Constructive interference: Above is an example of Constructive interference of a wave, it is tough to see but right at the beginning the wave is much larger and this is where the two waves came together to make a big one, they combined. You can see it goes back down and seems to “split” into […]

# Category: Grade 11

# Week 14 – precalculus 11

Equivalent Rational Expressions: To simplify a Rational Expression, we must factor the numerator and denominator, cancel out any common factors and find the Non-permissible values. We can better understand this by showing it. If we are given the expression We will then simplify or factor the top and bottom Now in a fraction, the denominator […]

# Videos of 4 Types of Waves

Pulse: Above is a demonstration of a pulse wave on a slinky, it is not a repeating wave and is mechanical. Transverse Waves: Above is a demonstration of a transverse wave, the spring is moved to the side and let go and the wave goes across to the opposite side. Periodic Waves: Above is an […]

# Week 13 – precalculus 11

Graphing Ablsolute Value Functions and Piecewise Notation The way absolute value functions work is that the points can never be negative, so the line never goes into the negative zone on the graph. It will reflect back up instead. The point where it reflects on the x axis is called the critical point or x-intercept. […]

# Thermos Challenge Blogpost

Planning, Process, Analysis: Prototype Testing Procedure: Goal: The goal for our procedure is to determine how effective each of our thermos. prototypes are at conserving heat of 150ml of boiling water over time. We also needed to stay within a budget and make it aesthetic pleasing. Materials: -Beaker (250 ml) -Hot Plate -Thermometer (Celsius) -Funnel -Tongs -150ml of boiling water […]

# Week 12 – precalculus 11

Solving Systems of Equations Algebraically In this case, we will be using liner-quadratic systems. A system is a series of two equations in which you can substitute one equation and put it in the other and use this to find the values for x, usually by factoring at one point. You can also find Y […]

# Week 11 – precalculus 11

Graphing Linear Inequalities with Two Variables: Linear Inequalities will give us a straight line on a graph. Not only do we need to know how this line looks using the equation, but we also need to understand where the answers to the inequality lies. When we are given inequalities we are usually given a y […]

# Week 10 – precalculus 11

Dividing Radical Expressions: Dividing radicals is not as easy as multiplying, though it does include multiplying. We will need to use distributive property and potentially adding to rationlize the denominator. We cannot divide by a radical so we must make the denominator a whole number. We normally multiply the denominator by itself and multiply that […]

# Week 9 – precalculus 11

Equivalent Forms of the Equation of a Quadratic Functions and finding x-ints: If one is given the equation it may seem like there is no way to find the vertex or starting point of the parabola, a line that goes down but then goes back up after a certain point. If we needed to find […]

# Newton’s Three Laws of Motion Blogpost

Short Story Billy’s Adventure Some early teens have trouble understanding Newton’s laws of motion. To better understand these laws, we must tell the story of an average boy going about his day. It was a typical sunny Saturday. 13-year-old Billy is in his basement doing laundry. When he bends over to pick up a […]