Handed back and went over any questions on test.
Handed back reading assignment worksheets on Newton's Laws from Everyday Science Explained.
Go over worksheet.
1. Newton's First Law of Inertia - Law of Inertia.
2. What is meant by inertia?
Demo with railway tie and hammer.
Explain table cloth
Students try table cloth, pennies and quarters, Mr. Potato Head, Eggs
Demo with Intel Man and car.
Monday, December 8, 2008
Monday, Dec 8, 2008 - Block 4B
Students took motion test.
When done, they handed in their test papers and picked up the reading assignment from Everyday Science Explained on Newton's 3 laws. They got books from the back of the classroom.
Students worked on the assignment individually until everyone was done with their tests. After that I allowed them to work quietly with another student.
Reading Assignment sheets were due by the end of the class.
When done, they handed in their test papers and picked up the reading assignment from Everyday Science Explained on Newton's 3 laws. They got books from the back of the classroom.
Students worked on the assignment individually until everyone was done with their tests. After that I allowed them to work quietly with another student.
Reading Assignment sheets were due by the end of the class.
Friday, December 5, 2008
Friday, Dec 5, 2008 - Block 4A
Students took motion test.
When done, they handed in their test papers and picked up the reading assignment from Everyday Science Explained on Newton's 3 laws. They got books from the back of the classroom.
Students worked on the assignment individually until everyone was done with their tests. After that I allowed them to work quietly with another student.
Reading Assignment sheets were due by the end of the class.
When done, they handed in their test papers and picked up the reading assignment from Everyday Science Explained on Newton's 3 laws. They got books from the back of the classroom.
Students worked on the assignment individually until everyone was done with their tests. After that I allowed them to work quietly with another student.
Reading Assignment sheets were due by the end of the class.
Thursday, December 4, 2008
Thursday, Dec 4, 2008 - Block 4B
Handed out Guided Note Packets for Chapter 8. Students copied from overhead through unbalanced forces.
Handed out review packet for test. Gave students most of the rest of the class to work on the packet. At the end of the class, went around class and wrote answers on board.
Test on Monday on motion and momentum.
Handed out review packet for test. Gave students most of the rest of the class to work on the packet. At the end of the class, went around class and wrote answers on board.
Test on Monday on motion and momentum.
Wednesday, December 3, 2008
Wednesday, Dec 3, 2008 - Block 4A
Handed out Guided Note Packets for Chapter 8. Students copied from overhead through unbalanced forces.
Handed out review packet for test. Gave students most of the rest of the class to work on the packet. At the end of the class, went around class and wrote answers on board.
Test on Friday on motion and momentum.
Handed out review packet for test. Gave students most of the rest of the class to work on the packet. At the end of the class, went around class and wrote answers on board.
Test on Friday on motion and momentum.
Tuesday, December 2, 2008
Tuesday, Dec 2, 2008 - Block 4B
Content Objectives
Student will be able to:
Define what is meant by force
Define Impulse
Define Momentum
Explain with examples: Impulse = Change in Momentum
State and define the two main types of collisions
We talked about speed - how fast you are going.
Does direction matter? yes. If you combine speed with direction
Students were able to define force as a push or a pull
Gave examples of balanced forces - no change in motion
If the forces are unbalanced, there is a change in motion
We describe changes in motion by acceleration = rate of change in velocity = change in velocity/time
The acceleration of gravity at the surface of the Earth is about 9.8 m/s/s which we approximate as 10 m/s/s. We found this from the Picket Fence Lab
If you drop an object and it falls for 1 second, what is its speed? 10 m/s
after 2 seconds? 20 m/s
after 5 seconds? 50 m/s
Why does the speed increase? The force acted for a longer period of time.
If you want to really increase the speed of an object, you apply the biggest force for the longest time.
Force * Time = Impulse It is a measure of how you change an objects motion.
If I throw a tennis ball at you, it is easy to catch. It is easy to stop it.
If I throw a bowling ball, it is much harder to stop. It has something more because of its mass. For the same speed, it is easier to stop the object with the smaller mass.
However, would you rather stop a bowling ball I throw to you or a bullet fired from a gun? In this case, even though it has less mass, the bullet has something more because of its speed. There are two things involved, mass and speed. In addition, direction matters. It does make a difference if the gun is aimed at you or away from you. Instead of speed, we use velocity.
