Speed, Velocity, Acceleration

Front

What is speed?

Back

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

Front

What is velocity?

Back

Velocity is speed in a specific direction, such as 40 m/s north.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity over time, indicating how quickly an object is speeding up or slowing down.

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 is a scalar quantity?

Back

A scalar quantity has only magnitude (size) and no direction, such as speed or distance.

Front

What is a vector quantity?

Back

A vector quantity has both magnitude and direction, such as velocity or acceleration.

Front

If a car travels 60 km in 1 hour, what is its speed?

Back

The speed is 60 km/h.

Front

If a car travels 80 km north in 2 hours, what is its velocity?

Back

The velocity is 40 km/h north.

Front

What happens to the velocity of an object when it changes direction?

Back

The object is said to be accelerating, even if its speed remains constant.

Front

What is the formula for calculating acceleration?

Back

Acceleration = (Final Velocity - Initial Velocity) / Time.