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Unit 4: Wave Models and Quantum Physics
Quick questions on The Standard Model: WACE Year 12 Physics Unit 4
2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What are the fundamental forces?Show answer
Four fundamental interactions govern all of physics. The strong force binds quarks into nucleons and nucleons into nuclei, acting only over nuclear distances. The electromagnetic force acts between charges over unlimited range. The weak force is responsible for beta decay and changing one type of quark into another.
What are force carriers?Show answer
In the Standard Model forces act by exchanging carrier particles (gauge bosons). The photon carries the electromagnetic force, gluons carry the strong force between quarks, and the W and Z bosons carry the weak force. The Higgs boson, confirmed in 2012, is associated with how particles acquire mass. Gravity's hypothetical carrier, the graviton, has not been observed.
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