Speed and Velocity

Front

What is speed?

Back

Speed is the distance traveled per unit of time, typically measured in meters per second (m/s) or kilometers per hour (km/hr).

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction, expressed in units like meters per second (m/s) with a directional component.

Front

What is the formula for calculating speed?

Back

Speed = distance / time.

Front

If a car travels 150 km in 3 hours, what is its speed?

Back

Speed = 150 km / 3 hr = 50 km/hr.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity (magnitude only), while velocity is a vector quantity (magnitude and direction).

Front

How do you calculate average velocity?

Back

Average velocity = total displacement / total time.

Front

If a runner completes a 400 m lap in 50 seconds, what is their speed?

Back

Speed = 400 m / 50 s = 8 m/s.

Front

What is instantaneous speed?

Back

Instantaneous speed is the speed of an object at a specific moment in time.

Front

What is the unit of speed in the International System of Units (SI)?

Back

The SI unit of speed is meters per second (m/s).

Front

If a cyclist travels 20 km north in 1 hour, what is their velocity?

Back

Velocity = 20 km north / 1 hr = 20 km/hr north.