Momentum = mass * velocity It is a measure of how hard it is to stop. A sports team on a winning streak has a lot of momentum - hard to stop. When you catch a bowling ball, you make the sound, "ooomph". This is the technical term. When you see a really massive object, you say, "OOO that's really massive". The "mph" is how fast you are going.
Impulse = change in momentum
Force * time = m vf - m vi
For the same change in momentum, you can have very different forces depending on the time of collision. Several examples: jumping into a net or sidewalk, catching a baseball, stopping an egg.
Went outside and did egg toss lab with sheet. Later tossed between partners.
There are two main types of collisions, elastic - things bounce, inelastic - things stick. Demonstrate with air track.
Show elastic collisions with Newton's Cradle.
What will happen when objects of different masses collide elastically. Demonstrate golf ball hitting bowling ball, bowling ball hitting golf ball. Both coming together. Competition with bowling ball and golf ball.
Test on Monday next week on motion and momentum.
Student will be able to:
Define what is meant by force
Define Impulse
Define Momentum
Explain with examples: Impulse = Change in Momentum
State and define the two main types of collisions
We talked about speed - how fast you are going.
Does direction matter? yes. If you combine speed with direction
Students were able to define force as a push or a pull
Gave examples of balanced forces - no change in motion
If the forces are unbalanced, there is a change in motion
We describe changes in motion by acceleration = rate of change in velocity = change in velocity/time
The acceleration of gravity at the surface of the Earth is about 9.8 m/s/s which we approximate as 10 m/s/s. We found this from the Picket Fence Lab
If you drop an object and it falls for 1 second, what is its speed? 10 m/s
after 2 seconds? 20 m/s
after 5 seconds? 50 m/s
Why does the speed increase? The force acted for a longer period of time.
If you want to really increase the speed of an object, you apply the biggest force for the longest time.
Force * Time = Impulse It is a measure of how you change an objects motion.
If I throw a tennis ball at you, it is easy to catch. It is easy to stop it.
If I throw a bowling ball, it is much harder to stop. It has something more because of its mass. For the same speed, it is easier to stop the object with the smaller mass.
However, would you rather stop a bowling ball I throw to you or a bullet fired from a gun? In this case, even though it has less mass, the bullet has something more because of its speed. There are two things involved, mass and speed. In addition, direction matters. It does make a difference if the gun is aimed at you or away from you. Instead of speed, we use velocity.
Momentum = mass * velocity It is a measure of how hard it is to stop. A sports team on a winning streak has a lot of momentum - hard to stop. When you catch a bowling ball, you make the sound, "ooomph". This is the technical term. When you see a really massive object, you say, "OOO that's really massive". The "mph" is how fast you are going.
Impulse = change in momentum
Force * time = m vf - m vi
For the same change in momentum, you can have very different forces depending on the time of collision. Several examples: jumping into a net or sidewalk, catching a baseball, stopping an egg.
Went outside and did egg toss lab with sheet. Later tossed between partners.
There are two main types of collisions, elastic - things bounce, inelastic - things stick. Demonstrate with air track.
Show elastic collisions with Newton's Cradle.
What will happen when objects of different masses collide elastically. Demonstrate golf ball hitting bowling ball, bowling ball hitting golf ball. Both coming together. Competition with bowling ball and golf ball.
Test on Monday next week on motion and momentum.
Wednesday, Nov 26, 2008 - Block 4A
Content Objectives
Student will be able to:
Define what is meant by force
Define Impulse
Define Momentum
Explain with examples: Impulse = Change in Momentum
State and define the two main types of collisions
We talked about speed - how fast you are going.
Does direction matter? yes. If you combine speed with direction
Students were able to define force as a push or a pull
Gave examples of balanced forces - no change in motion
If the forces are unbalanced, there is a change in motion
We describe changes in motion by acceleration = rate of change in velocity = change in velocity/time
The acceleration of gravity at the surface of the Earth is about 9.8 m/s/s which we approximate as 10 m/s/s. We found this from the Picket Fence Lab
If you drop an object and it falls for 1 second, what is its speed? 10 m/s
after 2 seconds? 20 m/s
after 5 seconds? 50 m/s
Why does the speed increase? The force acted for a longer period of time.
