bk+1+1.1

I. Describing and Measuring Motion =A. Motion= =1. Object is in motion when it's distance from another object is changing.= =2. Something is moving when it's position changes relative to it's reference point= =B. Reference Point= =1. A place or object used for comparison to determine if something is in motion.= =2. It MUST be in sight of a moving object.= =3. It cannot be going in the same direction and speed.= =C. International System of Units= =1. SI (System Internationale)- (French)= =2. Based on 10= =3. Basic unit - meter= =i. centimeter= 1/100 of a meter= =ii. millimeter= 1/1000 of a meter= =iii. kilometer= 1000 meters= = = =King Henry Died Monday Drinking Chocolate Milk=

=D. Speed= =1. Speed of an object is the distance the object travels in one unit of time.= =2. A type of rate= =i. rate - the amount of something that occurs or changes in one unit of time.= =3. speed= distance/time= =4. /= per (measurement)/(time)= =5. Constant speed - if the sped of an object is not changed.= =i. speed is the same at ALL times during motion.= = = 6. Average Speed i. most objects travel at various speeds ii. = total distance/total time Study guide 1. meter 2. time 8. the total distance traveled divided by total time 9. 30km/sec 10. all over the world 11. constant speed 12. 15 km/h 22. bicycle 23. south 24. speed 25. constant


 * Notes Day 2**

=**E. Velocity**= =1.speed in a given direction= =2. you need to know speed and direction to know velocity= =3. velocity-formula for speed (distance/time) +direction= =4. key difference between speed & velocity- velocity is speed+direction= =**F. Graphing Motion**= =**1. x axis=time(sideways)**= =**2. y axis=distance(up & down)**= =**3. steeper slope=faster motion**= =**4. straight diagnal line=constant speed**= =**5. horizontal line=(at bottom)-object not moving**= =**6. Distance vs time graph**= =**7. steepness is called the RISE.**= = =
 * study guide**
 * 3. velocity of the object**
 * 4. the rise**
 * 13. the objects velocity did not change**
 * 16. false=speed**
 * 17. true**
 * 18. true**
 * 21. true**
 * 28. slope**
 * 29. distance in time**
 * 30. 3 m/s -ball at constant speed-x 2 (final 2 seconds)= 6 m**
 * 1.1 quiz**
 * middle graph pg 24**
 * 1. 200 m/m**
 * 2. 160 m/min**
 * 3. 160**