Flashcard: Mechanics – Leaving Cert Physics Terms

Displacement – is distance in a given direction. Speed – is the rate of change of distance with respect to time. Velocity – is the rate of change of Displacement with respect to time. Acceleration – is the rate of change of Velocity with respect to time. Scalar Quantity –… Continue Reading →

Flashcard: Heat – Leaving Cert Physics Terms

Temperature – of an object is a measure of the hotness or coldness of that object. Thermometric Property – is any physical property that changes measurably with temperature. Specific Heat Capacity – of a substance is the heat energy needed to change one kilogram of the substance by one Kelvin…. Continue Reading →

How small is an atom?

Just how small are atoms? And what’s inside them? The answers turn out to be astounding, even for those who think they know. This fast-paced animation uses spectacular metaphors (imagine a blueberry the size of a football stadium!) to give a visceral sense of the building blocks that make our… Continue Reading →

Flashcard: Electricity – Leaving Cert Physics Terms

Coulomb’s Law – states that the force between two point charges is proportional to the product of the charges and inversely proportional to the square of the distance between them. Electric Field Strength (E) – is the force per unit charge. Potential Difference (p.d.) – between two point is the… Continue Reading →

All Physics Definitions for Leaving Certificate

Light Refraction is the bending of light as it goes from one medium to another. Laws of Refraction: (1) Incident ray, refracted ray & normal are on the same plane.  (2) Sine I/Sine R is constant. Refractive Index: Sine I/Sine R = 1/Sin C = Real depth/Apparent depth = c1/c2 Critical Angle: The… Continue Reading →