Motion in One Direction: Description of Speed

The video tutorial explains the basic factors necessary for describing motion and speed, focusing on distance and time. It provides two examples comparing the speeds of two cars, a yellow car and a blue car, under different conditions. The first example shows the yellow car is faster because it takes less time to cover the same distance. The second example demonstrates the yellow car's speed by covering a longer distance in the same time. The tutorial concludes by emphasizing the importance of distance and time in determining speed.

What are the two basic factors necessary for describing motion and speed?

• Distance and time

• Speed and direction

• Time and velocity

• Distance and acceleration

In the first example, why is the yellow car considered faster than the blue car?

• It has a better engine

• It has a higher acceleration

• It takes less time to cover the same distance

• It covers a longer distance

In the second example, what makes the yellow car faster than the blue car?

• It is lighter in weight

• It has a higher top speed

• It uses less fuel

• It covers a longer distance in the same time

What can be concluded about speed from the examples given?

• Speed depends on both distance covered and time taken

• Speed is only about how fast you start

• Speed is irrelevant in motion

• Speed is determined by the type of vehicle

Which factor is NOT necessary for describing speed?

• Distance covered

• Motion path

• Time taken

• Color of the vehicle