Speed, Velocity, and Acceleration

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time

Tags

NGSS.MS-PS3-1

Front

What are the units commonly used to measure speed?

Back

Kilometers per hour (km/h) and miles per hour (mph) are common units.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

How do you calculate average speed?

Back

Average Speed = Total Distance / Total Time

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity per unit of time.

Tags

NGSS.MS-PS2-2

Front

What are the units of acceleration?

Back

Common units of acceleration include meters per second squared (m/s²) and kilometers per hour per hour (km/h²).

Front

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

Back

Average speed = 100 km / 2 h = 50 km/h.

Front

What is the formula for calculating acceleration?

Back

Acceleration = (Final Velocity - Initial Velocity) / Time

Front

If a cyclist increases their speed from 5 km/h to 15 km/h in 5 seconds, what is their acceleration?

Back

Acceleration = (15 km/h - 5 km/h) / 5 s = 2 km/h/s.

Front

What does a negative acceleration indicate?

Back

Negative acceleration indicates that an object is slowing down.