ALEX Classroom Resources

   View Standards     Standard(s): [SC2015] PHYS (9-12) 2 :

2 ) Identify external forces in a system and apply Newton's laws graphically by using models such as free-body diagrams to explain how the motion of an object is affected, ranging from simple to complex, and including circular motion.

a. Use mathematical computations to derive simple equations of motion for various systems using Newton's second law.

b. Use mathematical computations to explain the nature of forces (e.g., tension, friction, normal) related to Newton's second and third laws.

This video explores the language of physics and mathematics. Every branch of science has its own way to describe the things that it investigates. And, with physics, that's math. In this episode, Shini talks us through derivatives and how calculus helps us to understand the world around us.

   View Standards     Standard(s): [SC2015] PHYS (9-12) 2 :

2 ) Identify external forces in a system and apply Newton's laws graphically by using models such as free-body diagrams to explain how the motion of an object is affected, ranging from simple to complex, and including circular motion.

a. Use mathematical computations to derive simple equations of motion for various systems using Newton's second law.

b. Use mathematical computations to explain the nature of forces (e.g., tension, friction, normal) related to Newton's second and third laws.

Dr. Shini leads us through the ways that integrals can help us figure out things like distance when we have several other key bits of information. Say, for instance, you wanted to know how far your window was off the ground. By using integrals, a tennis ball, and a stopwatch, you can figure that out.

   View Standards     Standard(s): [SC2015] PHYS (9-12) 2 :

2 ) Identify external forces in a system and apply Newton's laws graphically by using models such as free-body diagrams to explain how the motion of an object is affected, ranging from simple to complex, and including circular motion.

a. Use mathematical computations to derive simple equations of motion for various systems using Newton's second law.

b. Use mathematical computations to explain the nature of forces (e.g., tension, friction, normal) related to Newton's second and third laws.

I'm sure you've heard of Isaac Newton and maybe of some of his laws. Like, that thing about "equal and opposite reactions" and such. But what do his laws mean? And how do they help us understand the world around us? In this episode of Crash Course Physics, Dr. Shini talks to us about just that.