Predict How Force Change Motion
Purpose:
Predict how forces can change motion. Provide reasoning and evidence to explain motion changing or not. Answer in Complete Sentences.
Open the Forces and Motion Basics simulation and play with the Friction screen for a few minutes.
Set your value like the picture below.
Imagine that your friend, Sam is trying to move a box.
Using what you learned by exploring, try drawing arrows to predict what might happen in the pictures below. (Try this part without using the simulation.)
Sam not pushing
Sam pushing but box not moving
Sam pushing and box moving
Check your sketches using the sim and make corrections if needed. List any new ideas you discovered.
My sketches were correct because I checked with the simulation, The first two …show more content…
The only factor that needed to be changed to move the fridge is the frictional force for the person to move the fridge.
Try pushing other things. Stack objects on top of each other and apply force. What have you discovered?
I discovered the lighter the object is, the easier the person can push it with lots of frictional force. The most the person can push is a adult(80 lbs) a child(40 lbs) and a present(unknown) with the frictional force in between none and lots. I discovered the person can push all the objects given in the simulator when there is no frictional force, which means there is no resistance.
Can you find different ways to make the Sum of Forces arrow change?
List at least three:
The person pushing the box at full force with frictional force in between none and lots.The sum of forces arrow is a little bit smaller than the applied force on the box.
The person pushing a refrigerator at full force with lots of frictional force. The sum of forces arrow was small and about a third of the frictional force.
The person pushing on a refrigerator at full force with no frictional force. The sum of forces arrow matched the applied force
Predict how forces can change motion. Provide reasoning and evidence to explain motion changing or not. Answer in Complete Sentences.
Open the Forces and Motion Basics simulation and play with the Friction screen for a few minutes.
Set your value like the picture below.
Imagine that your friend, Sam is trying to move a box.
Using what you learned by exploring, try drawing arrows to predict what might happen in the pictures below. (Try this part without using the simulation.)
Sam not pushing
Sam pushing but box not moving
Sam pushing and box moving
Check your sketches using the sim and make corrections if needed. List any new ideas you discovered.
My sketches were correct because I checked with the simulation, The first two …show more content…
The only factor that needed to be changed to move the fridge is the frictional force for the person to move the fridge.
Try pushing other things. Stack objects on top of each other and apply force. What have you discovered?
I discovered the lighter the object is, the easier the person can push it with lots of frictional force. The most the person can push is a adult(80 lbs) a child(40 lbs) and a present(unknown) with the frictional force in between none and lots. I discovered the person can push all the objects given in the simulator when there is no frictional force, which means there is no resistance.
Can you find different ways to make the Sum of Forces arrow change?
List at least three:
The person pushing the box at full force with frictional force in between none and lots.The sum of forces arrow is a little bit smaller than the applied force on the box.
The person pushing a refrigerator at full force with lots of frictional force. The sum of forces arrow was small and about a third of the frictional force.
The person pushing on a refrigerator at full force with no frictional force. The sum of forces arrow matched the applied force