If you want to really increase the speed of an object, you apply the biggest force for the longest time.
Force * Time = Impulse It is a measure of how you change an objects motion.
If I throw a tennis ball at you, it is easy to catch. It is easy to stop it.
If I throw a bowling ball, it is much harder to stop. It has something more because of its mass. For the same speed, it is easier to stop the object with the smaller mass.
However, would you rather stop a bowling ball I throw to you or a bullet fired from a gun? In this case, even though it has less mass, the bullet has something more because of its speed. There are two things involved, mass and speed. In addition, direction matters. It does make a difference if the gun is aimed at you or away from you. Instead of speed, we use velocity.
Momentum = mass * velocity It is a measure of how hard it is to stop. A sports team on a winning streak has a lot of momentum - hard to stop. When you catch a bowling ball, you make the sound, "ooomph". This is the technical term. When you see a really massive object, you say, "OOO that's really massive". The "mph" is how fast you are going.
Impulse = change in momentum
Force * time = m vf - m vi
For the same change in momentum, you can have very different forces depending on the time of collision. Several examples: jumping into a net or sidewalk, catching a baseball, stopping an egg.
Went outside and did egg toss lab with sheet. Later tossed between partners.
Lindsey had quite a collision with the egg.
There are two main types of collisions, elastic - things bounce, inelastic - things stick. Demonstrate with air track.
Show elastic collisions with Newton's Cradle.
What will happen when objects of different masses collide elastically. Demonstrate golf ball hitting bowling ball, bowling ball hitting golf ball. Both coming together. Competition with bowling ball and golf ball.
Test on Friday on motion and momentum.
Student will be able to:
Define what is meant by force
Define Impulse
Define Momentum
Explain with examples: Impulse = Change in Momentum
State and define the two main types of collisions
We talked about speed - how fast you are going.
Does direction matter? yes. If you combine speed with direction
Students were able to define force as a push or a pull
Gave examples of balanced forces - no change in motion
If the forces are unbalanced, there is a change in motion
We describe changes in motion by acceleration = rate of change in velocity = change in velocity/time
The acceleration of gravity at the surface of the Earth is about 9.8 m/s/s which we approximate as 10 m/s/s. We found this from the Picket Fence Lab
If you drop an object and it falls for 1 second, what is its speed? 10 m/s
after 2 seconds? 20 m/s
after 5 seconds? 50 m/s
Why does the speed increase? The force acted for a longer period of time.
If you want to really increase the speed of an object, you apply the biggest force for the longest time.
Force * Time = Impulse It is a measure of how you change an objects motion.
If I throw a tennis ball at you, it is easy to catch. It is easy to stop it.
If I throw a bowling ball, it is much harder to stop. It has something more because of its mass. For the same speed, it is easier to stop the object with the smaller mass.
However, would you rather stop a bowling ball I throw to you or a bullet fired from a gun? In this case, even though it has less mass, the bullet has something more because of its speed. There are two things involved, mass and speed. In addition, direction matters. It does make a difference if the gun is aimed at you or away from you. Instead of speed, we use velocity.
Momentum = mass * velocity It is a measure of how hard it is to stop. A sports team on a winning streak has a lot of momentum - hard to stop. When you catch a bowling ball, you make the sound, "ooomph". This is the technical term. When you see a really massive object, you say, "OOO that's really massive". The "mph" is how fast you are going.
Impulse = change in momentum
Force * time = m vf - m vi
For the same change in momentum, you can have very different forces depending on the time of collision. Several examples: jumping into a net or sidewalk, catching a baseball, stopping an egg.
Went outside and did egg toss lab with sheet. Later tossed between partners.
Lindsey had quite a collision with the egg.
There are two main types of collisions, elastic - things bounce, inelastic - things stick. Demonstrate with air track.
Show elastic collisions with Newton's Cradle.
What will happen when objects of different masses collide elastically. Demonstrate golf ball hitting bowling ball, bowling ball hitting golf ball. Both coming together. Competition with bowling ball and golf ball.
Test on Friday on motion and momentum.
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