Force and Motion Archives - Page 4 of 5

Applications of the Concept of Inertia

March 30, 2020February 18, 2013 by

When the handle of the hammer hit on the surface, the handle stop but the head of the hammer keep on moving downward, owing to the effect of inertia. As a result, hammer head will fit tighter into the hammer. Japanese sumo wrestlers normally have great body mass. This is because the greater mass can … Read more

Mass and Inertia

March 30, 2020February 17, 2013 by

Mass Mass is defined as the amount of matter. The SI unit of mass is kilogram (kg) Mass is a scalar quantity. Inertia Inertia is the property of a body that tends to maintain its state of motion. Newton’s First Law In the absence of external forces, an object at rest remains at rest and … Read more

Graph of Free Falling

March 30, 2020February 16, 2013 by

Free falling is a motion under gravitational force as the only force acting on the moving object. The acceleration of a free falling object is always constant. On the surface of the earth, the acceleration of is equal to 10ms-2, and is named as gravitational acceleration. In SPM, you need to know the graphs of … Read more

Velocity – Time Graph

March 30, 2020February 15, 2013 by

Velocity – Time Graph The gradient of the velocity-time gradient gives a value of the changing rate in velocity, which is the acceleration of the object. The area below the velocity-time graph gives a value of the object’s displacement. Analysing Velocity-Time Graph When analysing the velocity-time graph, always keep in mind that the gradient of … Read more

Displacement -Time Graph

January 10, 2021February 14, 2013 by

Displacement – Time GraphIn a Displacement-Time Graph, the gradient of the graph is equal to the velocity of motion. Analysing Displacement – Time Graph When analysing the displacement-time graph, always remember that the gradient of the graph represents the velocity of the graph. Therefore, if the gradient of the graph is positive, the velocity is … Read more

Graph of Motion

March 30, 2020February 12, 2013 by

There are 3 types of motion graph, namely the displacement-time graph the velocity-time graph the acceleration-time graph. When analysing a graph, it’s important for us to know what’s the physical quantity that’s represented by the gradient of the graph and the area below the graph. For example, in a displacement-time graph, the gradient represent the … Read more

Finding Acceleration from Ticker Tape

January 10, 2021February 11, 2013 by

Finding Acceleration Acceleration of motion can be determined by using ticker tape through the following equation:Caution!:t is the time taken from the initial velocity to the final velocity. Example:The ticker-tape in the figure above was produced by a toy car moving down a tilted runway. If the ticker-tape timer produced 50 dots per second, find … Read more

Finding Velocity from Ticker Tape

January 10, 2021February 10, 2013 by

Finding VelocityThe velocity of motion can be determined by using ticker tape through the following equation:Caution!:t is the time taken from the first dot to the last dot of the distance measured. Example:The diagram above shows a strip of ticker tape that was pulled through a ticker tape timer that vibrated at 50 times a … Read more

Ticker Tape Timer

January 10, 2021February 9, 2013 by

A ticker-tape timer consists of an electrical vibrator which vibrates 50 times per second. This enables it to make 50 dots per second on a ticker-tape being pulled through it. The time interval between two adjacent dots on the ticker-tape is called one tick. One tick is equal to 1/50 s or 0.02 s. Example:Find … Read more

Motion with Uniform Acceleration – Challenging Question 1

January 10, 2021February 7, 2013 by

Challenging Question 1:A car starts from rest and accelerates at a constant acceleration of 3 ms-2 for 10 seconds. The car then travels at a constant velocity for 5 seconds. The brakes are then applied and the car stops in 5 seconds. What is the total distance travelled by car? Answer:It’s advisable to list down … Read more