1D KINEMATICS REVIEW

Front

What is 1D Kinematics?

Back

1D Kinematics is the branch of physics that deals with the motion of objects along a straight line, focusing on concepts such as displacement, velocity, acceleration, and time.

Front

Define displacement.

Back

Displacement is the vector quantity that represents the change in position of an object. It is the shortest distance from the initial to the final position, along with the direction.

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 the speed and direction of the object's motion.

Front

What is acceleration?

Back

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

Front

What happens to an object's velocity and acceleration during free fall?

Back

In free fall, an object's velocity increases while its acceleration remains constant at approximately 9.81 m/s² downward due to gravity.

Front

How do you calculate average velocity?

Back

Average velocity is calculated by dividing the total displacement by the total time taken: Average Velocity = Total Displacement / Total Time.

Front

What is a position-time (PT) graph?

Back

A position-time graph is a visual representation of an object's position as a function of time, showing how the position changes over time.

Front

What does a horizontal line on a PT graph indicate?

Back

A horizontal line on a PT graph indicates that the object is at rest, as there is no change in position over time.

Front

How can you determine the speed from a PT graph?

Back

The speed of an object can be determined from a PT graph by calculating the slope of the line; a steeper slope indicates a higher speed.

Front

What does a negative slope on a PT graph represent?

Back

A negative slope on a PT graph indicates that the object is moving backward, as the position is decreasing over time.