calculating average speed

What is the formula to calculate speed?

• S = t/d
• S = d/t
• S = d x t
• S = t x d

Tags

NGSS.MS-PS3-1

What is speed?

• how far you go
• how much distance is covered over a period of time
• how fast you accelerate
• the change in the location of a object

Tags

NGSS.MS-PS3-1

A runner races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?

• 10 m/s
• 1000 m/s
• 100 seconds
• 10 seconds

Total distance divided by total time is

• average speed
• constant speed
• instantaneous speed
• acceleration

Alan travels 100 km in 5hrs. Find his average speed in km/h

• 5km/hr
• 10km/hr
• 50km/hr
• 20km/hr

Find speed when distance is 142 km and time is 2 hours.

• 71km/hr
• 52km/hr
• 17km/hr
• 90km/hr

What is the speed of an object that travels 60 meters in 4 seconds?

• 240 m/s
• 15 m/s
• 0.067 m/s
• 15 mph

Tags

NGSS.MS-PS3-1

What two measurements are necessary for calculating speed?

• Mass and time
• Temperature and mass
• Mass and distance
• Distance and time

A worm traveled 3 miles in 30 minutes.  What is the average speed of the worm in miles per hour?

• 10 mi/h

• 6 mi/h

• 33 mi/h

• 3 mi/h

Which of the following is a unit of speed?

• km/h

• h

• km
• s