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Balloon car learning target:

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Title: Balloon car learning target:


1
Balloon car learning target Using the
scientific method, I can demonstrate Newtons 3
laws of motion by creating a working balloon car.
2
Balloon car learning target Using Newtons 3
laws of motion. I can explain my balloon cars
performance.
3
  • Balloon car summative
  • Think about if you had never blown the balloon
    would your car ever move?
  • Did the car travel forever. Why not?
  • 2. Was your car heavy or lightdid you need more
    or less force to move it?
  • Did it move fast? Did your balloon give
    enough force?
  • 3. If the air goes back the car goes forward
    right??

4
What is a force?
Learning target I will be able to describe what
causes motion in
terms of forces.
5
It is a push or a pull
6
All forces have a size and a direction.
7
Forces can change the direction, speed or size
of an object
8
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9
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10
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11
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12
What do we measure forces in?
13
Newton's (N)
  • After Sir Isaac Newton.

14
Learning target. I will be able to tell the
difference between mass and weight.Forma
tive lab . Measuring in
Newton's
15
Mass (Kg)
Weight (N)
What number links them together Here on earth?
16
Forces can be balanced or unbalanced
Learning target.. I will be able to describe
what causes
motion in terms of forces.
17
Balanced Forces
100 N
100 N
18
  • The net force is the difference between the
    2.100N 100N 0 N

19
So nothing moves. There is no motion.
20
Unbalanced forces
100N
25N
21
The net force is this time is 75 N100N
25N75N
22
There forces are unbalanced so there is motion.
Learning target.. I can describe what causes
motion in terms of forces.
23
Net / Resultant force
500N
45N
24
  • What is motion?

25
Motion is when something moves.
26
We can only detect motion when we link it to
something that is not moving.
27
100mph
100mph
Does not feel fast
28
30mph
100mph
Now that feels fast!
29
Speed
Learning target I will be able to make
measurements to
calculate the speed of moving objects.
  • The rate at which an object moves is its speed.

30
Distance
Speed
D
m or cm or Km
m/s or m/hr or km/hr
T
S
Time
sec or min or hrs
31
Now gather all the data from the class only
relating to their speed running.Now produce a
scatter plot with line of best fit..What is the
best fit speed of the class?
32
Speed m/s
OF PEOPLE
33
We usually calculate average speed.Because
speed changes from 1 second to the other.
34

Don't lose your marbles!
Learning target I will be able to describe the
concept of speed when linked to motion.
35
Start timer
Stop timer
1m
0 m
2m
3m
4m
5m
Learning target I will be able to describe the
concept of speed when linked to motion
36
Marbles Summative graph
Learning target I will be able to describe the
concept of speed when linked to motion.
37
Graphing Speed
Learning target I will be able to identify
different types of motion on a graph.
38
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39
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40
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41
What affects the speed of a car?
Inquiry based summative
Learning target I can describe the concept of
speed when linked to motion.
42
Jason driving
  1. Go to jason.org
  2. Click on top right to log in to mission center.
  3. Username corrina.orr_at_lcps.org
  4. Password aiden1996
  5. Now Click on digital library
  6. Search fast and curious race
  7. Click 1st link.
  8. Click play now.

43
VelocityThis is the speed of an object in a
direction.
Learning target I will be able to apply the
concept of velocity to motion.
8m/s south
44
Velocity changes as the speed or the direction
changes.
45
15m/s East
Velocity has changed
16m/s east
46
15m/s east
Velocity changes because direction changed
15m/s west
47
You can combine velocity
1m/s west
15m/s west
What is the net/resultant velocity?
48
2m/s east
15m/s w
What is the net velocity?
49
Resultant/net velocity
26 knots South
67 knots North
Learning target I can apply the concept of
velocity to motion.
50
Sports cars
51
Learning target I will be able to apply the
concept of acceleration when describing motion.
Acceleration labs calculations
Final Velocity Distance Time
52
Acceleration
Is the rate an object changes its velocity
Learning target I will be able to apply the
concept of acceleration when describing motion.
53
Initial velocity is 0m/s forward
Final velocity 4m/s forward
It took 8s to accelerate
54
4m/s forward - 0m/s forward
Acc
8s
4m/s
Acc
8s
0.5 m/s/s
Acc
55
Calculating acceleration
Final Velocity -- initial velocity
Acc
Time taken to change
56
Deceleration
This is the rate at which an object slows down.
In math you would call it negative acceleration.
57
Initial velocity 4m/s forward
Time taken 0.5s
Final velocity om/s
58
Final velocity - initial velocity
Dec
time taken
0 m/s - 4m/s
Dec
0.5s
- 8 m/s/s
Dec
59
Graphing Acceleration
Negative acceleration/deceleration
Not accelerating
velocity m/s
Acceleration
Time taken (s)
Learning target I will be able to identify
different types of motion on a graph.
60
How can a car show a change in acceleration
While maintaining a constant speed?
61
Balloon Cars due Next Week!
62
Gravity
Learning target I will be able to describe
Newton's law of universal gravity.
63
Gravity is the force of attraction between objects
Gravity is linked to mass
All matter has mass.
64
All matter pulls towards each other.
The bigger the object the bigger the pull.
65
Newton's law of universal gravitation
All objects are attracted
to each other via
gravitational force.
66
The size of the force depends
On the masses of the objects
and the distance between them
67
The gravitational force increases as mass
increases
68
Gravitational force decreases with distance.
Earth
Mercury
Learning target I can describe Newton's law of
universal gravity.
69
Weight is a measure of
gravitational force.
How would weight differ
on different planets?
LEARNING TARGET I can tell the difference
between mass and weight.
70
Gravity

