Speed, Velocity and Acceleration

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time

Front

How is velocity different from speed?

Back

Velocity is speed with a direction; speed is a scalar quantity.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity over time.

Front

How do you calculate acceleration?

Back

Acceleration = (Final Velocity - Initial Velocity) / Time

Front

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

Back

Average Speed = 100 miles / 2 hours = 50 miles/hour

Front

What is the unit of speed in the metric system?

Back

Meters per second (m/s) or kilometers per hour (km/h)

Front

What is the difference between uniform and non-uniform acceleration?

Back

Uniform acceleration is constant; non-uniform acceleration changes over time.

Front

If a runner completes a 5 km race in 25 minutes, what is their average speed in km/h?

Back

Average Speed = 5 km / (25/60) hours = 12 km/h

Front

What is the significance of a negative acceleration?

Back

Negative acceleration indicates a decrease in velocity, also known as deceleration.

Front

How do you convert speed from km/h to m/s?

Back

To convert km/h to m/s, divide by 3.6.