Calculating Speed

1. An airplane leaves California and flies to North  Carolina.  The airplane travels 5 hours at a speed of 804 km per hour.  Which  statement about this trip is true?  (speed = distance/time) 

• California is about  4,020 km from North Carolina.  
• California  is about  800 km from North Carolina. 
• California is about 160 km from North  Carolina.  

Tags

CCSS.HSA.CED.A.1

A car is traveling 50 mph .  It leaves Boston , Massachusetts at 5 a.m. and is traveling to Hartford, Connecticut, which  is 100  miles away.  Without traffic problems or stops, about what  time should the car arrive in Hartford?  

• 6:00 a.m. 
• 6:50 a.m.
• 7:00 a.m.
• 7:50 a.m.

Tags

CCSS.3.MD.A.1

Car W is traveling at 70 miles per hour.   Car X is traveling at 65 miles  per hour. Which statement is true about  the movement of the two cars?  

• Car W will travel farther  than Car X in the  same amount  of time.  
• Car X will  travel farther than Car W in  the same amount of  time.  
• Both Car X and  Car  W will travel the same distance in  the same amount of time. 

Rebecca and  Sara raced  each  other over  a distance of 100 meters.  Rebecca and Sarah  reached the end of the  100 meters at the same time.   Which best  describes the  motion of the  girls? 

• Rebecca ran faster  than  Sarah. 
• Sarah ran faster  than  Rebecca. 
• The  girls ran  in  opposite  directions.  
• The  girls ran at the exact same  average speed. 

Marni runs 1500 meters around the  school  track.  What does she need to know in order to  find out her speed? 

• her time from  start  to  finish 
• the  number of steps  she  took 
• her  heart rate  at  the finish line 
• the direction  she began  running 

Which information is needed to  determine  how fast a  truck  is traveling? 

• direction and  mass  
• distance  and time 
• size and  speed 
• time  and  weight  

Which most affects a baseball's motion  when it is hit by a batter? 

• the mass of the  batter  and  how  high the ball was  thrown
• the mass of the batter and how  fast  the ball was thrown 
• the angle of the  baseball and  how hard  the batter hits the ball 
• the  mass  of  the  baseball and  how hard the  batter  hits it 

Suzy's trip to the store takes 30 minutes. She stays inside the store for 10 minutes before returning home. She follows the exact same route home, making  her  total trip time one  hour and twenty minutes.  Which statement best describes Suzy's motion?

• She slows  down on  the return  trip.  
• She speeds up on  the  return trip. 
• Her speed remains constant.  
• Her speed gains  momentum. 

Marcus traveled west for 2 hours at 50 mph.   He  then  traveled east for another hour at 25 mph. How many miles total  miles did Marcus travel?   (Speed = Distance/Time)  

• 25 miles 
• 75 miles
• 125 miles
• 150 miles 

A runner's times  for each section of a 400-meter race are shown below: 
Results from  400-meter Race
Section           Time  
1st 100  m      11 seconds
2nd 100 m      13 seconds
3rd 100 m       14 seconds
4th  100 m       14.5 seconds
Which best  describes the runner's motion over the course of  the 400-meter race? 

• The runner's speed increased. 
• The runner's speed decreased.  
• The runner's speed stayed the same.  
• The runner's direction stayed the same.