Monday, May 23, 2016

Friction and Forces

You roll a model car down the hallway.  The car comes to a stop without hitting anything. Keegan says that the car stopped because there was no force pushing on it. Colby says that it stopped because of unseen forces. Who do you agree with and explain why you agree. 


69 comments:

Anonymous said...

Keegan is right because the car had nothing pushing on it to keep it moving.

Anonymous said...

i agree with colby

bryanna p said...

Colby says because it stopped because of unseen forces

Ian L said...

Keegan is right because you need force to push the car or it will be come inrtia.

Anonymous said...

keegan was right because there was no force pushing the car so the car would not move.

AJ said...

I agree with both boys because yes, there was no one pushing the car, but there was also an unseen force to stop it. If there is a hill going up, gravity will bring the car to a stop. But if you pushed the car up the hill, it would keep going. So both boys are right.

Anonymous said...

I agree with Colby because Friction might have stopped the Model Car and the Air Resistance also might have stopped the Model Car.

Nicole said...

I would agree with Keegan, because I don't believe there would be unseen forces to stop the car, but if there isnt any forces pushing the car it can't be rolling by itself.

Brianna M. said...

I agree with Colby because friction is acting on the car. You cannot see friction itself, but you can see it happening to an object. I agree with Colby because a force is pushing on an object all the time whether it's friction or gravity or a human pushing it forward.

Brandon Maloney said...

I agree with Colby because the gravity is pushing on it in the opposite side of the car the model with the block in front of it made the car go a half the then the regular one because the force pushing on it is more because the force keeps pushing on it a little further then the first one.

Anonymous said...

I agree with Keegan, because there was nothing making it keep going so eventually the car would stop.

Anonymous said...

I agree with Keegan because the car didn't have anything force pushing on it.

Anonymous said...

Colby, because it stopped because drag.

Jasmine C. said...

Keegan is right because, there was no force to push it.

mel, bry said...

Colby says because it stopped because of unseen forces

Grace D said...

I agree with Colby because there was force pushing on the car, that force was air. When the car is driving the air is pushing on the car.

lily g said...

I believe Colby

j said...

there was no foruse

Daniel.B said...

Keegan Is right because there is nothing pushing on it anymore.

Kyle G said...

keegan is right It has nothing to keep it going

Anonymous said...

I agree with Keegan because after the car was pushed there is no more force pushing on it.

Phia said...

i belive keegan

Anonymous said...

I agree with Colby, because there is always air pushing on something, there were just unseen forces.

EMILY KING said...

Keegan was right because there was no force pushing the car.

Ally said...

I think Keegan was right

Tyler said...

keegan was right the car has no force pushing it

Lauren Pride said...

I agree with with keegan because when u push the cart is a force and it stops when we stop pushing on it.

abigail N said...

I agree with keegan because the force of someone pushing the car or aceleration has worn off.

Anonymous said...

Team Frost for dayz.

COLBY said...

I agree with Colby bc go TEAM COLBY

Anthony Mason said...

Colby because ghost are scary

kolby osgood said...

team ryder

Katelyn Piche said...

Frosty is right.

Anonymous said...

#TEAM KEEGAN ALL THE WAY.

Anonymous said...

Team keegan

Anonymous said...

Keegans never right #TEAM COLBY

Anonymous said...

GO TEAM COLBY!!!!! It stop going because the gravity was pushing down on it.

Nikki Newcomb said...

I agree with Keegan because after the car was pushed there is no more force pushing on the car.

Anonymous said...

I agree with neither of them. I am always correct. Perhaps the illuminati is at work? Nah, I doubt it. I'd rather believe that I'm actually a dolphin and I'm always the most fabulous one in the room when I enter.

Jealous? You better be.

Anonymous said...

Keegan was right because there was no force

Katelyn Piche said...

The carpet could be friction

shawn Rebel said...

keegan

Anonymous said...

Team Keegan.

Taytey baby said...

Keegan is the best. but he lost to Colby because Colby went first and Colby's car is fat! But Keegan is right. #i love Colby. #i love Keegan.

Noelle Lewis said...

I agree with Keegan because there is no more force pushing the car.

Tristin R said...

I agree with keegan because the force of someone pushing the car or aceleration has worn off.

David Gillette said...

I agree with neither they're both awful. Friction is the reason the cars stopped.

Cory M. said...

Keegan because team Keegan

Lily🐬 said...

keegan wins

Anonymous said...

I agree with Colby because the Air Resistance might have stopped the Model Car.

Anonymous said...

keegan because i like him better

Anonymous said...

Keegan because your push has pretty much run out so it would stop easily

Anonymous said...

Keegan is right because the car had nothing pushing on it to keep it going.

Anonymous said...

I agree with Keegan.

Anonymous said...

Colby because because or particles in the air.
#TEAMFROSTY

Anonymous said...

brap

alanah.t :P said...

Neither of them are correct. Friction from the cras wheels slow it down to a stop. An object in motion must stay in motion until an outside force stops it. Wind resistance and friction are these forces.

Anonymous said...

I agree with keegan because the car would stop because it doesn't have anything pushing it.

Anonymous said...

I agree with colby because the unseen forces that he is talking about is inertia

Madison D said...

Keegan is right because there is nothing pushing on the car to keep it moving

Anonymous said...

I would agree with Keegan, because I don't believe there would be unseen forces to stop the car, but if there isnt any forces pushing the car it can't be rolling by itself.

Bailey said...

Keegan because gravity

Anonymous said...

Keegan is right cuz there was nothing pushing it

Anonymous said...

I agree with Keegan because there was nothing pushing it

Anonymous said...

I agree with Keegan.

Anonymous said...

COLBY IS WRITE

Anonymous said...
This comment has been removed by the author.
Anonymous said...

i agree with colby because what if there was a strong gush of wind..

Anonymous said...

The car stopped because it didn't have enough momentum to continue across the friction-ridden carpet. So, I agree with Colby.