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 at which an object's velocity changes over 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 does it mean if an object is at rest?

Back

An object is at rest if it is not changing its position relative to a reference point.

Front

What is deceleration?

Back

Deceleration is a decrease in the speed of an object, also known as negative acceleration.

Front

How do you calculate average speed?

Back

Average speed is calculated by dividing the total distance traveled by the total time taken.

Front

What is a reference point?

Back

A reference point is a stationary object used to determine the position of another object.

Front

If a car travels 150 km in 3 hours, what is its average speed?

Back

Average speed = Total distance / Total time = 150 km / 3 hr = 50 km/hr.

Front

What is constant speed?

Back

Constant speed means an object covers equal distances in equal intervals of time.