Position and Velocity

The distance-time graphs shown represent the motion of a car. Which of the following graphs represents the car at constant, positive velocity?

• graph A

• graph B

• graph C

• graph D

Between 9 to 12 seconds the person's average velocity has a negative value. Why? What does that mean? Check all that apply

• They were moving away from their original position

• they are moving to the left

• They are moving to the right

• They are moving back towards home

• They are going so fast that time is moving backwards!! Wow!!

Tags

NGSS.MS-PS3-1

At 60 seconds, how far had this object traveled? 

• 0 m

• 10 m

• 20 m

• 40 m

Tags

NGSS.MS-PS3-1

What is the definition of velocity?

• A force that opposes motion

• Uniform circular motion

• The speed of an object in a particular direction

Tags

NGSS.MS-PS3-1

Use the graph above and pick the most accurate description of the object's motion

• object is moving at constant speed

• object is speeding up

• object is at rest

• object is slowing down

Tags

NGSS.MS-PS3-1

Use the picture above to choose the most accurate description of the object's motion

• object is speeding up in the positive direction

• object is slowing down in the positive direction

• object is speeding up in the negative direction

• object is slowing down in the negative direction

Tags

NGSS.MS-PS2-2

What will the slope look like if the object were in a positive constant motion?

• 
• 
• 
• 

Answer explanation

If they were moving in a positive velocity, it would be moving up along the y axis.

Tags

NGSS.MS-PS3-1

Which slope would indicate the person/object were moving at the Fastest velocity?

• 
• 
• 
• 

Answer explanation

Which slope took THE LEAST TIME to go up the position axis?

Tags

NGSS.MS-PS3-1

Between which two points in time, is the person moving away from their original position?

• From A to B

• From B to C

• From C to D

• From D to E

Answer explanation

The person's position is increasing in positive magnitude as time passes.

Tags

NGSS.MS-PS3-1

From 9 to 12 seconds the average velocity of the person was ...

• m/s

• -1 m/s

• 3 m/s

• -3 m/s

Answer explanation

xf-xi= (-8)-(-5)=-3m,

tf-ti= (12-9) = 3sec

so -3/3 = -1 m/s

Tags

NGSS.MS-PS3-1