After talking about what we just saw, we wrote three scenarios down.
-Jack and T.J. leaned against one another
-Finley punched a wall
-Finley pushed T.J.
We concluded that whenever you exert a force on something, it exerts the same force on you.
We then talked a bit about forces and Sir Issac Newton.
He had three laws of motion:
1. An object not moving stays not moving and an object moving continues moving at a constant rate unless an unbalanced force is exerted.
3. When things interact, they exert forces on another - equal in size and in opposite directions.
2. a=Fnet over m means the more force, the greater acceleration. More mass, slower acceleration.
After this, we got into the moon and the force it exerts on the earth. The tides are something big and controlled by the moon's force.
We drew a picture (you might now be able to read mine but I'll point them out).
The oval-like circle represents the tides, the round one the Earth. The arrow is a force diagram of the moon on Earth.
We noted that whatever happens on one side happens on the other.
I would have more, but I ran out of paper in my notebook and used a sheet of scrap paper.
-EL
Could you explain what Spring and Neap tides are? I had them in my nots but then I lost them. I think it was someting about how strong they were?
ReplyDeleteDB
Spring tides are tides that occur when the Earth, moon, and sun are in a straight line. The moon and the sun are exerting forces on the Earth in different directions, so in those directions, the tides will be very high. Spring tides are tides with large contrasts, a high high tide and a low low tide.
ReplyDeleteNeap tides are basically the opposite. It is when the Moon-Earth line is perpendicular to the Earth-Sun line. The moon exerts a bit more force than the sun because it is close to the Earth, so there is still high tide and low tide, but because the moon and the sun are pulling in different directions, the high and low tide aren't as extreme.
YZ