Distance Speed Time Acceleration

A runner crossed the 1 mile marker of a race running at a speed of 9 miles per hour. She crossed the finish line running at a speed of 9.8 miles per hour. Did the runner change her velocity?

• Yes

• No

Tags

NGSS.MS-PS3-5

A runner crossed the 1 mile marker of a race running at a speed of 9 miles per hour. She crossed the finish line running at a speed of 9.8 miles per hour. This is an example of...

• positive acceleration

• negative acceleration

• no acceleration

A snake slithered across the sidewalk in between two sign posts. At the first sign post his speed was 1.2 m/s. At the second sign post his speed was 1.2 m/s. This is an example of...

• positive acceleration

• negative acceleration

• no acceleration

_________ is the change in speed over time.

• Distance

• Speed

• Velocity

• Acceleration

How do you calculate time?

• multiply distance and speed

• distance divided by speed

• speed divided time

• divide distance and density then multiply by volume

How do you calculate speed?

• multiply distance and speed

• distance divided by time

• speed divided by time

• divide distance and density then multiply by volume

Tags

NGSS.MS-PS3-1

Michael walked at 2 m/s for 3 minutes. How far did he walk?

• 360 m

• 6 m

• 18 m

• 5 m

When was the object sitting still?

• between 5 and 6 seconds

• between 2 and 5 seconds

• between 1 and 2 seconds

• between 0 and 1 second

At what point is the object moving back to the starting point?

_________ is the how far an object travels over time.

Tags

NGSS.MS-PS3-1