Y2_T4_LSN4.3

• Science
• Middelbare school
• havo, vwo
• Leerjaar 2

KWIZL: ET_Y2_4.1&4.2

GET READY:

- computer on KWIZL

- notebook (closed)

- pen/pencil

HW CHECK - §4.2

GET READY:

- computer on Classroom

- tb on the hw exercises

- coloured pen/pencil

§4.3 Acceleration

p. 172-175

ex 22-29 p 176-191

GET READY:

- computer on Classroom

- tb on the hw exercises

- coloured pen/pencil

§4.3 - Learning Goals:

Content

• I know which measurements and units are necessary to calculate acceleration.
• I know what forces can influence acceleration.

Language

• I can describe the concept of acceleration
• I can explain how forces can influence acceleration.

Skills

• I can use an object’s resultant force to determine what type of motion it has.
• I can create and interpret v,t-diagrams relating to an object’s change in motion.
• I can calculate the acceleration of an object using the acceleration formula.

P.172-175

§4.1 - Learning Goals:

LG - Step 1: Read the learning goals above carefully. In the 3rd column mark the ones you feel good about with a “+” and the ones you might be a bit worried about with a “-”.

LG - Step 2: Take a good look at the categories of learning goals and compare them to your scores from S1. Now rank your categories from strongest to weakest using the letters A, B & C. (A - being strongest.)

LG - Step 3: Discuss what you have just filled in on your table with your neighbour(s). Try to explain / argue why you made that choice and ask the person for clarifying questions if need be.  

LG - Step 4: Think about what you have just discussed. Make any necessary changes in the marking of your table if need be. Use the last column please!

LG - Step 5: Based on the steps you have just completed, take a look at the table below. What 3 things / goals are you going to focus on this paragraph? Please write them down below.

§4.3 - Keywords:

WB - Step 1: Take a look at the wordbank above, these are the new keywords for §4.2 - Speed. Complete the wordbank by marking a “✓” if you agree with what is said and leave it empty if not. 

WB - Step 2: Discuss what you have just filled in on your table with your neighbour(s). Try to explain / argue why you made that choice and ask the person for clarifying questions if need be.  

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What is acceleration?

Acceleration is change in speed, so speeding up or slowing down, measured in meters per second squared (m/s2). 

It is calculated by:

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What is acceleration?

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What is deceleration?

Deceleration occurs when an object’s speed decreases, in other words, a negative acceleration.

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Uniform motion

Uniform motion - When the speed stays constant

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Acceleration

Acceleration: speed increases→ Graph gets steeper

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Deceleration

Deceleration: speed decreases → Graph gets flatter

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Let's practice:

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A car is accelerating for 8 seconds, increasing by 20 m/s every second. Complete the following table, then make an v,t diagram of your results.

Let's practice:

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A car is accelerating for 8 seconds, increasing by 20 m/s every second. Complete the following table, then make an v,t diagram of your results.

Let's practice

Now make make an s,t diagram of your results

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Let's practice

Now make make an x,t diagram of your results

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graph

Hw for lesson 3:

• Complete exercises 22-29 of §4.3 pages 176-181
• Read §4.4 pages 182-183
• Study the glossaries of §4.4 on Studygo.

• Study for the quiz §4.1-§4.3
• Prepare for the marble lablesson: (lab journal)

P.172-181