# Position & Direction of Objects: Lesson for Kids

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• 0:04 Understanding Force and Motion
• 1:29 Measuring Force and Motion
• 2:22 Predicting Future Motion
• 3:02 Lesson Summary
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Lesson Transcript
Instructor: Maggie Donohoe

Maggie has experience teaching Kindergarten through fourth grade in multiple subject areas. She has a master's degree in curriculum and instruction.

Have you ever tried moving something heavy? Was it easier to pull it across the floor in a wagon, or push it with just your hands? In this lesson, we will learn about how force and motion can change the position of objects.

## Understanding Force and Motion

Imagine you're on a swing set, pushing your legs back and forth as fast as you can. What's happening to the swing you're on? Is it going higher? Or is it stopping?

A swing set is an example of how an object can be moved by applying force. Your legs going back and forth are an example of motion, which allowed you to go higher and higher each time.

Force is the push or pull of an object or a person. You can look at force in different ways. One easy way is by observing a spring. What would happen if you pressed down on a spring and then let go? It would fly up in the air! This type of force is what makes a pogo stick so bouncy. Your legs press down on the spring every time you jump, and that is how you can bounce high in the air!

Motion is the process of moving or changing place, or even just changing your body's position. For example, if you were playing soccer, the soccer ball would move every time you kicked it. Depending on how hard you kicked the ball, it would move just a little bit, or all the way down the field!

It's also important to remember that when observing motion, you need to have a reference point. For example, if you placed the soccer ball at the 10-yard line of a football field but kicked it to the 50-yard line, your reference point for observing motion would be the number of yards your ball traveled.

## Measuring Force and Motion

You can use force and motion to move an object. To measure and record force and motion, you need tools.

You can use a spring scale to measure the force of pulling an object. The mass, or basically how heavy an object is, tells you how much force is needed. For example, imagine pulling an object in a wagon. How much force would you need to pull a wagon up a hill? Probably a lot! Now imagine pulling the same wagon across a flat surface. It would take a lot less force to pull the wagon to your destination.

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