Introduction
The position of an object can be described by locating it relative to another object or the background.An object’s motion can be described by tracing and measuring its position over time. The position and motion of objects can be changed by pushing and pulling. The size of the change is related to the strength of the push or pull.
Task
At the end of the day, you should be able to:
- Familiarize with different ways in which we move different objects.
- Demonstrate the different ways in which we move different objects.
- Recognize with different ways in which we move different objects.
The class will be grouped to three. The first member will be the leader, one will be the secretary (records the data gathered), and the one will help the leader in conducting an experiment.
Resources will include the usage of internet to assist deeper explanation on your answer on the questions ask in the activities.
Process
You can’t see them, but forces make the world go round. Friction happens when two things rub against each other. Friction makes things slow down. It can also warm them up. Try rubbing your hands together. Are your hands warmer? Gravity is a natural force. It pulls everything down towards the earth.
According to Newton's first law...
What does this mean?
This means that there is a natural tendency of objects to keep on doing what they're doing. All objects resist changes in their state of motion. In the absence of an unbalanced force, an object in motion will maintain this state of motion.
According to Newton's second law...
What does this mean?
Everyone unconsiously knows the Second Law. Everyone knows that heavier objects require more force to move the same distance as lighter objects.
According to Newton's third law...
What does this mean?
This means that for every force there is a reaction force that is equal in size, but opposite in direction. That is to say that whenever an object pushes another object it gets pushed back in the opposite direction equally hard.
When you push a friend on a swing, you are using another force. Pushing moves something in the direction of the push. The harder the push, the further the item goes. Pulling something has a similar action. The harder you pull, the faster something moves along. Pressure is another force. Pressure is force applied by weight. For example, if you press down on a grape, the pressure squishes it. Walk in snow and the pressure of your feet leaves footprints.
Evaluation
|
Advanced |
Proficient |
Partially Proficient |
Novice |
|
16pts-20pts |
11pts-15pts |
6pts-10pts |
5pts-1pt |
|
Describe and provide examples of how the motion of an object can be changed by force. |
Describe how the motion of an object can be changed by force (push or pull). |
Identify, with assistance, the motion of an object that is changed by force. |
Show, with assistance, how the motion of an object can be changed by force. |
Conclusion
Push or Pull is a force applied upon an object resulting from the object'sinteraction with another object. Whenever there is an interactionbetween two objects, there is a force upon each of the objects. When the interaction ceases, the two objects no longer experience the force. Forces only exist as a result of an interaction.
Credits
Websites
1. Google Docs
3. Wikipedia
Images:
1. Google Image
Copy Right
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