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Grade
9/10

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A force is a push or a pull. This was seen Marker and hoop experiment, because the hoop was balanced with gravity, which is why when the the hoop was removed, the marker immedietly fell; there was no force holding it up.

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Mass is the measure of the amount of mas in an object. Mass is not measured in this experiment.

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Newton's first law states that any moving or resting object will stay in the same direction at the same speed, unless it is is contacted with an unbalanced force.

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An object is in motion when it is pushed for pulled by a force. This is seen when I pulled the hoop away. In this instance, the force is generated by me.

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Two forces that have a net force of 0N. A balanced force will not cause a change in an object's motion. This is seen when the marker rests upon the hoop.

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Two forces that have a net force that does not equal 0. An unbalanced force will cause change in an objects motion. This is seen in the activity when the hoop is pulled away, and the marker falls.

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Inertia occurs when object moves in a certain, unchanging direction, at a certain, unchanging, speed. This objects speed or direction can only be changed by another force. This is seen when the marker drops in a straight line, downwards. The force in this instance is gravity.

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An object is at rest when it has no motion. This is seen with the glass jar, because it is not moving, and does not move at all throughout the activity.