Velocity

The video tutorial explains the concepts of speed and velocity, highlighting the importance of direction in defining velocity. It introduces the International System of Units (SI) for measuring distance and provides examples to calculate speed and velocity. The tutorial also illustrates how objects can have the same speed but different velocities due to varying directions, using real-world examples like cars and planes.

What is the main difference between speed and velocity?

• Velocity is always greater than speed.

• Velocity includes direction, while speed does not.

• Speed includes direction, while velocity does not.

• Speed is measured in meters, while velocity is not.

Which unit is not part of the International System of Units for measuring distance?

• Meter

• Kilometer

• Inch

• Centimeter

How do you calculate speed?

• Subtract time from distance

• Multiply distance by time

• Add distance and time

• Divide distance by time

If a plane travels 800 kilometers per hour north, what is its velocity?

• 800 kilometers per hour east

• 800 kilometers per hour

• 800 kilometers per hour north

• 800 kilometers per hour south

Why can two objects have the same speed but different velocities?

• They have different shapes.

• They have different masses.

• They travel in different directions.

• They start at different times.