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/h).

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

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

What units are commonly used to measure speed?

Back

Common units include meters per second (m/s) and kilometers per hour (km/h).

Front

How do you calculate the time taken to travel a distance at a constant speed?

Back

Time = Distance / Speed.

Front

If a car travels 150 km in 2 hours, what is its average speed?

Back

Average speed = 150 km / 2 hours = 75 km/h.

Front

What is the significance of direction in velocity?

Back

Direction indicates where the object is moving, which is essential for understanding motion in physics.

Front

What is a scalar quantity?

Back

A scalar quantity has only magnitude (size) and no direction, e.g., speed.

Front

What is a vector quantity?

Back

A vector quantity has both magnitude and direction, e.g., velocity.