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Lesson 2.1Lesson 2.1Force & Motion 2010Force & Motion 2010

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KJs can demonstration

Please Video tape and insert here.

Soda

Can

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Straw Soccer

Each village handy will get a straw

Each mayor will get two cardboard boxes

Each secretary will get a marble

We will play up to 3 points

V 1 vs V3, V2 vs v4, V5 vs V8, V6 vs V7

The handy is the champion

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Straw Soccer

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Draw a diagram using a vector

for the force acting on the

Soccer ball for each of the

following situations.

ForceForce

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Draw a diagram using a vector for the force

acting on the Soccer ball for each of the

following situations.

The marble is accelerated by a

puff of air toward the opponentsgoal.

ForceForce

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Draw a diagram using a vector for the force acting on the Soccer ball

for each of the following situations.

The marble is accelerated by a puff

of air toward the opponents goal.

The marble is slowed by a puff of

air as it approaches the opponents

goal.

ForceForce

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Draw a diagram using a vector for the force acting on the Soccer ball

for each of the following situations.

The marble is accelerated by a puff of air toward the opponents goal.

The marble is slowed by a puff of air as itapproaches the opponents goal.

The marble is bounced off of thewall and end up on the opponentshalf of the field.

ForceForce

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Draw a diagram using a vector for the force acting on the Soccer ball

for each of the following situations.

The marble is accelerated by a puff of air toward the opponents goal.

The marble is slowed by a puff of air as itapproaches the opponents goal.

The marble is bounced off of thewall and end up on the opponentshalf of the field.

ForceForce

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The marble is bounced off of the

wall and end up on the

opponents half of the field.

If the marble does not change

speed when it bounces off the

wall, does it accelerate?

ForceForce

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If the marble does not change

speed when it bounces off the

wall, does it accelerate?

Yes.

Accelerate = change in direction

and/or speed.

ForceForce

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The marble is accelerated by a puff ofair toward the opponents goal.

The marble is slowed by a puff of air asit approaches the opponents goal.

Does the marble acceleratewhen it slows when approachesyour opponent?

ForceForce

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Does the marble accelerate

when it slows when approaches

your opponent?

YES. Negative Acceleration

Accelerate = change in speed

and/or direction

ForceForce

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H

ow do Forcesaffect motion?

ForceForce

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Balanced forces = No motion, no

movementUnbalanced forces = Movement,

motion

How do Forces affect motion?

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Balanced forces = No motion, no

movement

How do Forces affect motion?

10 N10 N

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Unbalanced forces = Movement,

motion

How do Forces affect motion?

10 N14 N

4 N

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Force

Push

Or

Pull

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What do you think

What forces

affected themarbles motion

that werent

caused directlyby you or your

opponent?

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What we didWhat we didHow we did itHow we did it What we knowWhat we know

We played table soccerwith marbles and

straws.

we blew air through thestraw to push the

marble forward.

if the force of my airwas greater than my

opponents air the

marble would roll away

from me. When the

force of the air was thesame the marble did

not move.

We rotated through

different stations and

answered questions.

Each stations we

followed instructions

and determined what

types of forces acted.

There are forces that act

on objects all the time.

when the book is on the

table the table or meter

stick is pushing up on

the book.

There are forces actingon objects even when