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Understanding Laws of Motion in 8th Grade Science

Explore inertia, velocity, acceleration, friction, weight, air resistance, projectile motion, centripetal force, and gravity in this comprehensive guide to fundamental principles of motion. Learn how objects resist change in motion, calculate speed, and more.

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Understanding Laws of Motion in 8th Grade Science

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  1. Laws of Motion Vocab2 8th grade Science - Fremont

  2. Inertia • The tendency of an object to resist change in motion.

  3. speed • speed is calculated by dividing distance by time. Example: mile per hour

  4. Velocity • is speed (distance over time) plus DIRECTION. • example: 35 mph North

  5. Acceleration • is a change in velocity • example: speeding up, slowing down, or changing direction

  6. friction • a force caused by two surfaces rubbing together and works against the motion.

  7. Weight • the measurement of the gravitational pull on an object.

  8. Air resistance • a force that opposes the motion of objects through the air.

  9. Projectile • An object that has both horizontal & vertical motion as it follows an arched path due to gravity & the force of being “thrown,”

  10. Centripetal force • a force that causes an object to follow a curved path.

  11. Gravity • a force of attraction between objects which depends on the mass of the objects & how close they are to each other.

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