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). It is a scalar quantity.

Front

What is velocity?

Back

Velocity is the displacement per unit of time, which includes both speed and direction. It is a vector quantity.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity per unit of time. It can be positive (speeding up) or negative (slowing down) and is measured in meters per second squared (m/s²).

Front

Calculate the speed: A car travels 150 km in 2 hours.

Back

Speed = Distance / Time = 150 km / 2 h = 75 km/h.

Front

Calculate the velocity: A cyclist travels 100 m east in 5 seconds.

Back

Velocity = Displacement / Time = 100 m east / 5 s = 20 m/s east.

Front

Calculate the acceleration: A car speeds up from 20 m/s to 50 m/s in 10 seconds.

Back

Acceleration = (Final Velocity - Initial Velocity) / Time = (50 m/s - 20 m/s) / 10 s = 3 m/s².

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that only considers magnitude, while velocity is a vector quantity that considers both magnitude and direction.

Front

What is uniform motion?

Back

Uniform motion occurs when an object travels equal distances in equal intervals of time, resulting in constant speed.

Front

What is non-uniform motion?

Back

Non-uniform motion occurs when an object travels unequal distances in equal intervals of time, resulting in changing speed or direction.

Front

What is the formula for calculating average speed?

Back

Average Speed = Total Distance / Total Time.