Mu Friction

Friction occurs every time two objects come into contact. Friction is the reason why a soccer ball wont keep rolling on forever. Friction technology is also used in shoes to complete different tasks. For example soccer cleats are made to create friction in grass to better play soccer. Where as hiking shoes are made with materials to create friction to better climb.

Another Planet

My planet name is Detis. This planet is twice the size of earth and can also maintain human life. Planet Detis is different from earth because of its size and weight. It is also different from earth because of its gravitational pull which would be double that of earth because it is double the size. Although the pull of gravity on your body would be proportional.

Mass and Newtons first law

Find three examples in your life that show the correlation between inertia and Newton’s 1st Law, and the amount of mass something has. For each example describe why it shows inertia, and how the amount of mass affects how it behaves.

• One example I have experienced in my life that shows the correlation between inertia and Newtons 1st Law is riding a bike because when i attempted to use the breaks it would take a few seconds for the bike to come to a complete stop. This shows a correlation because the bike was in motion and wanted to stay in motion.
• Another example is turning off a fan because when a fan is turned off the motion of the blades continues for a while therefore it is and example of inertia and Newtons 1st Law.
• Lastly I notice when I kick a ball down a hill the ball will continue to roll until an unbalanced force like friction stops it.

Inertia Investigation

Describe and explain 3 instances in your day where you saw inertia.Make at least one example where something continued to move and on that stayed still.

• One example of inertia I observed is a moving car. This is an example of inertia because the car is an object in motion
• Another example of inertia is a large rock sitting in grass. This is an example of inertia because the rock is an object at rest therefore it's an example of inertia.
• A plane in mid flight is an example of inertia because it is moving at a constant rate.

Balanced and unbalanced

Find an example of two freed body diagrams one that is balanced and on that is unbalanced. For each, describe the forces that are on them and what makes them balanced or unbalanced.

This is an example of a balanced free body diagram. The reason this free body diagram is balances is because all the forces included in the free body diagram are equal and balanced.

                                                       
This is an example of an unbalanced free body diagram. The reason this free body diagram is unbalanced is because not all of the forces are balanced.

Free Body Diagrams

Question: Post or provide a link to a free body diagram you found online. First, describe what the object is and how it's moving. Then name and describe the forces that are shown on the diagram.






Answer: This free body diagram is an object being pushed to the right. I know this because the Fnorm is equal to Fgrav so the is nothing pulling it further up or down than gravity and normal force already are. Also Ffrict and Fapp show the object is being pushed.

Vectar and Scalar

Question:Explain the difference between vector and scalar and find an example of each that we did not cover in class (you can use the internet or pull from your own life)

Answer: The main difference between a vectar and a scalar is a scalar can be described by just magnitude,size,or a number. Where as a vectar is described with magnitude as well as direction. That is the main difference between vectar and scalar.