Oracle Tutoring, Campbell River, BC
(250) 203-6544 (text) or (250) 830-0295 (talk)
Tutoring physics, you notice it in everyday situations. The tutor mentions horsepower riding a bike uphill. Let’s imagine a kid on a bike – perhaps 40kg total – riding uphill, perhaps a 5% grade (5m up for every 100m up …
Tutoring physics, terms and concepts are important. The tutor mentions torsion. In my previous post I mention torque, which means leverage that can cause a shaft to spin. An example of torque is the case of loosening a bolt with …
Tutoring physics, fundamental concepts arise. The tutor mentions torque. Torque is essentially leverage applied to an object to start it spinning. A common context is a shaft or axle on bearings; the torque might be supplied by a drive chain, …
Self-tutoring about radiation: the tutor mentions UV in terms of ionizing. I mention ionizing vs non-ionizing radiation back in my post from Nov 10. The basic concept is that ionizing radiation can damage molecules in the body without your feeling …
Self-tutoring about radiation: the tutor mentions ionizing and non-ionizing. Non-ionizing radiation isn’t powerful enough to dislodge electrons from a molecule or atom. It’s the safer of the two kinds of radiation to be around. Even heat is non-ionizing radiation. Ionizing …
Self-tutoring about radioactive decay: the tutor wonders what happens to emitted alpha particles. An alpha particle – sometimes written α – can be emitted in various radioactive decay scenarios. U238 → Th234 + α is an example. α particles aren’t …
Physics, chemistry: alpha particles from radioactive decay Read more »
Self-tutoring about physics: the tutor looks at x-ray generation. One type of x-ray generator is a vacuum tube containing a heated plate at one end, and the receiving plate at the opposite end. Around the outside of the tube, the …
Tutoring physics, approximations often help. The tutor mentions a comparison between exact and approximate. Example 1: Imagine a projectile launched according to the equationh=-4.9t^2 +22t + 15 What would be its height at 3.0 seconds? Solution: h=-4.9(3.0)^2+22(3.0)+15=36.9m or 37m (sig …
Tutoring physics or general science, the term parallax might arise. The tutor gives a definition. parallax: the phenomenon that the position of an object seems to change as the viewer’s location changes. Source: Gilmour, Lorna (ed). Collins Essential Canadian English …
Tutoring physics or chemistry, definitions are always important. The tutor compares closed system with isolated system. A closed system cannot lose or gain matter; it cannot exchange matter with the surrounding environment. An isolated system is closed as above, but …
Physics, chemistry: closed system vs isolated system Read more »