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Lesson 9 — acceleration
4.4 Acceleration
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Slide 1:
Slide
Science
Middelbare school
havo
Leerjaar 2
This lesson contains
18 slides
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text slides
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Lesson duration is:
45 min
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Items in this lesson
4.4 Acceleration
Slide 1 - Slide
This lesson
Recap acceleration
Discussing the homework
Rearranging the formula
Speed-time graphs
Slide 2 - Slide
Learning goals
Name the formula for acceleration and apply it in calculations.
Be able to rearrange the formula for acceleration.
Define the unit of acceleration.
Be able to read speed-time graphs
Slide 3 - Slide
Acceleration
Slide 4 - Slide
a
c
c
e
l
e
r
a
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a: acceleration
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: final speed
v
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: initial speed
t: time
Slide 5 - Slide
a
=
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a: acceleration
v
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: final speed
v
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: initial speed
t: time
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=
Slide 6 - Slide
a
=
t
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a: acceleration
v
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: final speed
v
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: initial speed
t: time
t
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a
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=
Slide 7 - Slide
a
=
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−
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a: acceleration
v
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: final speed
v
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: initial speed
t: time
t
=
a
v
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−
v
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v
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a
⋅
t
Slide 8 - Slide
The unit of Acceleration
Slide 9 - Slide
Unit of Acceleration
speed/time
(m/s)/s
m/s
2
Slide 10 - Slide
Practice exercise 1
A cyclists accelerates at a rate of 1.26 m/s2 for 6.3 seconds. Calculate his change in speed
Slide 11 - Slide
Practice exercise 2
Elevators in in the Yokohama tower in Japan are among the fastest in the world. They accelerate upwards at a rate of 3.125 m/s2 for 4 seconds.
A)
Calculate their change in speed during this acceleration.
B)
If They start from rest what is their final speed in this acceleration
Slide 12 - Slide
Speed-time graphs
Slide 13 - Slide
Speed-time graphs
Slide 14 - Slide
What type of movement is shown at each part of the graph?
A: Steady acceleration
B: Steady speed
C Steady acceleration
D: increasing acceleration
E Decreasing acceleration
Slide 15 - Slide
Slide 16 - Slide
Homework
Worksheet acceleration Exercise 5, 6, 7, 8
Slide 17 - Slide
Learning goals
Name the formula for acceleration and apply it in calculations.
Be able to rearrange the formula for acceleration.
Define the unit of acceleration.
Be able to read speed-time graphs
Slide 18 - Slide
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