Speed Velocity and Acceleration

Front

What is the definition of 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 the definition of velocity?

Back

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

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity per unit of time, measured in meters per second squared (m/s²).

Front

What is the formula for calculating acceleration?

Back

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

Front

If a car travels 100 km in 2 hours, what is its speed?

Back

Speed = Distance / Time = 100 km / 2 h = 50 km/h.

Front

What does a positive slope on a speed-time graph indicate?

Back

A positive slope indicates that the object is accelerating.

Front

What does a negative slope on a speed-time graph indicate?

Back

A negative slope indicates that the object is decelerating (slowing down).

Front

How do you calculate the distance traveled if you know speed and time?

Back

Distance = Speed x 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 is uniform acceleration?

Back

Uniform acceleration occurs when an object's acceleration is constant over time.