1D KINEMATICS REVIEW

Front

What is 1D Kinematics?

Back

1D Kinematics is the branch of mechanics 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 distance and displacement?

Back

Distance is a scalar quantity that measures the total path length traveled by an object, while displacement is a vector quantity that measures the shortest straight-line distance from the initial to the final position.

Front

What is velocity?

Back

Velocity is the rate of change of displacement with respect to time. It is a vector quantity that includes both speed and direction.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity with respect to time. It can be positive (speeding up) or negative (slowing down) and is also a vector quantity.

Front

What happens to an object's velocity and acceleration in 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 graphical representation that shows how the position of an object changes over time. The slope of the graph indicates the object's velocity.

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, meaning its position does not change over time.

Front

What does a straight diagonal line on a PT graph indicate?

Back

A straight diagonal line on a PT graph indicates that the object is moving at a constant speed in a straight line.