Transcript Balloon Powered Vehicles

You have 10 minutes to
put final touches on
your vehicle.
 Each group will take
turns with their car.


As you watch each groups, think about the
following questions:
 What design features do you see that are unique
to the vehicle?
 What features of the design do you think impact
the vehicle’s ability to travel 5m?
 What features of the design do you think make it
easier for the vehicle to travel 5m?



What challenges did you and your group
experience? How did you overcome them?
Is your final model similar to your initial
sketch? How did your design change?
List 3 things you learned during this “project”.
 In other words: what do you think was valuable
about this project.
 Start to think in terms of physics terms.


Share your three concepts that you learned
during this experience.
As partners, pick your top two concepts
learned.



Form a group of 4 (in other words, find
another set of partners to join you).
Share your top two concepts learned.
As a group of 4, choose your favorite one to
share with the class.
 One person from you group is to write this
important concept on the board.

“An object continues
its state of rest, or
uniform motion in a
straight line, unless
acted upon by some
external force.”
 Identify key words –
underline them.
 What is this law really
saying?


Essentially: objects keep doing what they’re
doing.
VOCAB WORD:
 Inertia: resistance to change

Inertia is a product of mass
 More mass = more resistance

Did any groups encounter Newton’s First Law
during the design challenge?

How is Newton’s First Law applied during
these clips?
 http://www.youtube.com/watch?v=ylWr-Wq32Sk
 http://www.youtube.com/watch?v=1hZf7hcrtvQ

Write a headline for
Newton’s First Law
that captures an
important aspect or
core idea that we
would want to
remember.
 Share your headline with
a partner.
 Together, decide which
you like better, or create
a new one together.

Winter Olympics
Groups
 One person from you
team can sign everyone
up.

Projectile Launcher
Make-Up Paper Due

What does Newton’s First Law say?

“When a force acts upon a mass, the result is
acceleration of that mass in the direction of
the force applied.”
• Identify key words –
underline them.
• What is this law
really saying?

Essentially says: F=ma
 Objects accelerate in the direction of applied
force.
 Goes back to vectors: magnitude and direction.
▪ Mass: magnitude
▪ Acceleration: magnitude & direction
▪ Direction comes from acceleration
 http://www.youtube.com/watch?v=uI-QvUBy0WA



How does this law apply to our balloon
vehicle challenge?
More mass = need more F to accelerate
object
Did any groups discover that their car had too
much mass for the force provided by the
balloon?

Write a headline for Newton’s Second Law
that captures an important aspect or core
idea that we would want to remember.
 Share your headline with a partner.
 Together, decide which you like better, or create a
new one together.

“For every action, there is an equal and
opposite reaction.”
 Identify key words – underline them.
 What is this law really saying?



For every force there is a reaction force equal
in size, but opposite in direction.
Forces are equal & opposite, BUT not their
effects!
http://www.youtube.com/watch?v=9k48c9Z1
VjY

How does Newton’s Third Law apply to our
balloon vehicles?

Write a headline for Newton’s Third Law that
captures an important aspect or core idea
that we would want to remember.
 Share your headline with a partner.
 Together, decide which you like better, or create a
new one together.


Think about your groups balloon vehicle,
describe how Newton’s Laws apply to your
vehicle.
You need at least 1 sentence for each Law.


In partners, cut out your law place cards &
scenarios.
You will classify each scenario according to
Newton’s Laws.
 Some scenarios may fall under more than one law.
There is a place card for that as well.

Be prepared to support the placement of
each scenario.

Write Newton’s Three Laws in your own
words.