Differentiating Speed and Velocity

What does a speedometer measure?

• Velocity

• Distance

• Time

• Speed

Tags

NGSS.MS-PS3-1

How is average speed calculated?

• By subtracting initial speed from final speed

• By averaging all instantaneous speeds

• By dividing total distance by total time

• By multiplying distance and time

What is the main difference between speed and velocity?

• Velocity includes direction, speed does not

• There is no difference

• Speed includes direction, velocity does not

• Speed is a vector, velocity is a scalar

What does the 'd' represent in the average velocity equation?

• Distance

• Displacement

• Duration

• Direction

If a car travels 20 meters to the right in 2 seconds, what is its velocity?

• 10 meters per second to the right

• 20 meters per second

• 10 meters per second

• 20 meters per second to the right

Tags

NGSS.MS-PS3-1

Why does person B have an average velocity of zero in the example given?

• Because they walked faster

• Because they walked in a straight line

• Because they returned to their starting point

• Because they walked slower

In a back-and-forth motion problem, what is the first step to solve for average speed and velocity?

• Measure the speed

• Draw a diagram

• Calculate the total time

• Find the initial position

How do you calculate the total distance traveled in a multi-leg trip?

• By multiplying the total time by the speed

• By subtracting the final position from the initial position

• By averaging the speeds

• By adding all the individual distances

What is the average speed if a person travels 100 yards in 100 seconds?

• 2.0 yards per second

• 1.5 yards per second

• 1.0 yards per second

• 0.5 yards per second

Where can you find additional resources to understand distance and displacement?

• Physics Classroom website

• YouTube

• Google

• Library