5.3 Accelerate Your Understanding: Uniform Motion and Deceleration

Accelerate Your Understanding: Uniform Motion and Deceleration
Book NOVA 1/2B
Chapter 5 Motion
Unit 3
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Slide 1: Tekstslide
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In deze les zitten 18 slides, met interactieve quizzen, tekstslides en 1 video.

Lesduur is: 50 min

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Accelerate Your Understanding: Uniform Motion and Deceleration
Book NOVA 1/2B
Chapter 5 Motion
Unit 3

Slide 1 -Tekstslide

Deze slide heeft geen instructies

Slide 2 -Woordweb

Deze slide heeft geen instructies

Learning Objective
At the end of the lesson, you will be able to explain acceleration - uniform motion and deceleration.
You are able to calculate the speed at any moment of different motions.
you can recognise and read off the (x,t) and (v,t) diagrams for different motions.
You are able to use an (x,t) diagram to work out when two road users will meet.
You can describe what a rejected take-off is (extra).

Slide 3 -Tekstslide

This slide should be displayed at the beginning of the lesson to inform students of the objective.
Which motion do the angry birds make?
acceleration - uniform motion- deceleration

Slide 4 -Open vraag

Deze slide heeft geen instructies

What unit is used for speed?
A
meters per second
B
m/s
C
km/h
D
kilometers

Slide 5 -Quizvraag

Deze slide heeft geen instructies

Uniform motion
Uniform motion can be calculated using the formula v = s / t, where v is the velocity, s is the distance, and t is the time taken.

Slide 6 -Tekstslide

Explain the formula for calculating acceleration and give an example.
Uniform Motion
Uniform motion is when an object moves at a constant speed in a straight line. In uniform motion, acceleration is zero.
Uniform motion can be calculated using the formula
v = v avg = s / t,
v  = the velocity, in m/s or km/h
s = the distance, in m or km
and t = the time taken, in s (seconds) or h (hours)

Slide 7 -Tekstslide

Explain uniform motion and give an example. Ask students to identify situations in which an object is in uniform motion.

Slide 8 -Video

Deze slide heeft geen instructies

2.     Explain why the start of this racing car is not
a uniform motion.

Slide 9 -Open vraag

Deze slide heeft geen instructies

Acceleration
Acceleration is the kind of motion in which te speed keeps increasing.
Or the rate of change of velocity over time.
It is measured in m/s.

Slide 10 -Tekstslide

Explain the concept of acceleration in simple terms and give an example.
Positive Acceleration
When an object speeds up, its acceleration is positive. For example, a car moving from rest to a higher speed has positive acceleration.

Slide 11 -Tekstslide

Explain positive acceleration and give an example. Ask students to identify situations in which an object has positive acceleration.
Negative Acceleration
When an object slows down, its acceleration is negative. This is also called deceleration. For example, a car moving from a higher speed to rest has negative acceleration.

Slide 12 -Tekstslide

Explain negative acceleration and give an example. Ask students to identify situations in which an object has negative acceleration.
Graphing Acceleration
Acceleration can be graphed over time. A straight line on a velocity-time graph represents uniform acceleration.

Slide 13 -Tekstslide

Explain how to graph acceleration over time and give an example. Ask students to identify situations in which acceleration is uniform.
State at what times in the graph there is an acceleration, deceleration and a uniform motion.
timer
1:30

Slide 14 -Open vraag

Deze slide heeft geen instructies

Recap
Acceleration is the rate of change of velocity. Uniform motion has zero acceleration. Positive acceleration is when an object speeds up, and negative acceleration (deceleration) is when an object slows down.

Slide 15 -Tekstslide

Summarize the key points of the lesson and give students the opportunity to ask questions or clarify concepts.
Write down 3 things you learned in this lesson.

Slide 16 -Open vraag

Have students enter three things they learned in this lesson. With this they can indicate their own learning efficiency of this lesson.
Write down 2 things you want to know more about.

Slide 17 -Open vraag

Here, students enter two things they would like to know more about. This not only increases involvement, but also gives them more ownership.