8.6B Speed, Velocity, Acceleration

Front

What is the definition of velocity?

Back

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

Front

What is the definition of acceleration?

Back

Acceleration is the rate of change of velocity over time.

Front

How can you distinguish between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What does it mean when an object is accelerating?

Back

An object is accelerating if it is changing its speed or direction.

Front

What is the formula for calculating acceleration?

Back

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

Front

What is an example of constant speed?

Back

A person walking at a steady pace of 5 km/h without changing speed.

Front

What is an example of acceleration?

Back

A car speeding up from 30 km/h to 60 km/h.

Front

What happens to velocity when an object changes direction?

Back

The velocity of the object changes because velocity includes direction.

Front

What is the difference between positive and negative acceleration?

Back

Positive acceleration means an increase in speed, while negative acceleration (deceleration) means a decrease in speed.

Front

How does adding direction convert speed to velocity?

Back

By specifying a direction, you transform the scalar speed into a vector quantity, which is velocity.