Speed, Velocity, Acceleration

Front

What is speed?

Back

Speed is the distance traveled per unit of time, measured in meters per second (m/s) or kilometers per hour (km/h).

Front

What is velocity?

Back

Velocity is the speed of an object in a particular 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 speed?

Back

Speed = Distance / 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 does it mean if an object is accelerating?

Back

An object is accelerating if it is changing its velocity, which can occur due to a change in speed or direction.

Front

What is uniform motion?

Back

Uniform motion occurs when an object moves at a constant speed in a straight line.

Front

What is the unit of acceleration?

Back

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

Front

How does changing direction affect velocity?

Back

Changing direction affects velocity because velocity includes direction; thus, even if speed remains constant, a change in direction results in a change in velocity.

Front

What is an example of negative acceleration?

Back

Negative acceleration, or deceleration, occurs when an object slows down, such as a car coming to a stop.