Motion, Displacement, Speed, Velocity, Acceleration

What is the total distance traveled if the object went from A around to F? 

• 11 km
• 13 km

A car travels 20 meters east in 1.0 second.  How far (displacement) did the car travel?

• D=st
  D=20x1
  D=20m
• 20+1=21

A cattle train left Montana and traveled toward Kansas City.  The train traveled 2940 km in 28 hours. How fast (speed) did the train go? 

• S=d-t
  S=2940-28
  S=2912 km/hr
• S=d÷t
  S=2940÷28
  S=105 km/hr

According to the graph, at which interval was the ball moving fastest? 

• 0 to 1 seconds
• 1 to 2 seconds

007 is chasing the man from SPECTRE along the top of a train traveling north at 55 mph.  The agents are running at 5 mph from the front of the train to the back.  What is the velocity of 007? 

• 55 mph N - 5 mph S=50 mph N
• 55 mph + 5 mph= 60 mph

A person drives north 3 blocks, then turns east and drives 3 blocks.  The driver then turns south and drives 3 blocks.  How could the driver have made the distance shorter while maintaining the same displacement? 

• a.  By driving north 1 block and east 4 blocks
• By driving east 3 blocks from the starting point 

While traveling along a highway a driver ‘slows down’ from 36 m/s to 15 m/s in 7 seconds.  What is the automobile’s acceleration? Use the formula, a=(V_final-V_initial) ÷ t

• a=(15 - 36) ÷ 7
  a= -21 ÷ 7
  a= -3 m/s/s
• a=(36 - 15) ÷ 7
  a= 21 ÷ 7
  a= 3 m/s/s

Find the acceleration of a northbound subway train that ‘slows down’ from 15 m/s to 10 m/s in 1.0 second. Use the formula, a=(V_final-V_initial) ÷ t

• a=(15 - 10) + 1
  a=5 + 1
  a= 6 m/s/s
• a=(10 - 15) ÷ 1
  a= -5 ÷ 1
  a= -5 m/s/s

A student parks their car and walks 3 blocks east to their first class, 2 blocks north to the next class, 1 block west to a third class, and finally 2 blocks south to their final class.  How far away (displacement) are they from the car? 

• 2 blocks East
• 8 blocks

Look at the graph.  What is the average speed during the 1 to 3 second interval? Use the formula, S= d ÷ t

• S= 60 ÷ 2
  S= 30 m/s
• S= 4 ÷ 2
  S= 20 m/s