motion in one and two dimensions - part1

This is a velocity-time graph.  What is the object doing in segment C?

• Positive acceleration
• Negative acceleration
• Constant Velocity
• Not moving

This is a velocity-time graph.  What is the object doing in segment B?

• Positive acceleration
• Negative acceleration
• Constant Velocity
• Not moving

Describe the motion

• Speeding up;    Moving in negative direction
• Speeding up;   Moving in positive direction
• Slowing down;   Moving in positive direction
• Slowing down;   Moving in negative direction

Describe the motion

• Speeding up;    Moving in negative direction
• Speeding up;   Moving in positive direction
• Slowing down;   Moving in positive direction
• Slowing down;   Moving in negative direction

Motion sensors recorded the following data about a runner during a cross-country race. During which segment of the race did the runner have the greatest speed?

• W
• X
• Y
• Z

Tags

NGSS.MS-PS3-1

Which graph represents zero acceleration (constant velocity)?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

The picture of the position vs. time graph shows an object that is...

• accelerating/speeding up
• moving at a constant speed 
• not moving 
• accelerating/slowing down. 

Tags

NGSS.MS-PS3-1

Describe the motion in segment C

• Slowing down;  Positive direction
• Slowing down;  Negative direction
• Speeding up;  Negative direction
• Constant velocity;  Negative direction

Tags

NGSS.MS-PS3-1

A car is traveling at 21.0 m/s. It slows to a stop at a constant rate over 5.00 s. How far does the car travel during those 5.00 seconds before it stops? 

• 4.20 m
• 52.5 m
• 105 m
• 158 m

Tags

NGSS.MS-PS2-2

What is the SI unit for speed and velocity?

• Km
• s
• m/s
• m/s²