Speed, Velocity, & Acceleration

Front

What is Speed?

Back

Speed is the distance traveled per unit of time, typically measured in kilometers per hour (km/h) or miles per hour (mph).

Front

What is Velocity?

Back

Velocity is the speed of an object in a specific direction. It is a vector quantity, meaning it has both magnitude and direction.

Front

What is Acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can be positive (speeding up) or negative (slowing down).

Front

How do you calculate Speed?

Back

Speed = Distance / Time.

Front

If a car travels 120 km in 2 hours, what is its speed?

Back

Speed = 120 km / 2 hours = 60 km/h.

Front

What is the difference between Speed and Velocity?

Back

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

Front

What happens to the velocity of an object when it accelerates?

Back

The velocity of an object increases or decreases depending on the direction of the acceleration.

Front

If a train moves 90 km to the east in 1 hour, what is its velocity?

Back

Velocity = 90 km east / 1 hour = 90 km/h east.

Front

What is an example of negative acceleration?

Back

A car slowing down as it approaches a stop sign is an example of negative acceleration.

Front

What is uniform acceleration?

Back

Uniform acceleration occurs when an object's velocity changes at a constant rate.