Kinematics Lecture Notes

A set of 50 practice flashcards covering the key concepts, formulas, and graph analysis techniques for Kinematics based on Mr Chng Hong Tatt's lecture.

Who is the instructor for the Kinematics lecture?

Mr Chng Hong Tatt

According to the file checks, what should students avoid doing with graphs?

Drawing or sketching them using a pen

Why must units be written on calculations?

Because numbers alone have no meaning

What information does the gradient of a distance–time graph provide?

The speed of the object

How many possible scenarios are described for a car travelling along a straight line in one direction on a distance-time graph?

Four possible scenarios

What is the motion of the car in Scenario 1 of a distance–time graph?

Car at rest

What is the motion of the car in Scenario 2 of a distance–time graph?

Car travelling at a uniform speed

How is a car travelling with increasing speed (non-uniform speed) represented on a distance–time graph?

By a concave curve as the gradient increases

How is a car travelling with decreasing speed (non-uniform speed) represented on a distance–time graph?

By a convex curve as the gradient decreases

What do speed–time graphs show regarding the motion of a car?

Uniform and non-uniform acceleration

What information does the gradient of a speed–time graph provide?

The acceleration of the object

In Scenario 2 of a speed–time graph, what is the motion of the car?

Car travelling at a uniform constant speed of $10\,m/s$

Describe Scenario 3 of a speed–time graph.

Car travelling with uniform acceleration

Describe Scenario 4 of a speed–time graph.

Car travelling with uniform deceleration

What does Scenario 5 of a speed–time graph represent?

Car travelling with increasing acceleration (non-uniform acceleration)

What does Scenario 6 of a speed–time graph represent?

Car travelling with decreasing acceleration (non-uniform acceleration)

In the comparison on Page 11, what is the motion from A to B?

Car accelerates uniformly from rest

In the comparison on Page 11, what is the motion from B to C?

Car moves at constant speed in one direction

In the comparison on Page 11, what is the motion from C to D?

Car decelerates uniformly to a stop

On a distance-time graph, what does a straight line with a positive constant gradient represent?

Distance increases uniformly over time (constant speed)

On a speed-time graph, what does a straight line with a positive constant gradient represent?

Speed increases uniformly over time (uniform acceleration)

How is constant speed represented on a speed–time graph?

By a horizontal line

How is uniform deceleration represented on a speed–time graph?

By a straight line with a negative constant gradient

What can be determined by calculating the area under a speed–time graph?

The distance of the object

What are the three main terms used to describe kinematics?

Speed, Velocity, and Acceleration

Is speed a scalar or vector quantity?

Scalar

Is velocity a scalar or vector quantity?

Vector

Is acceleration a scalar or vector quantity?

Vector

What are the SI units provided for distance and displacement?

$m$ (meters)

Is displacement a scalar or vector quantity?

Vector

Is distance a scalar or vector quantity?

Scalar

What is the formula for Speed?

$$\text{Speed} = \frac{\text{distance}}{\text{time taken}}$"},{