Speed, Velocity, and Acceleration Notes Flashcard

Front

What is average speed?

Back

Average speed is the total distance traveled divided by the total time taken. It is a scalar quantity.

Front

How do you calculate average speed?

Back

Average speed = Total distance / Total time.

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

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It can be positive (speeding up) or negative (slowing down).

Front

What is the SI unit of speed?

Back

The SI unit of speed is meters per second (m/s).

Front

What is the SI unit of acceleration?

Back

The SI unit of acceleration is meters per second squared (m/s²).

Front

What does a speedometer measure?

Back

A speedometer measures the speed of a vehicle, not its velocity.

Front

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

Back

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

Front

What are the units for measuring velocity?

Back

The units for measuring velocity are typically meters per second (m/s).

Front

Is velocity a scalar or vector quantity?

Back

Velocity is a vector quantity because it has both magnitude and direction.