Basic Physics Formulas & Notes for Competitive Exams

Do you ever think about why the sky is blue or how the gravity works? Physics essentially studies how the fundamental constituents of our universe interact. Comprising an imperative part of the syllabus for many competitive exams organised for admission into engineering and technical programmes, this discipline constitutes a varied range of sub-fields ranging from quantum physics to nuclear physics. This blog aims to provide you with a comprehensive list of basic Physics formulas that you must know to ace your chosen competitive exam.

Check Out: English for Competitive Exams

Basic Physics Formula

Real values must be articulated, not simply memorised, in order to understand physics. Applications may expose us to a variety of ideas, issues, and mathematical formulas. We must apply our aptitude, imagination, and good sort of potential to things in order to develop solutions. Real values must be articulated, not simply memorised, in order to understand physics. Applications may expose us to a variety of ideas, issues, and mathematical formulas. We must apply our aptitude, imagination, and good sort of potential to things in order to develop solutions.

List of Basic Physics Formulas

Here are some basic physics formulas for competitive exams-

1. Average Speed Formula

Using this Physics formula, we can calculate the average speed (S) of a moving body for the distance covered (D) as well as the time duration (T).

1. Density Formula

This formula depicts the denseness of material in a specific given area.

1. Acceleration Formula

Acceleration is the rate of change velocity with respect to the change in time.

1. Power Formula

The capacity to perform an activity is known as Energy. On the other hand, energy spent in carrying out an activity (work) for a particular period of time is termed as Power.

1. Pressure Formula

The amount of force applied per unit of an area is referred to as the pressure of an object.

1. Ohm’s Law Formula

Amongst the popular Physics formulas, the Ohm’s Law is explained as the current (I) passing through some conductor material is directly proportional to the potential difference (V) between the two endpoints of the conductor.

Exploring Physics formulas? Check out Trigonometry Formulas for Quantitative Section in Competitive Exams

Basic Physics Notes

To crack any competitive exam, familiarizing oneself with the syllabus and exam pattern is of paramount importance. Considering the vast number of applicants every year, one cannot deny the fact that, to grab a tantalizing score you must learn the intricacies on your tips. Often, the important concepts are prepared by everyone but what fetches the extra marks there is the knowledge of the minute concepts of the subjects. While you must strengthen your basic Physics formulas, it is also imperative to go through the fundamental concepts under this subject. To help you strengthen the varied Physics concepts, we have explained some of the frequently asked topics under this discipline.

SI Units

Questions regarding the SI unit are frequently asked in many engineering exams. Here are the key pointers you must remember under SI units along with the basic physics formulas mentioned above. SI units as a concept are given less importance but they hold a very significant presence in questions papers of various exams. Following are some of the important SI you must remember and apply in your basic physics formulas.

Important Instruments and Devices

Most of are only aware of common devices or instruments used in various experiments of physics. These instruments can be incorporated in varied questions to evaluate a student’s understanding of basic physics concepts and formulas. Take a look at the following which enlists these instruments and devices as well as their simplified definitions.

Also Read: LCM and HCF for Competitive Exams

Practice Questions

• The width of a door is 40 cm. If it is released by exerting a force of 2 N at its edge (away from the hinges). Compute the torque produced which causes the door to open.
• A pendulum’s length is 4 meters. It completes one full cycle of 0.25 times every second. The maximum displacement that the pendulum bob reaches is 0.1 meters from the centre. Find out the time period of the oscillation? And what is the displacement after 0.6 seconds?
• A pendulum has a period of 1.90 s on Earth. What is its period on Mars, where the acceleration of gravity is about 0.37 that on Earth?
• Let’s consider a man is pushing a lawnmower across a yard and the force that he is applying to the handle is angled down at 60^o from the horizontal plane. Besides, the force has a magnitude of 900 N. So, if he pushes the mower 30 m. Then calculate the work done by the person to move the lawnmower.
• A wave has a frequency of 50 Hz. It also has a wavelength of 10 m. Find out the speed of the wave?
• Suppose Geeta leaves Delhi to visit Rohit in Delhi. She decides to travel by train and covers 350 kilometres to the north. Then the track turns back to the south of 125 kilometres. Calculate Geeta’s total displacement using the displacement formula?
• A box that weighs 250 N is at rest on the floor. If the pressure exerted by the box on the floor is 25,000 Pa, over what area is the box in contact with the floor?
• The mass of an object happens to be 1 kg. Furthermore, a force of 2 Newton is applied on it. Find out the magnitude and direction of the object’s acceleration.
• A person’s mass happens to be 70 kg, while the gravity on Earth is 9.8 m/s2. Find out the weight of this person?
• Calculate the gravitational force which acts upon two objects of masses 15 g and 15 kg which are 11 m apart?

FAQs

What are the 3 formulas in physics?

These are the three equations: v = u + at. S = ut + 12at2; v2 = u2 + 2as.

What is the most famous physics formula?

E=mc2, one of the most well-known physics equations, deals with energy. The letters E, m, and c in this equation stand for energy, mass, and the speed of light in a vacuum, which is approximately 186,000 miles per second or 3 x 108 metres per second. Albert Einstein, a scientist, created this equation.

What are the 4 laws of physics?

Because they are the only forces in nature that can be observed, these four fundamental forces are referred to as such. Gravitation, electromagnetism, the weak nuclear force, and the strong nuclear force are the four fundamental forces.

Thus, we hope that this blog has equipped with the basic physics formulas and concepts you must know while preparing for competitive exams. If you are gearing up for competitive exams like GRE and GMAT, book an online demo session with our Leverage Edu experts and we will guide you through your preparations, providing you with the best study material and exam day tips to crack your exam with flying colours!

1. bhuvanesh says:

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1. Team Leverage Edu says:

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1. Team Leverage Edu says:

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