What are the units for speed?

• m/s²

• m/s

• m

• s

Tags

NGSS.MS-PS3-1

What is the formula for velocity?

• v = d/t + direction

• v = direction

• v = t/d + direction

• v = d x t + direction

What measures how quickly or slowly an object changes position?

• motion

• reference point

• speed

• velocity

Tags

NGSS.MS-PS3-1

What could be used as a reference point in this picture to show a car is in motion?

• The starting line

• The trees

• Another car

• All of the examples could be reference points

Which of the following answers shows velocity?

• 5 meters

• 23 m/s north

• 18 m/s

• 3 seconds

Solve: Betty drove 44 meters in 11 seconds. How fast was she going?

• 4 m/s²

• 4 mi/hr

• 55 m/s

• 4 m/s

On a velocity time graph, what does a falling line represent?

• negative acceleration

• positive acceleration

• constant acceleration

• no acceleration

What does the flat line represent?

• constant speed

• no motion, or that the object has stopped

• increasing speed

• slowing down

Tags

NGSS.MS-PS3-1

Solve: Terry slid down a hill for 5 seconds and ended with a velocity of 20 m/s.  What was his acceleration?

• 4 m/s

• 25 m/s2

• 4 m/s2

• 25 m/s

Tags

NGSS.HS-PS2-1

Solve: If distance is 100 miles and time is 4 hours, what would be the speed?

• 25 mph

• 25 m/s

• 25 mi/s

• 104 mph