3 connecting motion with force
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Force can be a push or pull that either changes or does not change an object's motion depending on whether the net force is balanced or unbalanced. Unbalanced forces will cause changes to an object's velocity due to inertia, the tendency of objects to resist changes in motion, with more inertia for objects with greater mass. Isaac Newton's first law of motion states that objects at rest will stay at rest and moving objects will stay in motion with constant velocity unless acted upon by an unbalanced force, such as friction between surfaces.
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3 connecting motion with force
- 1. Connecting Motion with Force
- 2. Force - a push or pull one body exerts on another. -Force does not always change velocity. Balanced forces- forces on an object that are equal in size and opposite in direction. Ex: Tug of War.
- 3. Unbalanced (Net) Force- forces on an object are not equal in size or direction. - This causes a change in the velocity of the object.
- 4. Inertia - the tendency of an object to resist any changes in its motion. - velocity remains the same unless a force changes it. - The more mass an object has, the greater its inertia. Ex: bowling ball vs. tennis ball
- 5. Isaac Newton’s 1 st law of motion- A moving object will stay moving until a force stops it. An object at rest will stay at rest until a force moves it. - Also called the Law of Inertia .
- 6. Friction - force that opposes motion between 2 surfaces that are touching each other. Ex: Friction is the force between you and the ground so you can walk.