Speed, Velocity and Acceleration 2023

Front

What is the definition of speed?

Back

Speed is a scalar quantity that refers to how fast an object is moving, measured as the distance traveled per unit of time.

Front

What is the definition of velocity?

Back

Velocity is a vector quantity that refers to the speed of an object in a specific direction.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time.

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 unit is commonly used to measure speed?

Back

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

Front

If an object is moving at a constant speed, what can be said about its acceleration?

Back

If an object is moving at a constant speed, its acceleration is zero.

Front

What does it mean to accelerate?

Back

To accelerate means to increase or decrease the speed of an object or change its direction.

Front

Can an object have a high speed but low velocity?

Back

Yes, if an object is moving in a circular path, it can have a high speed but its velocity can be low due to the change in direction.

Front

What is the relationship between speed, distance, and time?

Back

The relationship is defined by the formula: Speed = Distance / Time.