Speed, Velocity, Acceleration

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It occurs when an object speeds up, slows down, or changes direction.

Front

What is speed?

Back

Speed is the distance traveled per unit of time. It is a scalar quantity and does not include direction.

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction. It is a vector quantity.

Front

How do you calculate speed?

Back

Speed = Distance / Time.

Front

What is the unit of speed?

Back

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

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 happens to acceleration when an object speeds up?

Back

When an object speeds up, its acceleration is positive.

Front

What happens to acceleration when an object slows down?

Back

When an object slows down, its acceleration is negative, often referred to as deceleration.

Front

If a car goes from 20 m/s to 60 m/s in 5 seconds, what is its acceleration?

Back

Acceleration = (Final Velocity - Initial Velocity) / Time = (60 m/s - 20 m/s) / 5 s = 8 m/s².

Front

What is a common example of acceleration in daily life?

Back

A common example is a car accelerating from a stoplight.