Displacement, Speed, and Velocity

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

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

Tags

NGSS.MS-PS3-1

Which of the following is a unit of time?

• sec
• mi
• m/s
• km

Reese can run 10 meters in 5 seconds. What is her speed?

• 5 meters/sec
• 2 meters/sec
• 5 miles/hour
• 2 miles/hour

Tags

NGSS.MS-PS3-1

In order to find the Time, you must

• divide the distance by the speed (distance/speed)

• multiply the distance by the speed (distance/speed)

• Neither of the Above

Based on the UNITS given, which of the following would be a correct answer for finding the SPEED.

• S = 4 miles

• S = 4 minutes

• S = 4 min/miles

• S = 4 miles/min

Tags

NGSS.MS-PS3-1

Calculate these 3 car's speeds, then rank them in order of fastest to slowest, with 3 being the fastest car and 1 the slowest car.
Car A- distance: 4 meters, time: 2 sec
Car B- distance: 2 meters, time: 2 sec
Car C- distance: 8 meters, time: 2 sec

• Car A= 1
  Car B= 2
  Car C = 3
• Car A = 2
  Car B= 1
  Car C= 3
• Car A= 3
  Car B= 1
  Car C = 2
• Car A = 3
  Car B= 2
  Car C= 1

Tags

NGSS.MS-PS3-1

Reese rides her bike 10 miles in 5 hours.
Avery rides her bike 15 miles in 5 hours. Which girl rides her bike faster?

• Reese
• Avery 

How would decreasing the time it takes you to run a certain distance affect your speed? Speed will...

• Increase
• Decrease

A train travels 25 km in .5 hrs. How fast is the train going?

• 25 miles/hr
• 5 miles/hr
• 125 km/hr
• 50 km/hr