Impulse And Momentum Lab Report

Jessica Vandeveventer

Angela Morrow Baker

SCI 155

3 February 2016

Impulse and Momentum Lab

Purpose/Question-

The Purpose of this lab is to use the impulse and momentum concepts to explain what happens when the eggs are dropped onto various objects.

Hypothesis–

When the eggs are dropped into the frying pan, they will break open.

When the eggs are dropped into the water, the eggs will stay whole. If we were dropping from a higher distance they would break.

When the eggs are dropped onto the pillow, the eggs will bounce a little and stay whole.

Data Tables/ Graphs –

Frying pan

Egg one

The egg breaks when it is dropped. The eggshell is shattered. The yolk is scramble a little bit.

Egg two

The egg breaks when it hits the pan. The eggshell

is not shattered as much as the egg I drop one. The yolk stays more together in second drop.
Egg three
The egg breaks again with this drop. The eggshell is in about three main pieces. The yolk is whole in this drop.

Water
Egg one
The egg splashes and does not break
Egg two
The egg splashes when it hist the water. This time the egg shell cracks at one end. Everything stays in the shell.
Egg three
The egg hits the water and splashes. The eggshell breaks at about a half inch, everything stays inside the eggshell.
Pillow
Egg one
Bounces about an inch off the pillow, and does not break.
Egg two
The egg hits the pillow and bounces off and breaks on the concrete floor.
Egg three
The egg bounces on the pillow, and stays whole.

Analysis Questions-
1. What was your hypothesis for each of the three cases?
When the eggs are dropped into the frying pan, they will break open.
When the eggs are dropped into the water, the eggs will stay whole.
When the eggs are dropped onto the pillow, the eggs will bounce a little and stay whole.
2. What were your results for each case? Create a table if needed.
Frying pan
Egg one
The egg breaks when it is dropped. The eggshell is shattered. The yolk is scramble a little bit.
Egg two
The egg breaks when it hits the pan. The eggshell is not shattered as much as the egg I drop one. The yolk stays more together in second drop.
Egg three
The egg breaks again with this drop. The eggshell is in about three main pieces. The yolk is whole in this drop.
Water
Egg one
The egg splashes and does not break
Egg two
The egg splashes when it hist the water. This time the egg shell cracks at one end. Everything stays in the shell.
Egg three
The egg hits the water and splashes. The eggshell breaks at about a half inch, everything stays inside the eggshell.
Pillow
Egg one
Bounces about an inch off the pillow, and does not break.
Egg two
The egg hist the pillow and bounces off and breaks on the concrete floor.
Egg three
The egg bounces on the pillow, and stays whole.

3.

Which scenario did the egg have the biggest change in momentum? Explain your answer.

The scenario that has the biggest change in momentum is the one when you drop the egg onto the pillow. This is because the egg comes to a stop and changes direction, so that is why it has the greatest change in momentum. The change in momentum is calculated by multiplying the force by the time.

4. How would you explain your results using the terms: impulse, momentum, force, and time? Use equations to help you explain the results.

The momentum of an egg dropped into a frying pan at shoulder height is going to be the m x v (mass times velocity). This is going to be the same whether you drop the egg into a frying pan, into a bucket of water, or onto a pillow. The impulse in the egg drop report is the force of the egg multiplied by the time. This is when the egg is in contact with the object and the time that it stays their. When the eggs bounced of the pillow we see a greater change in momentum. We see the momentum come to a stop, but the momentum changes directions. The change in momentum is calculated by multiplying force times time.

5. In light of this experiment, can you offer any advice to children in how to create a device that will keep an egg from breaking when thrown off of their school’s

rooftop?
I would recommend that they drop the eggs onto a pillow, but make sure the egg land on the pillow.

I would advise them to make a pillow like contraption that would allow the egg to land on it with out rolling of the pillow.

Claim-

The eggs when dropped in the egg lab will either break or not break upon impact with the object. The eggs will break when they hit the frying pan. The eggs that are dropped into the bucket of water will sometimes break and sometimes stay whole. The eggs that are dropped onto a pillow will not break.

Evidence-
When the first egg was dropped into the frying pan it broke. After the next two drops the eggs still broke. We get to see this evidence by testing and recording the observation. We can do the same tests for dropping eggs onto a pillow and into a bucket of water. When the eggs were dropped into the bucket of water we saw that the first egg did not break, but the second two eggs broke. The eggs that I dropped onto the pillow the first and third eggs did not break. The second egg that I dropped onto the pillow bounced off the pillow and broke.
Reflection-
After dropping the eggs onto the frying pan, into the bucket of water, and onto the pillow my ideas have remained mostly the same. The only change in my ideas was when the eggs were dropped into the bucket of water. I said that the eggs would remain whole. One of my three eggs remained whole, the other two broke. I have a few new questions. What would happen if you dropped the eggs from a higher place onto a pillow would they stay whole or would they break? Would the eggs have the same chance on pillows that have different softness levels. The connections I mad from the lab and reading of the text book is that the impulse of landing on different objects is different.