4.12.21 SDT

What are you solving for when a problem asks how fast an object is moving?

• Distance

• Time

• Speed

Tags

NGSS.MS-PS3-1

Motion is when an object changes __________ over time.

Calculate the average speed (in miles per hour) of Cassandra who runs a 18 mile marathon in 6 hours.

• 24 m/hr
• 3 m/hr
• 0.333 m/hr
• 12 m/hr

The unit for speed is:

• m/s
• s
• m
• km

Tags

NGSS.MS-PS3-1

A bat flies for 400 seconds, and has a distance of 100 meter. What is the speed of the bat?

• 0.25 m/s
• 4 m/s
• 400 m/s

A cross country racer runs at a speed of 550 m/s, with a time of 4 seconds. What is the distance that they ran?

• 2200 m
• 1375 m
• .5 m

If a bird flied a distance of 600m, and has a time of 60s. How fast did they run?

• 10 m/s
• 3600 m/s
• 0.1 m/s

Tags

NGSS.MS-PS3-1

What is the equation to calculate speed?

• speed = distance/time
• speed = time/distance
• speed = time x distance 
• speed = speed/time 

Tags

NGSS.MS-PS3-1

Mr. Rudman speed walked 2 miles in 10 minutes, what is his speed?

• 0.2 miles/min
• 2 miles/min
• 20 miles/min
• 40 miles/min

What is the equation to calculate time?

• time = speed/distance
• time = distance/speed 
• time = speed x distance 
• time = distance x speed