Speed, Velocity, and Acceleration Flashcard

Front

What is average speed?

Back

Average speed is the total distance traveled divided by the total time taken. It is measured in units such as meters per hour (m/h) or kilometers per hour (km/h).

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 formula for acceleration?

Back

Acceleration = (Final velocity - Initial velocity) / Time.

Front

What is a scalar quantity?

Back

A scalar quantity is a physical quantity that has only magnitude and no direction, such as speed or distance.

Front

What is a vector quantity?

Back

A vector quantity is a physical quantity that has both magnitude and direction, such as velocity or acceleration.

Front

What happens to the velocity of an object when it turns a corner at constant speed?

Back

The velocity changes because the direction of the object changes, even though the speed remains constant.

Front

What is the unit of speed in the metric system?

Back

The unit of speed in the metric system is meters per second (m/s) or kilometers per hour (km/h).

Front

What is the fastest speed among the following: 20 miles per hour, 30 miles, 15 kilometers per hour, 15 miles per minute?

Back

15 miles per minute is the fastest speed.