What is Inertia? The tendency of all objects to resist any change in motion. An object at rest will stay at rest unless a force causes it to move An object.

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Presentation transcript:

What is Inertia? The tendency of all objects to resist any change in motion. An object at rest will stay at rest unless a force causes it to move An object in motion will stay in motion unless a force causes it to stop.

How does mass affect inertia? More mass = more inertia *HARDER to start or stop an object Less mass = Less inertia *Easier to start or stop an object

Penny Activity Describe what we did: Placed a penny on top of an index card and attempted to “flick” only the card. The penny should stay in place on your finger. Describe what it indicates about inertia: Objects at rest want to stay at rest. A quarter would be easier to test because it has more mass and therefore, more inertia.