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Motion

Language:	English
Description:	Motion is a fundamental concept in science. This lesson explores different causes of motion, such as pull, push, drop (gravity), and also introduces the term force.
Target:	Key Stage 1, Key Stage 2
Category:	Demonstration, Exercise, Laboratory
Discipline:	Static forces, Dynamic forces, Gravity, Motion
Learning objectives:	Knowing different ways of setting an object into motion. Knowing a cause of motion (push, pull, drop, slide) in terms of influence of a force. Knowing about the relation between speed, distance and time.
In class:	Discuss what causes an object to move. Let the students suggest different ways of setting an object into motion and list them on the whiteboard. For example pushing, pulling, throwing, dropping, sliding, adding a motor. Discuss that the cause of motion is called force. Discuss how the size of the force influences the motion. Discuss relation between speed, distance and time. Discuss how this can be visualized and explored in Algodoo. Let the students create scenes in Algodoo using the suggestions you came up with together or let them use their own ideas. Help the students make decisions and ask guiding questions. Encourage the students to follow the procedure Create – Predict – Interact – Evaluate. Allow the students to follow-up and share their experiences in class after the simulation.

Steps in Algodoo

Create a scene

Create a horizontal plane and one plane as a slope. Make objets that can roll, slide, driven by a motor, fall.

Make a prediction

How can the object be set into motion? What makes the object stop?

Run interact

Explore different ways of moving the object. Rotate the planes (if you have a computer

with accelerometer, tilt the PC) and move objects, watch the object slide down the

plane or fall through the air. Turn off and on gravity and explore its influence on the motion. Grab the object by using the hand tool. Push and pull and make the objects move in different ways.

Evaluate

What behaviour is observed with the different wheel shapes?

How long do they roll?

Adding a motor to the hinge and visualizing velocity arrows may help the analysis.

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