Physical Science - Motion - Speed, Velocity and Acceleration

Front

What is speed?

Back

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

Front

What is velocity?

Back

Velocity is the speed of an object in a specific direction, combining both magnitude and direction.

Front

What is acceleration?

Back

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

Front

How do speed and velocity differ?

Back

Speed is a scalar quantity (only magnitude), while velocity is a vector quantity (magnitude and direction).

Front

What does a constant slope on a position vs time graph indicate?

Back

A constant slope indicates that the object is moving at a constant speed.

Front

What does an increasing slope on a position vs time graph indicate?

Back

An increasing slope indicates that the object is accelerating.

Front

What does a decreasing slope on a position vs time graph indicate?

Back

A decreasing slope indicates that the object is decelerating.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.

Front

If Shona cycles at an average speed of 8 km/h for 4 hours, how far does she travel?

Back

32 km.

Front

What is the significance of direction in velocity?

Back

Direction is crucial in velocity as it determines the object's path and can change even if speed remains constant.