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

Which of the following is a unit of speed ?

• sec
• mi
• m/s
• min

Which of the following is a unit of distance ?

• miles/hr
• mi
• s
• min

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 

Motion is

• a word that rhymes with ocean.

• an object's change in its speed to a reference point.

• an object's change in position to a reference point.

• an object's change in position to its rate of speed.

Velocity is speed with __________________________.

• a unicycle helmet

• direction

• fight

The clown walked 27 feet in 9 seconds. what was his velocity?

• 18 feet/sec

• 243 feet/sec

• 36 feet/sec

• 3 feet/sec

Tags

NGSS.MS-PS3-1