Physical Science - Motion - Speed, Velocity and Acceleration

Front

What is speed?

Back

Speed is the distance traveled per unit of time, regardless of direction. It is a scalar quantity.

Front

What is velocity?

Back

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

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity over time. It can occur due to changes in speed or direction.

Front

Why does a car accelerate when it goes around a corner?

Back

A car accelerates when going around a corner because its direction is changing, even if its speed remains constant.

Front

What is the difference between speed and velocity?

Back

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

Front

What is an example of constant speed?

Back

A car traveling at a steady 60 mph on a straight road is an example of constant speed.

Front

What is an example of changing velocity?

Back

A car speeding up from 30 mph to 60 mph or turning a corner while maintaining speed is an example of changing velocity.

Front

What does it mean if an object has a negative acceleration?

Back

Negative acceleration, or deceleration, means the object is slowing down.

Front

How can you determine if an object is in motion?

Back

An object is in motion if its position changes relative to a reference point over time.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.