What does a flat horizontal line mean on a position vs time graph?

• moving fast

• object in motionless

• gettin faster

• coming back to start

Tags

NGSS.MS-PS3-1

Which of the following accurately contrasts velocity and speed?

• speed is distance traveled in a certain amount of time. Velocity is time traveled in a certain distance

• speed is distance traveled in a certain time. Velocity is speed in a specific direction

• Velocity is distance traveled in a certain time. Speed is velocity in a certain direction

• velocity is distance traveled in a certain time. Soeed is how fast you're going

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.HS-PS2-1

Acceleration is defined as the CHANGE in

• time it takes for one place to move to another place.

• velocity of an object.

• distance divided by the time

• velocity divided by the time

Tags

NGSS.HS-PS2-1

Why does a car accelerate as it round a corner at a constant speed?

• Its direction changes
• It doesn't
• It slows down
• Its speeds up  

Tags

NGSS.MS-PS2-2

Determine the motion of the car.

• at rest 
• moving at constant speed
• speeding up
• slowing down

Which section of the graph shows decreasing velocity?

• CD
• DE
• EF
• GH

Tags

NGSS.MS-PS3-1

A dog runs with an initial speed of 7.5 m/s on a waxed floor.  It slides to a stop in 15 seconds.  What is the acceleration?

• -7.5 m/s
• -7.5 m/s²
• -0.5 m/s²
• 7.5 mi//hr

Tags

NGSS.MS-PS2-2

Where is Cart 1 in relation to Cart 2 when they begin their motion?

• Cart 1 is three meters ahead of Cart 2

• Cart 1 and 2 are at the same position to start

• Cart 1 is three meters behind Cart 2

What is the distance the mouse travelled? What is the mouse's displacement?

• 7 m; -1 m

• -1 m; 7 m

• 8 m; 0 m

• 0 m; -1 m