1. Physics of Basketball
By: Maya Zee

2. Newton’s First Law At rest Unbalanced Force Moving
The basketball is at rest until a player picks up the ball. When the ball is on the floor (at rest) it is a balanced force (F gravity = F normal), the ball will stay at rest until an unbalanced force (a player- Fapp) picks it up and throws it. Then the ball will keep moving until another unbalanced force stops it.

3. Free Body Diagram FN Fg
At Rest Fg
Fapp Ff
-fluid FN
Thrown

4. Energy No Energy Chemical & Thermal Energy Gravitational Energy
Kinetic Energy Thermal Sound

5. Energy No Energy = The ball is at rest
Chemical & Thermal Energy = Player is using their muscles to move the ball & the ball is colliding with air molecules
Gravitational Energy = The ball is being held above the ground so it has more gravitational potential energy
Kinetic Energy = The ball is in motion after being thrown by the player
Thermal = The ball collides with air molecules as it is thrown through the air
Sound = The ball hits the floor and makes a sound

6. Newton’s Second Law
A person with more mass (Mr. Guthrie) and a person with less mass (Sierra) both run at the same speed. Mr. Guthrie will have to exert more force to run at the same speed as Sierra because he has more mass. When the two collide there will be a bigger amount of force exerted on Sierra because Mr. Guthrie has more mass than her.

7. Free Body Diagram Fg Ff Fapp FN Fg Ff Fapp FN Sierra Mr. Guthrie
-Sliding
Fapp FN
Mr. Guthrie Fg Ff
-Sliding
Fapp FN
Sierra
More Mass
LessMass
Fix up and down arrows to reflect more mass and less mass DONE

8. Energy No Energy Chemical Energy Kinetic Energy
Thermal Energy Sound Energy No Energy
Mr. Guthrie
No Energy Chemical Energy Kinetic Energy
Thermal Energy Sound Energy Gravitational Energy
Thermal Energy Sound Energy
Sierra

9. Energy Sierra No Energy = Not moving
Chemical Energy = Using her legs to run towards Mr. Guthrie
Kinetic Energy = Moving towards Mr. Guthrie
Thermal Energy = Body colliding with the air molecules
Sound Energy = Hitting Mr. Guthrie after running at him
Gravitational Energy = Flying after collision with Mr. Guthrie
Thermal Energy = When flying through the air she is colliding with air particles
Sound Energy = Sound after hitting the floor
Mr. Guthrie
No Energy = Not moving
Chemical Energy = Using his legs to run towards Sierra
Kinetic Energy = Moving towards Sierra
Thermal Energy = Body colliding with the air molecules
Sound Energy = Hitting Sierra after running at her
No Energy = Stopped running after collision

10. Newton’s Third Law
Someone shoots the ball and misses terribly. When she missed the basketball hit the backboard and exerted a force on it. The backboard then exerted a force back on the basketball with equal strength. This made the basketball fly the opposite way.

11. (Flying through the air)
Free Body Diagram FN Ff
-fluid
Fapp Fg
Fapp Ff
-fluid
Basketball
(Flying through the air) Fg
Backboard
(Can’t/Doesn’t move)
Ff (fluid) up left picture DONE

12. Energy No Energy Chemical Energy Kinetic Energy Thermal Energy
Gravitational & Kinetic Energy Kinetic Energy
Thermal Energy Sound Energy

13. Energy No Energy = When the ball is on the floor
Chemical Energy = The player uses their muscles to pick up the ball
Kinetic Energy = The ball moves through the air
Thermal Energy = When the ball is moving through the air it collides with air molecules
Gravitational & Kinetic Energy = The ball is thrown (moving) and has height
Kinetic Energy = The ball hits the backboard and falls down
Thermal Energy = When the ball is falling it collides with air molecules
Sound Energy = The ball makes a sound when it hits the floor

14. Newton’s Third Law Action Reaction
When two basketballs roll at each other, one ball will hit the other applying a force (action), then the other ball pushes back on the other ball with a force, causing both balls to roll away from each other [equal and opposite] (reaction).

15. Free Body Diagram Fg Ff Fapp FN Fg Fapp FN Ff Ball #1 Ball #2 -Rolling

16. Energy No Energy Chemical Energy Kinetic Energy
Thermal Energy Sound Energy Kinetic Energy
No Energy

17. Energy No Energy = Both of the balls at rest
Chemical Energy = Players using her hands to push the balls towards one another
Kinetic Energy = Both balls rolling towards one another
Thermal Energy = The balls colliding with ground molecules and air molecules
Sound Energy = Both balls hitting each other making a sound
Kinetic Energy = After both of the balls hit they roll the other way
No Energy = After the balls roll away from contact they slow down and finally stop