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Exploring Universal Forces: Electromagnetic, Strong Nuclear, Weak Nuclear, and Gravitational Forces

Discover the fascinating world of universal forces, including electromagnetic forces that combine electric and magnetic aspects to interact with charged particles. Learn about electric forces between charged objects, magnetic forces on certain metals and moving charges, and the powerful forces holding protons and neutrons together. Explore the range and strength of strong nuclear force, the role of weak nuclear force, gravitational force, Newton's law of universal gravitation, and the impact of mass and distance on gravitational force. Delve into centripetal force in our moon's orbit and the tide cycle caused by the gravitational pull of the moon on Earth's oceans.

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Exploring Universal Forces: Electromagnetic, Strong Nuclear, Weak Nuclear, and Gravitational Forces

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  1. Universal Forces 12.4 Notes

  2. define electromagnetic force • A combo of electric and magnetic force that is associated with charged particles. • Electric force and magnetic force are the only forces that can attract and repel.

  3. What are electric forces? • Forces that act between charged objects or particles (electrons and protons). • Opposite charges attract and like charges repel.

  4. What are magnetic forces? • Forces that act on • certain metals, • poles of magnets and • on moving charges.

  5. What type of force acts between particles of the same electrical charge? • Electric force

  6. What are the two forces that hold a positively charged proton nucleus together? • Strong nuclear force and weak nuclear force

  7. explain strong nuclear force • A powerful force of attraction that acts only on protons and neutrons holding them together

  8. What is the range over which strong nuclear force acts? • Approximately equal to the diameter of a proton

  9. How strong is strong nuclear force? • 100 times stronger that the electric force of repulsion at these distances

  10. explain weak nuclear force • It is another powerful nuclear force yet it is weaker than strong nuclear force and acts over a shorter range.

  11. What is gravitational force? • An attractive force between any two masses.

  12. Newton’s law of universal gravitation • Every object in the universe attracts every other object.

  13. What factors affect gravitational force? • Mass and distance

  14. describe centripetal force as it relates to our moon’s orbit • Centripetal force is a center-directed force that continuously changes the direction of an object to make it move in a circle. • The center-directed force of Earth’s gravity pulls the moon into a nearly circular orbit around Earth.

  15. explain the tide cycle • The gravitational pull from the moon produces 2 bulges in our oceans. • One bulge is on the side closest to the moon, • the other bulge is on the side farthest from the moon. • The Earth rotates once per day beneath these 2 bulges which results in high and low tides.

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