Speed, Velocity, Acceleration

Front

What is the definition of velocity?

Back

The speed of an object in a particular direction.

Front

What do we call changes in speed, direction, or both?

Back

Acceleration.

Front

Which of the following is a unit of speed?

Back

km/hr.

Front

True or False: Changing the speed and changing the direction of your bicycle are both examples of acceleration.

Back

TRUE.

Front

What is the formula for speed?

Back

Speed = Distance / 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 refers to the speed of an object in a specific direction.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object.

Front

What are the units of acceleration?

Back

Meters per second squared (m/s²).

Front

If an object is moving in a circle at a constant speed, is it accelerating?

Back

Yes, because its direction is changing.

Front

What is the relationship between acceleration and force?

Back

According to Newton's second law, acceleration is directly proportional to the net force acting on an object and inversely proportional to its mass (F = ma).