Soccer retake - Contact Forces (version 3)

Last updated over 1 year ago

13 questions

Instructions

Required

Soccer retake - Contact Forces (version 3)

Last updated over 1 year ago

13 questions

Instructions

Soccer is becoming more and more popular in the United States. And while other soccer-related injuries are happening less frequently, youth soccer players in the United States are experiencing more concussions. A concussion is a type of traumatic brain injury caused by the head experiencing an impact and moving quickly back and forth, causing the brain to bounce around in the skull.

A concussion can result from a force of 400–1,000 N on the head. There has been debate in different sports about how to best prevent concussions. In soccer, one idea is to ban headers (when a ball makes contact with a head) in youth and professional soccer.

Required

How would the forces from a header with such a light soccer ball cause a concussion?

Draw arrows in the force diagram to show where the force is pushing on each object.

Required

There are three types of collisions that tend to happen frequently in soccer: (a) headers, (b) collisions between players’ heads, and (c) a player’s head hitting the ground.

How would the amount of force on the head compare to the amount of force on the object it collides with (a soccer ball (a), another head (b), or the ground (c) in each system A, B, and C?

Which two of these are true (and support your answer to #2)?

The force is always greater on the object that has more kinetic energy before the collision
Peak forces are always equal to each other in strength, even if one object has more mass or speed before contact
Forces always come in pairs, they are acting on each other
The force is always greater on the object that has more mass

True (and supports my answer to the previous question)
False

Required

Sports scientists concluded that concussions result from headers, a running player colliding with another running player, and a running player hitting the ground.

So far in this unit, we have looked at collisions and how much kinetic energy the objects in the system have before they collide and how this is related to the peak forces they can produce in any collision.

Let’s consider the three main types of systems that can lead to concussions and make predictions about them using forces and energy as it relates to player #84.

Think about kinetic energy! Considering both objects that are about to collide in each interaction, which system would you predict to have the LEAST amount of total kinetic energy in the system right before the objects collide?

In each instance below, player #84 is running at a speed of 7 miles per hour.

Required

The brain is an organ made of interconnected cells called neurons. Neurons send signals to communicate information from one neuron cell to another. The long part of the neuron is called an axon, and those axons have a breaking point. Recent research provides evidence that permanent damage to axons in the brain occurs from just a single damaging head collision (concussion).

Axons in the brain:

Write an argument: During a head collision, which system (A, B, or C) would be most likely to cause damage to some of the axons in the brain? Use ideas related to kinetic energy, peak forces, and breaking point for these structures in the brain and axons in your argument.

Peak forces between 2 objects in a collision are always

Required

Objects that are NOT moving have Kinetic Energy

Greater forces in a collision = greater damage or shape change

Required

Draggable item		Corresponding Item
contact force		a force applied when two objects touch
peak force		two objects hitting one another and exerting a force
kinetic energy		the maximum amount of force applied during a collision
collision

Required

In your own words, what does deform mean?

Required

Draw an image to explain "deform"

Required

One thing I did to study for this assessment was:

Required

Please give one specific compliment about a teacher or other adult here at WMS. Remember, we compliment people's skills, talents, and character traits, not just their physical appearance.

Soccer retake - Contact Forces (version 3)

Soccer retake - Contact Forces (version 3)

How would the forces from a header with such a light soccer ball cause a concussion? Draw arrows in the force diagram to show where the force is pushing on each object.

Which two of these are true (and support your answer to #2)?

Peak forces between 2 objects in a collision are always

Objects that are NOT moving have Kinetic Energy

Greater forces in a collision = greater damage or shape change

In your own words, what does deform mean?

Draw an image to explain "deform"

One thing I did to study for this assessment was:

Please give one specific compliment about a teacher or other adult here at WMS. Remember, we compliment people's skills, talents, and character traits, not just their physical appearance.

How would the forces from a header with such a light soccer ball cause a concussion? Draw arrows in the force diagram to show where the force is pushing on each object.

Which two of these are true (and support your answer to #2)?

Peak forces between 2 objects in a collision are always

Objects that are NOT moving have Kinetic Energy

Greater forces in a collision = greater damage or shape change

In your own words, what does deform mean?

Draw an image to explain "deform"

One thing I did to study for this assessment was:

Please give one specific compliment about a teacher or other adult here at WMS. Remember, we compliment people's skills, talents, and character traits, not just their physical appearance.

How would the forces from a header with such a light soccer ball cause a concussion?

Draw arrows in the force diagram to show where the force is pushing on each object.

How would the forces from a header with such a light soccer ball cause a concussion?

Draw arrows in the force diagram to show where the force is pushing on each object.