Kinematics: Velocity, Acceleration, and Scalars

Front

What is Kinematics?

Back

Kinematics is the branch of physics that describes the motion of objects without considering the forces that cause the motion.

Front

Define Velocity.

Back

Velocity is the rate of change of displacement of an object, expressed as a vector quantity that includes both speed and direction.

Front

What is the unit of velocity in the SI system?

Back

The unit of velocity in the SI system is meters per second (m/s).

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 with respect to time, expressed as a vector quantity.

Front

What is the unit of acceleration in the SI system?

Back

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

Front

How do you calculate average velocity?

Back

Average velocity is calculated by dividing the total displacement by the total time taken.

Front

What does a velocity-time graph represent?

Back

A velocity-time graph represents the relationship between an object's velocity and the time elapsed during its motion.

Front

What does a horizontal line on a velocity-time graph indicate?

Back

A horizontal line on a velocity-time graph indicates that the object is moving at a constant velocity.

Front

What does a positive slope on a velocity-time graph indicate?

Back

A positive slope on a velocity-time graph indicates that the object is accelerating.