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Grade
10/10

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If an object is in motion that means that it is not at rest. Motion is the continuous change in position of an object.

We saw an object in motion in the activity below. As you can see, the ring had to be in motion in order for the marker to drop into the jar which was the main focus

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Newtons first law states that and object will stay in motion or stay still unless acted upon by an unbalanced force.

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Balanced forces cause there to be no change in motion. When a balanced force acts upon an object, it will stay at rest and is balanced.

The image below shows an object that is balanced. The reason why it is balanced is because the two balls have equivalent force. That is also why you don't see any movement so therefore it is at rest/balanced.

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If something is unbalanced that typically means something is in motion. If something is unbalanced that means that two forces are acting upon an object not equally.

This was seen in the tug of war activity. One side of the rope had more force than the other which made that an unbalanced force.

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Force is the strength and power applied to an item.

We saw this when doing the tug of war activity. One side of the rope had more force than the other. The team with more force won because they had more strength and power/ force. Like newton said, the object stayed in motion until acted upon an unbalanced force.

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Mass it the measure of inertia of an object. Things with larger mass have more inertia than objects with lower mass do. Items that are heavier have more inertia and are harder to move.

For example, a bucket filled with sand is going to be heavier than that same bucket without sand. That is because the one with sand has more mass/inertia which also means it is heavier. Which one is going to be easier to push? The one without sand, obviously because its not as heavy.

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When an object is at rest, it is not in motion. An object will stay at rest unless acted upon by an unbalanced force

We saw items at rest when doing the activity where we had to quickly take a sheet out from under objects without having the items move. This is and example of something at rest because the items did not move and therefore were not acted upon by an unbalanced force.

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Inertia is the tendency of all objects to resist any change in motion. There are three types of inertia. There is the inertia of rest, motion and direction. The inertia of rest is kind of like an object at rest which is defined in the 4th box. The same example is used as well.

Inertia can be seen in the activity shown below. Not that specific attempt though. In this activity you were supposed to pull the sheet from under the objects without moving those items. In this attempt shown below, that did not happen but it was supposed to. Imagine that this try did was it was supposed to. It would show inertia because the objects did not move. They resisted change in motion which means no movement or change in direction.