Y2_T4_LSN4.3

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

KWIZL: ET_Y2_4.1&4.2

HW CHECK

§4.1 

§4.2

FORCES WORKSHEET

§4.3 Acceleration

p. 172-175

ex 22-29 p 176-191

§4.3 - Learning Goals:

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

P.172-175

§4.3 - Keywords:

• Acceleration
• Deceleration
• v,t-diagram

P.172-175

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:

P.172-175

What is acceleration?

P.172-175

What is deceleration?

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

P.172-175

Uniform motion

Uniform motion - When the speed stays constant

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Acceleration

Acceleration: speed increases→ Graph gets steeper

P.172-175

Deceleration

Deceleration: speed decreases → Graph gets flatter

P.172-175

Let's practice:

P.172-175

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:

P.172-175

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 x,t diagram of your results

P.172-175

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