objects in the room below. How can below. How can w. How can you describe the location of the teddy bear? he teddy bear?eddy bear When you tell where something is, you describe its position. Position is the location of something. You can say the teddy bear is on the table and to the right of the spinning wheel. What other words can you use to describe the position of the teddy bear?

Try This!

In small groups, take turns in describing the positions of objects in your classroom. The first person to guess the correct object is the winner!

ethinghin is, you des ou de e location of som location of som

dy bear is on the ear is on the With a partner, take turns to describe the position of the other objects in the room. pinning wheel. W ing wheel. se to describe th describe tduc artner, ta describe the po other objects

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Distance and Direction We can more accurately describe the position of an object by describing its distance and direction. Distance is a measurable amount of space between one object and another. You can measure distance using different units. For objects that are close to each other, you can use units such as millimeters, centimeters and inches. For objects further away, you can use meters, feet and yards. For even further distances, you can use kilometers and miles. Go Online! Learn more about position, distance and direction on the NGScience website. QuickCode: E9V8 ducation ou atioon nOnline! Learn more abo distance and the NGScie uickCod Direction is the course or line from one object to another. You can use words such as left, right, north, south, east and west to describe direction. By using both distance and direction, you can describe position accurately.

My house is two kilometers north of my school. Activity 11.1AB Regal Re course or line from o se or line fr u can use words suc n use word east and west to de st and west t both distance and d h distance and be position accurate osition accurate My hous m R

The green car is two The green car is two centimeters behind the orange car.

Try This!

Describe the position and direction of your house to your school.

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Describing Motion g Motion Motion

Look at the skier in the picture. How does the kier in the picturn the pictur position of the skier change? he skier changekier chang We know that something has moved when w that somethinw that somethi it has changed position. When something is changed positio hanged positio in the process of changing position, we say it e process of chrocess of ch is in n motion. We can describe and measure motion. We c motion in different ways. motion in differe ion in differe

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With a partner, compare the motions of the people and objects on these two pages. How are the motions different?uca wo ?

The skier is in motion mo on when he is in the process of he proc ce o changing position. sit tion.

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Go Online!

With a partner, go to the NGScience website and watch the ‘Describing Motion’ video. Take turns to describe the motion of different objects. QuickCode: S7Q7

We can describe motion in many ways. A bowling ball moves in a straight line towards the pins. On a swing you move back and forth. What’s your favorite ball sport? What words can you use to describe the motion of the ball?eduscribe motion in e motion in ball moves in a s moves in a ll i t i n a swing you m a swing you md ed What’s you What wo describ

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Think about the different things in a playground. How can you describe your motion when you play on different equipment? duca re On a swing, you move back and forth. On a seesaw, you move up and down. On a carousel, you move round and round.

nd forth. O AB A downhill skier moves from side to side in a zigzag motion. Activity 11.2 p und a ga al 11.2 wn. On

What are some other ways we can describe motion?

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Try This!

The fastest man on Earth can run 100 meters in less than ten seconds!

Time how long it takes you to run 100 meters. Compare your time with your friends.

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Measuring Motion Like describing the position of an object, we can use distance and direction to describe and measure motion. An airplane travels about 3,200 kilometers in an easterly direction to fly from San Francisco to Denver. You can also use time to describe motion. Time is how long it takes for something to move from one position to another. You can measure time using seconds, minutes and hours. Activities 11.3 – 11.4AB Use distance and direction to describe your motion as you get from your home to your school. gal Tim T from on from time using time u ga a ed an also analso ducation bject, we t, we describe and cribe and 200 kilometers i 200 kilometers from San Franc rom San Franc edu d Use distan describe from

e Compare the motion of the bicycle and the motorbike. How is the motion different? The motorbike is moving much faster than the bicycle. How fast or slow something Think Deeply It takes an airplane about two hours to fly from New York to Chicago. It takes a train about 20 hours to r than thing ca a T moves is its speed. We can measure speed by sure speed byure speed by travel the same distance. calculating the time it takes an object to cover a certain distance. object to cover ect to cover Which moves at the greater speed? How do you know? If a cyclist rides 30 kilometers in one hour, ters in one hour in one ho we can say the speed of the cyclist was 30 he cyclist wascyclist kilometers per hour.

AB Activity 11.5al 1.5

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