What is the standard model?
The standard model is a 'catalogue' of subatomic particles (the smallest building blocks of everything in the universe). It categorises these subatomic particles based on their properties and has predicted the existence of particles that were undiscovered at the time - such as the Higg's Boson, which was discovered in 2012.
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Related Physics A Level answers
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A cup of tea contains 175 g of water at a temperature of 85.0 °C. Milk at a temperature of 4.5 °C is added to the tea and the temperature of the mixture becomes 74.0 °C. What is the internal energy lost by the water? What is the mass of the milk?
Find an expression for the escape velocity of a test object.
What conditions are required for simple harmonic motion?