5-1 Acceleration 5.1

Accelerating (5.1) p 178

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Slide 1: Slide

NatuurkundeMiddelbare schoolhavoLeerjaar 2

This lesson contains 21 slides, with interactive quizzes and text slides.

Lesson duration is: 45 min

Items in this lesson

Accelerating (5.1) p 178

Slide 1 - Slide

Lesson goals:

Understand the velocity-time graph (v,t)
Use the formula for acceleration
Use the (v,t)-diagram to calculate distance/ displacement

Slide 2 - Slide

drawing a (v,t)-diagram

v - vertical axis

t - horizontal axis

0-4 s Velocity increases therefore

the object is accelerating

after 4s the motion is constant

uniform motion

Slide 3 - Slide

Acceleration

An object has a constant acceleration if there is a uniform increase in velocity, for example

t = 1s then v = 3 m/s,

t = 2s then v= 6 m/s

t = 3s then v = 9 m/s

therefore the acceleration is 3 m/s2

Slide 4 - Slide

Calculating velocity:

v - velocity in m/s

s - distance in m

t - time in s

v = \frac{​ Δ x ​ ​}{​ Δ t ​}

Δ x = x^{​ f i n a l ​ ​} - x^{​ i n i t i a l ​ ​}

Slide 5 - Slide

Calculating acceleration:

a - acceleration in m/s2

t - time in s

v - velocity in m/s

a = \frac{​ Δ v ​ ​}{​ Δ t ​}

Δ v = v^{​ f i n a l ​ ​} - v^{​ i n i t i a l ​ ​}

Slide 6 - Slide

convert velocity

velocity is often given in km/h and must be converted to m/s

m/s km/h

: 3,6

x 3,6

Slide 7 - Slide

Convert... 30 km/h = ... m/s

8,3

108

300

Slide 8 - Quiz

Convert... 30 m/s= ... km/h

8,3

108

300

Slide 9 - Quiz

Convert... 500 km/h = ... m/s

139

500

1800

5000

Slide 10 - Quiz

Example 1

Slide 11 - Slide

Slide 12 - Slide

A runner increases his velocity from 1,5 m/s to 2,3 m/s in 4 seconds. Calculate the acceleration.

0,2

0,4

0,6

3,2

Slide 13 - Quiz

A drone accelerates for 3,7 seconds at 3 m/s2. If the drones initial velocity was 4 m/s what will then be it's final velocity?

7,1

8,3

11,1

15,1

Slide 14 - Quiz

Calculating displacement

You can use the (v,t)-diagram

to calculate distance

Distance = area under the graph

Slide 15 - Slide

Slide 16 - Slide

Hand in a photo of your Q8 here.

Slide 17 - Open question

How was the lesson?
Any tips for me how I can do this better?

Slide 18 - Open question

Slide 19 - Slide

Samenvatting:

Je berekent versnelling met

Je berekent afstand door de area onder de grafiek te berekenen

a = \frac{​ Δ v ​ ​}{​ Δ t ​}

Slide 20 - Slide

Huiswerk

Groepjes van 4
Een persoon moet

voorbereiden voor volgende les

Andere lessen: L2 - Resultante kracht

L3 - Tweede wet van Newton F = ma

L11 - Remkracht berekenen

Slide 21 - Slide