Displacement and Velocity Concepts

The video tutorial explains the concept of displacement as a vector quantity, requiring both magnitude and direction. It differentiates between distance and displacement, emphasizing that displacement must include direction. The tutorial introduces velocity as displacement per time, also a vector, and demonstrates calculations of speed and velocity using a bicycle race example.

What is the symbol used to represent displacement?

• Delta T

• Delta S

• Delta V

• Delta D

Which of the following is a vector quantity?

• Distance

• Speed

• Displacement

• Time

What additional information is needed to fully describe displacement?

• Time

• Magnitude and direction

• Magnitude only

• Direction only

How is velocity defined in physics?

• Acceleration per time

• Speed per time

• Displacement per time

• Distance per time

What is the SI unit for velocity?

• m/s

• km/h

• miles/hour

• feet/second

In the bicycle race example, what is the displacement?

• 22 miles to the east

• 22 miles

• 52 miles to the east

• 52 miles

If a cyclist travels 52 miles in 2 hours, what is their average speed?

• 26 miles/hour

• 22 miles/hour

• 11 miles/hour

• 52 miles/hour

What is the average velocity of the cyclist if they travel 22 miles east in 2 hours?

• 26 miles/hour east

• 52 miles/hour east

• 22 miles/hour east

• 11 miles/hour east

Why is direction important when discussing velocity?

• It affects the time taken

• It changes the magnitude

• It determines the speed

• It is needed to define velocity as a vector

What distinguishes velocity from speed?

• Velocity is measured in miles

• Velocity is always greater

• Velocity includes direction

• Velocity is a scalar