Motion, Velocity, and Acceleration

The SI unit for acceleration is:  

• m/s²
• m/s
• km/h
• ft/s

Which of the following is a speed?  

• The time at which a bicycle accelerates. 
• The length of a racetrack
• The path of an elevator
• The rate at which a person slides down a rope.  

From which time interval the object is moving at constant acceleration?  

• 0 sec 
• 0 to 20 sec 
• 20 to 40 sec 
• 20 to 60 sec 

Tags

CCSS.8.EE.B.5

From which time interval the object has a constant speed?  

• 0 to 20 sec 
• 20 to 40 sec 
• 20 to 60 sec 
• 40 to 60 sec 

What is the average acceleration of the object in the graph in the first 20 sec?  

• 2 m/s²
• 20 m/s²
• 40 m/s²
• 80 m/s²

Which line has the slowest speed based on the graph below?  

• blue 
• red
• green 
• none 

Tags

CCSS.8.EE.B.5

What is the speed of the red line?  

• 4 m/s 
• 16 m/s 
• 32 m/s 
• 2 m/s 

Tags

CCSS.8.EE.B.5

Which graph in the figure shown aside describes a motion of an object that is slowing down?  

• A
• B
• C
• none 

Tags

CCSS.HSF.IF.B.4

Which line in the figure shows that the object is at rest?  

• A
• B
• C
• none

Tags

CCSS.8.EE.B.5

What is the average velocity of the object in the first two seconds?  

• 2 m/s 
• 20 m/s 
• 10 m/s 
• 40 m/s