Tuesday, November 5, 2013

Unit 4 Physics II: Day 1 Gravity

Physics II Day 1: Gravity

Energy and force are the same thing! We don’t need this unit!

Not really… now we’ve got FORCE to learn about.
1. What?

  • ENERGY is the ability________to make something move or change.

  • A FORCE is that push or a pull________that makes something move or change.
  • Gravity is considered a pull force.

  • Who is this handsome fellow? Issac Newton.

2. What Force Can Do

·      Make something start movin___________
·      Make something stop moving__________
·      Make something go faster or slower___
·      Make something change direction_____
·      Make something change shape_________

3. How?

The formula for calculating a force on an object is f = m x a
F = force
m = mass

a = acceleration

·      Gravity is considered a  pull force.

Who’s this handsome fellow? Issac Newton

·      Gravity is a force pushing us down to earth.Nope.

·      Gravity is a force that pulls things down. Nope.

·      We have gravity on earth, but not in space or other planets. Nope.

·      Gravity is a force of attraction that exists between any two masses.

·      It just so happens that dense things have more gravity. 

What’s the largest thing that we are close to? The Moon. 

That is why objects are pulled towards the earth.

Quest #1: Watch the Brainpop Video: Gravity here and then define the following words:
  • Gravity 
  • Force
  • Mass
  • Weight
  • Acceleration
AIM Writing Connection
Today’s AIM is KWBAT analyze gravity as a pull force, calculated by multiplying mass and acceleration. Citing evidence from the movie, please explain in 3-5 sentences how this movie relates to this AIM, using the above words:

Quest #2: Complete the Virtual Lab – Investigating the relationship between Mass, Acceleration, and Force here.  

Quest #3: Create an Edmodo account by clicking here

Unit 4 Physics II Day 1 Lifework

Read the article below and make three text-to-self connections. Begin these connections with the words: “This reminds me...” Then answer the questions.

Force and Motion
By Sharon Fabian

1     Force and motion describe everyday things that are happening all the time. Hundreds of times every day, you use force and motion. Did you just pick up a pencil? -- force and motion. Did you turn a page? -- force and motion. Raise your hand? Kick the desk in front of you? Pack your backpack? All of these are examples of force and motion.

2     Out on the playground you can see even bigger and better examples of force and motion. Climbing, jumping, running, chasing, throwing, and sliding all use force and motion.

3     Force and motion are also parts of a complicated branch of science, called physics. Now that you know what force and motion are, the next thing that you should know are some definitions.

4     The scientific definition of force is a push or a pull. When you throw a baseball, you are pushing it through the air. When you pick up a baseball bat you are pulling it up from the ground. When you hit the ball, you use both pushing and pulling motions.

5     Motion is another word with a scientific meaning. Motion means moving something from one place to another. When you used force to swing the bat and hit the baseball, they both moved from one place to another. That's what motion is. In fact, the word motion is a form of the word move.

6     Let's stick with our baseball example for a little bit longer. Some kids can hit a baseball harder than others can. You could say that their baseball travels at a faster rate. Speed is a scientific term that means the rate of motion, or how fast something travels.

7     OK, enough about baseball. Now think about rocks. Why can you throw a little pebble farther than you can throw a huge boulder? The boulder is heavier; it has more weight.

8     The Earth's gravity causes everything on Earth to have weight. Gravity is a force that pulls everything toward the center of the Earth. Gravity is holding both the pebble and the boulder down, at the same time that you are trying to throw them. Gravity is a force acting against your force. Gravity's force is stronger on heavier objects. That's why it is not too hard to throw the pebble, but very hard to throw the boulder. Weight is the measure of gravity's force. Since gravity is holding the boulder with more force than the pebble, the boulder has more weight.

9     Force, motion, speed, gravity, and weight -- everyday words with special meanings in the science called physics.

Three text-to self connections (underline them in the text):



Force and motion are parts of a branch of science called
Description: http://stories.edhelperclipart.com/clipart/bubblea.jpg  Earth science
Description: http://stories.edhelperclipart.com/clipart/bubbleb.jpg  Physics
Description: http://stories.edhelperclipart.com/clipart/bubblec.jpg  Biology
Description: http://stories.edhelperclipart.com/clipart/bubbled.jpg  Geology
________ is the measure of gravity's force.
Description: http://stories.edhelperclipart.com/clipart/bubblea.jpg  Speed
Description: http://stories.edhelperclipart.com/clipart/bubbleb.jpg  Weight
Description: http://stories.edhelperclipart.com/clipart/bubblec.jpg  Force
Description: http://stories.edhelperclipart.com/clipart/bubbled.jpg  Gravity
________ is the force that pulls everything toward the center of the earth.
Description: http://stories.edhelperclipart.com/clipart/bubblea.jpg  Gravity
Description: http://stories.edhelperclipart.com/clipart/bubbleb.jpg  Weight
Description: http://stories.edhelperclipart.com/clipart/bubblec.jpg  Speed
Description: http://stories.edhelperclipart.com/clipart/bubbled.jpg  Force
________ means rate of motion, or how fast something is moving.
Description: http://stories.edhelperclipart.com/clipart/bubblea.jpg  Weight
Description: http://stories.edhelperclipart.com/clipart/bubbleb.jpg  Gravity
Description: http://stories.edhelperclipart.com/clipart/bubblec.jpg  Force
Description: http://stories.edhelperclipart.com/clipart/bubbled.jpg  Speed
Climbing a hill is an example of force and motion.
Description: http://stories.edhelperclipart.com/clipart/bubblea.jpg  True
Description: http://stories.edhelperclipart.com/clipart/bubbleb.jpg  False
Throwing a Frisbee is an example of force and motion.
Description: http://stories.edhelperclipart.com/clipart/bubblea.jpg  True
Description: http://stories.edhelperclipart.com/clipart/bubbleb.jpg  False

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