A.1 - 4 - average vs instantaneous velocity

How is average velocity defined?

• The speed or velocity at one specific instant in time.

• The total distance or displacement divided by the total time traveled.

• The change in position over the change in time.

• The slope of a position-time graph at a specific point.

What does instantaneous velocity represent?

• The total distance covered during a trip.

• The overall speed of an object over a long period.

• The speed or velocity of an object at one specific moment in time.

• The displacement of an object divided by the total time.

A car travels a total distance of 65 km in 1 hour. What is its average speed?

• 1 km/h

• 65 km/h

• 0 km/h

• 80 km/h

Why might a car's instantaneous speed differ from its average speed during a trip?

• Instantaneous speed is always constant, while average speed varies.

• Average speed only considers the starting and ending points, not the path taken.

• A car might stop, speed up, or slow down at various points during the trip.

• Instantaneous speed is calculated using total distance, while average speed uses total displacement.

On a position-time graph, how is instantaneous speed determined?

• By calculating the total distance traveled divided by the total time.

• By drawing a line connecting two points and finding its slope.

• By finding the slope of the graph at that exact point.

• By dividing the position value by the time value at that point.