Motion
Learning target I will be able to explain why
things fall to earth at different rates.
71
You must test the feather and flat paper
Does mass or shape affect
the rate an object falls?
Learning target I will be able to explain why
things fall to earth at different rates.
72
Galileo
Dropped two cannon balls
from the top of the tower of Pisa.
73
Which hit first?
A
B
74
Well.....
They both landed at
the same time.
Why?????
75
Objects fall to earth at the same
rate due to gravity
76
On earth
2
9.81 m/s
77
Well.........
What does affect the rate at
which an object falls?
78
Shape of course!
79
Shape affects the falling
of an object because
of air resistance.
80
Air resistance is a form of
friction.
Learning target I can explain why things fall
to earth at different rates.
81
Learning target I will be able to explain what
friction is.
What is friction?
82
Friction is a force
It slows things down
It opposes motion.
83
Learning target I will be able to correctly
identify the four main types of friction.
Types of friction
Sliding friction
Pushing a solid over a solid.
84
Rolling Friction
Wheels reduces friction.
So things are easier to move.
85
Fluid friction
This is the force of friction between solids
and liquids or gases.
86
Static friction
This force balances others
so the object does not move.
87
Friction Labs
Learning target I will be able to explain what
friction is.
88
How might Friction affect the performance of your
balloon car?
89
Learning target I will be able to explain why
things fall to earth at different rates.
Air resistance
90
But what is air
resistance?
91
Well it's a type of fluid friction.
92
How does air resistance
affect motion due to gravity?
93
Gravity pulls down
10kg
10kg
object is falling
Air resistance/friction
pushes up
94
The Sphere will
Drop more quicker
Because
Less air resistance
95
Learning target I can explain what terminal
velocity is.
As your speed increases
so does the air resistance.
An object will continue
to accelerate until terminal
velocity is reached.
96
What is that???
97
The down force/gravity
They cancel each
other out.
Up force/air resistance
98
The net force is zero.
99
You travel at a constant
speed
Terminal End Terminal velocity is the fastest
an object can travel.
100
Hail stones
101
Learning target I can explain freefall in
relation to forces.
Free fall
only naturally occurs in outer
space
gravity pulls but
no push of air resistance
102
Objects in orbit
are in freefall
103
Learning target I will be able to describe the
separate forces that
cause projectile motion.
Projectile motion
104
Players force
Gravity
105
We see separate
Vertical and
Horizontal forces.
106
The ball still falls at 9.81m/s/s.
However
It travels in an arc not straight down.
107
Things in orbit show projectile
motion.
steady velocity
Freefall
Learning target I can correctly identify the
forces that cause projectile motion.
108
What we think Earth looks like
What earth actually looks like.
109
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110
Learning target I will be able to identify the
factors that affect
an objects momentum.
What is
momentum?
111
Momentum is a property that depends on
an objects mass and velocity.
112
Conservation of momentum
States that total momentum
in any situation remains unchanged
Momentum is transferred
Between colliding objects.
113
Learning target I will be able to identify the
factors that affect
an objects momentum.
M
Mass
Velocity

X
Kg/m/s
Kg
m/s
Momentum car lab. Bottom of first page(lab)
Calculate Car 1 momentum
114
M
M
V
Learning target I can identify the factors
that affect an objects momentum.
115
Learning target I will be able to identify
situations that show
Newton's laws of motion.
Newton's laws
of motion
Newton cart lab
116
1st law
117
Inertia
This is an objects ability to
resist being moved.
118
Law of inertia
" An object at rest will stay at rest,
an object in motion stays in motion,
unless acted on by an unbalanced force.
119
How can you make the Cup with 3 pennies travel
As far as the cup with no pennies?
120
Newton's
2nd Law
Learning Target I will be able to explain how
force, mass and
acceleration are related to each other.
121
F M x A
Acceleration
Force
Mass
122
F(w) M x A
F (w)
M F(w) / A
A
M
A F(w) / M
123
Newton's
Reaction
3rd law
Action
124
Action
Reaction
125
"For every action
there is an equal
and opposite
reaction."
Learning target I can identify situations that
show Newton's laws
of motion.
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