Describe each of the four types of forces in your own words. For each one, give an example of it in your own life.
One force is applied force, which is when an object is pushed or pulled that was caused be a person or a thing. I use this force to open doors, I either push it or pull the door to get by.
The second force is a Tension force, which is when you are pulling an object. I use this force when i put my hair up and tie it with an elastic band.
The third force is a normal force, which is when an object that is pushing up against gravity. For example a chair that I sit on is pushing me up so I wont fall down to the ground.
The fourth force is gravitational force, it is a force that is attracting two objects. Such as earth, it attracts the sun and the moon
Briana's Physics Homework Blog
Monday, November 16, 2015
Monday, November 2, 2015
Barbie Bungee Data Estimates
Estimate wht you think the drop distance will be for Barbie if you had...
10 rubber bands?
20 rubber bands?
30 rubber bands?
Explain how you estimated these drop distances.
I think the drop distance for Barbie if we had 10 rubber bands 145 because every band you put makes it go at least 10 cm longer.
20 rubber bands- I think it'll go at least 280 cm because I multiply the estimate I got for 10 rubber bands by two.
For 30 rubber bands I think it'll go 430 cm long because I also multiplied the number I got for 10
runner bands but by three times.
10 rubber bands?
20 rubber bands?
30 rubber bands?
Explain how you estimated these drop distances.
I think the drop distance for Barbie if we had 10 rubber bands 145 because every band you put makes it go at least 10 cm longer.
20 rubber bands- I think it'll go at least 280 cm because I multiply the estimate I got for 10 rubber bands by two.
For 30 rubber bands I think it'll go 430 cm long because I also multiplied the number I got for 10
runner bands but by three times.
Friday, September 25, 2015
Metric Units
Explain why we used metric in science class instead of English units. Find/list at least three things in your home or your neighborhood that has metric units.
We use the metric system in science class instead of the English because it's easy to use it and how the English units. Three things in my home that has metric units is how we have measuring cups, a scale but we put the settings as metric units, and a blender.
We use the metric system in science class instead of the English because it's easy to use it and how the English units. Three things in my home that has metric units is how we have measuring cups, a scale but we put the settings as metric units, and a blender.
Estimating Distances
Estimate the length of the front of your house. Write a short procedure of how you estimate this distance. Explain if you think this estimate is reasonable or unreasonable and why.
I think the length of the fr My of my house is about a meter stick long.
Procedure- 1. I looked at the front of the house 2. Then I looked at a meter stick and it was about the same length. I think this estimate reasonable because the sidewalk its pretty long.
I think the length of the fr My of my house is about a meter stick long.
Procedure- 1. I looked at the front of the house 2. Then I looked at a meter stick and it was about the same length. I think this estimate reasonable because the sidewalk its pretty long.
Wednesday, September 23, 2015
Reaction Time
Describe what reaction time is and explain three examples of reaction time in in your own life.
Reaction time is the amount of time you react to something that happened. It includes both of the decision and the action you are going to make. First you must decide to act then you need to complete the action. Three reaction times in my life is when someone calls either on my phone or the house phone, when someone calls my name, and when I cross the street.
Reaction time is the amount of time you react to something that happened. It includes both of the decision and the action you are going to make. First you must decide to act then you need to complete the action. Three reaction times in my life is when someone calls either on my phone or the house phone, when someone calls my name, and when I cross the street.
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