Balloon car learning target:

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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.
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• 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??

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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.
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Forces can change the direction, speed or size
of an object
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What do we measure forces in?
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Newton's (N)

• After Sir Isaac Newton.

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

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

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Motion is when something moves.
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We can only detect motion when we link it to
something that is not moving.
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100mph
100mph
Does not feel fast
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30mph
100mph
Now that feels fast!
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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.

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Distance
Speed
D
m or cm or Km
m/s or m/hr or km/hr
T
S
Time
sec or min or hrs
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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?
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Speed m/s
OF PEOPLE
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We usually calculate average speed.Because
speed changes from 1 second to the other.
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Don't lose your marbles!
Learning target I will be able to describe the
concept of speed when linked to motion.
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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
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Marbles Summative graph
Learning target I will be able to describe the
concept of speed when linked to motion.
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Graphing Speed
Learning target I will be able to identify
different types of motion on a graph.
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What affects the speed of a car?
Inquiry based summative
Learning target I can describe the concept of
speed when linked to motion.
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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.

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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
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Velocity changes as the speed or the direction
changes.
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15m/s East
Velocity has changed
16m/s east
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15m/s east
Velocity changes because direction changed
15m/s west
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You can combine velocity
1m/s west
15m/s west
What is the net/resultant velocity?
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2m/s east
15m/s w
What is the net velocity?
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Resultant/net velocity
26 knots South
67 knots North
Learning target I can apply the concept of
velocity to motion.
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Sports cars
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Learning target I will be able to apply the
concept of acceleration when describing motion.
Acceleration labs calculations
Final Velocity Distance Time
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Acceleration
Is the rate an object changes its velocity
Learning target I will be able to apply the
concept of acceleration when describing motion.
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Initial velocity is 0m/s forward
Final velocity 4m/s forward
It took 8s to accelerate
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4m/s forward - 0m/s forward
Acc
8s
4m/s
Acc
8s
0.5 m/s/s
Acc
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Calculating acceleration
Final Velocity -- initial velocity
Acc
Time taken to change
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Deceleration
This is the rate at which an object slows down.
In math you would call it negative acceleration.
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Initial velocity 4m/s forward
Time taken 0.5s
Final velocity om/s
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Final velocity - initial velocity
Dec
time taken
0 m/s - 4m/s
Dec
0.5s
- 8 m/s/s
Dec
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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.
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How can a car show a change in acceleration
While maintaining a constant speed?
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Balloon Cars due Next Week!
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Gravity
Learning target I will be able to describe
Newton's law of universal gravity.
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Gravity is the force of attraction between objects
Gravity is linked to mass
All matter has mass.
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All matter pulls towards each other.
The bigger the object the bigger the pull.
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Newton's law of universal gravitation
All objects are attracted
to each other via
gravitational force.
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The size of the force depends
On the masses of the objects
and the distance between them
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The gravitational force increases as mass
increases
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Gravitational force decreases with distance.
Earth
Mercury
Learning target I can describe Newton's law of
universal gravity.
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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.
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Gravity

Motion
Learning target I will be able to explain why
things fall to earth at different rates.
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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.
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Galileo
Dropped two cannon balls
from the top of the tower of Pisa.
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Which hit first?
A
B
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Well.....
They both landed at
the same time.
Why?????
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Objects fall to earth at the same
rate due to gravity
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On earth
2
9.81 m/s
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Well.........
What does affect the rate at
which an object falls?
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Shape of course!
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Shape affects the falling
of an object because
of air resistance.
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Air resistance is a form of
friction.
Learning target I can explain why things fall
to earth at different rates.
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Learning target I will be able to explain what
friction is.
What is friction?
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Friction is a force
It slows things down
It opposes motion.
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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.
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Rolling Friction
Wheels reduces friction.
So things are easier to move.
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Fluid friction
This is the force of friction between solids
and liquids or gases.
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Static friction
This force balances others
so the object does not move.
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Friction Labs
Learning target I will be able to explain what
friction is.
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How might Friction affect the performance of your
balloon car?
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Learning target I will be able to explain why
things fall to earth at different rates.
Air resistance
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But what is air
resistance?
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Well it's a type of fluid friction.
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How does air resistance
affect motion due to gravity?
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Gravity pulls down
10kg
10kg
object is falling
Air resistance/friction
pushes up
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The Sphere will
Drop more quicker
Because
Less air resistance
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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.
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What is that???
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The down force/gravity
They cancel each
other out.
Up force/air resistance
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The net force is zero.
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You travel at a constant
speed
Terminal End Terminal velocity is the fastest
an object can travel.
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Hail stones
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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
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Objects in orbit
are in freefall
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Learning target I will be able to describe the
separate forces that
cause projectile motion.
Projectile motion
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Players force
Gravity
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We see separate
Vertical and
Horizontal forces.
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The ball still falls at 9.81m/s/s.
However
It travels in an arc not straight down.
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Things in orbit show projectile
motion.
steady velocity
Freefall
Learning target I can correctly identify the
forces that cause projectile motion.
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What we think Earth looks like
What earth actually looks like.
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Learning target I will be able to identify the
factors that affect
an objects momentum.
What is
momentum?
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Momentum is a property that depends on
an objects mass and velocity.
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Conservation of momentum
States that total momentum
in any situation remains unchanged
Momentum is transferred
Between colliding objects.
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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
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M
M
V
Learning target I can identify the factors
that affect an objects momentum.
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Learning target I will be able to identify
situations that show
Newton's laws of motion.
Newton's laws
of motion
Newton cart lab
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1st law
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Inertia
This is an objects ability to
resist being moved.
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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.
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How can you make the Cup with 3 pennies travel
As far as the cup with no pennies?
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Newton's
2nd Law
Learning Target I will be able to explain how
force, mass and
acceleration are related to each other.
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F M x A
Acceleration
Force
Mass
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F(w) M x A
F (w)
M F(w) / A
A
M
A F(w) / M
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Newton's
Reaction
3rd law
Action
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Action
Reaction
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"For every action
there is an equal
and opposite
reaction."
Learning target I can identify situations that
show Newton's laws
of motion.