Our class went to the Minnesota Science Museum. We explored the exhibits as a group. We studied about motion at the museum. We learned about systems and how they worked. We saw Tornado Alley in the Omnitheater. The seats were cool, they reclined and the screen came down in front of us. We also saw the dinosaurs and the mummy. There were so many cool exhibits to explore. One of our favorites was the violin you played to see the sound waves. Another was the tornado, if you put your hand in it, it would be wrecked. We also saw magnets and how it is part of Nano Technology. The whole trip was fun!
Some questions we still have about motion are:
1. What are Newton's Three Laws of motion?
2. Why is Newton's third law so important?
3. If you're going slow, how do you go fast?
4. Why motion so important?
5. Why do some things need electricity to move?
6. How do you make the ball stay on the track?
We hope you will help us answer these questions!!!
Looks like you had a great time! Rollercoasters are so much fun. Newton had a great time explaining how things move. He put those ideas into 3 Laws (or rules for how things move).
ReplyDeleteThe first one says an object at rest tends to stay at rest, and an object in motion tends to stay in motion, with the same direction and speed. Motion (or lack of motion) cannot change without an unbalanced force acting. If nothing is happening to you, and nothing does happen, you will never go anywhere. If you're going in a specific direction, unless something happens to you, you will always go in that direction. Forever.
The second law brings in how much mass (or packed in molecules) an object has. If you exert the same force on two objects of different mass, you will get different accelerations (changes in motion). The effect (acceleration) on the smaller mass will be greater (more noticeable).
The third law says that for every action (force) there is an equal and opposite reaction (force). Forces are found in pairs. It's an issue of symmetry. Acting forces encounter other forces in the opposite direction. There are loads of examples for this one that you already know. A cannonball shot out of a cannon pushes the cannon backwards. Stomping on a ketchup packet explodes the wrapper of the packet and shoots ketchup everywhere. Hitting a ball with a bat causes the vibration of the hit to travel through your arms.
Motion is so much fun to explore! Hope this helps.