High School Physics
In this post, we will find the effect of air resistance on projectile motion. We have seen that in the absence of air resistance, the trajectory or path followed by a projectile is a parabola and that the path depends only on the initial speed and angle of projection. But in the real world, all […]
In some situations, the use of conservation of energy can be a much simpler method to solve projectile motion problems than using the kinematics equations. Solving projectile motion problems makes use of the fact that Ek + Ep = constant at every point in the object’s flight (assuming no loss of energy due to friction). […]
This post presents a Q&A worksheet covering distance-time graph and velocity-time graph. Before you try to solve these, you may read our posts on the distance-time graph (d-t graph) and the velocity-time graph (v-t graph).
We will discuss and list down the formulae of position, velocity, and acceleration related to the Motion in two and three Dimensions using unit vectors i, j, and k format. We will list down the 2-Dimensional equivalent of motion equations or suvat equations. Also, we will solve numerical problems using the formulas of the position […]
Horizontal projectiles are directed straight out as a horizontal projection. It undergoes downward acceleration under the influence of gravity and hence gets an increasing downward velocity. At the same time, the horizontal velocity of the horizontal projectile remains the same throughout the flight as there are no forces in the horizontal direction if you ignore […]
In this post, we will make a comparison between Vertical projectiles and Horizontal projectiles. When an object is thrown or projected, into the air it’s named a projectile. Essentially, such a projectile (rock, football, bullet, golf ball, or whatever) could be directed straight upward as a vertical projection, directed straight out as a horizontal projection, […]
Statement of three laws of Motion along with their concept building – that is the objective of this post. Statement of three laws of Motion Here we state the 3 laws of motion: Read more about the 2nd Law of motion Read more about the 3rd Law of motion Laws of Motion – some very […]
The acceleration in a uniform circular motion (Fig. 1) has some similarities to the acceleration in projectile motion (Fig. 2) without air resistance, but there are also some important differences between Uniform circular motion and projectile motion. Differences between Uniform circular motion and projectile motion 1) In both kinds of motion, the magnitude of the […]
This Motion in one dimension Notes [PDF download] is primarily for the grade 10 or 10th-grade syllabus of different international boards. This also covers the class 11 physics syllabus on motion (1d) for boards like ICSE, CBSE, etc. This physics class note covers the theoretical as well as the numerical part of this important chapter. […]
This Projectile Motion Notes [PDF download] is primarily for the grade 12 or 12th-grade syllabus of different international boards. This covers the class 11 physics syllabus on 2D motion as well for boards like ISC, CBSE, etc. Students looking for Projectile motion notes for class 11 or Projectile motion notes for grade 12 can download […]
In the next section, we will list down the Projectile Motion Formulas or equations. (Projectile trajectory equation & other formulas like maximum height and horizontal range of the projectile, time of flight, etc.)
Acceleration, velocity, and displacement of the projectile at different points of its parabolic trajectory are what we are going to study here. Both horizontal and vertical components of these 3 motion quantities will be presented in tabular format. Consider a ball that is projected at an angle θ to the horizontal with velocity v, as […]
Any variation from moving at a constant speed in a straight line is described as acceleration.It is very important to realize that going faster, going slower, and/or changing direction are all different kinds of acceleration (changing velocities). Acceleration, a, is defined as the rate of change of velocity with time.If the acceleration is constant over […]
How to use graph paper to draw motion graphs?
IGCSE Physics Definitions from the Forces and Motion chapter are listed below. It contains definitions for vector, scalar, torque, CG, velocity, force, acceleration, and important laws like Newton’s laws of motion, Hooke’s law, etc. This post also includes reference links to detailed posts on respective topics that would certainly help the students of all boards […]
Derivation of the Equations of Motion: To calculate quantities involving motion in a straight line at a constant acceleration we need four equations. These equations are often informally referred to as the ‘suvat equations’ after the symbols used for the 5 quantities involved. We will derive equations for the following 5 motion quantities: displacement (s), […]
Here we will discuss the motion graphs of vertically falling objects when air-drag or air-resistance is present. Certainly, it’s not a free fall as during free-fall air drag is ignored and only gravity is considered. But in this case, we are discussing the vertical motion which is under the influence of both gravity and air-drag. […]
Here we will discuss the motion graphs of falling objects during free-fall. During free-fall, the only force that is considered to act on the vertically falling object is Gravity. That means during free-fall the air drag is not considered. In other words, in those cases where air drag is found to be negligibly small and […]
The displacement-time graph for the motion of a ball thrown vertically upwards in the air is shown in figure 1. As the ball goes higher, its velocity decreases continuously (deceleration) till at time t1, when it reaches the highest point it comes to rest momentarily. From the instant of throwing vertically upwards to the highest […]
Let’s see how uniform acceleration is different from non-uniform acceleration. Acceleration is defined as the rate of change of velocity. We call an acceleration uniform when the change of velocity per unit time is constant i.e. velocity changes by an equal amount in an equal interval of time. In uniform accelerated motion velocity-time graph is […]
Uniform Circular motion is an accelerated motion. In this quick post we will first discuss what uniform circular motion is and then will find how this motion is with acceleration in spite of being uniform. Uniform Circular Motion is a motion with acceleration – Explain how? An object that moves in a circle at constant […]
Rotational motion is a type of circular motion. In other words, all circular motions can’t be called rotational motion, but all rotational motions are certainly circular motions. When an object turns, it’s in a circular motion irrespective of the position of its axis. But for a rotational motion, the axis has to be located within the body of the object.
The difference between a distance-time graph and a displacement-time graph for a ball thrown directly upwards
Here we have listed down important equations (or formula sets) related to Kinematics. You will get kinematics equations on position, displacement, total displacement, average velocity, instantaneous velocity, average speed, instantaneous speed, average acceleration, instantaneous acceleration, velocity from acceleration, the position from velocity, free-fall equations, etc. Kinematics equations – cheat sheet kinematic equations for uniformly accelerated […]
Here we will solve selected Projectile Motion Numericals for class 11 and will also provide solution guidance. To get a good grasp on this chapter we need to solve some numerical problems, which really helps us a lot to understand the basics and use the formulas. Earlier we published posts on the derivation of the […]
This post is to discuss the Distance-Time graph with a few examples. A distance-time graph is a graphical representation of “how something moves”, pointing to the distance of the object from the starting point and the time instant from the staring moment along two axes of the graph. Distance-Time graph for stationary body Distance-Time graph […]
Parachute motion under the influence of gravity and air drag (resistance) and the speed-time graph of this fall – This is the topic of this post. And we will cover this step by step. How does Parachute motion happen under gravity and air drag? 1) A free-fall parachutist jumps out of the aircraft and accelerates […]
What is the difference between distance and displacement?
Motion in one dimension – Multiple Choice Questions (MCQ):In this post, we are presenting an awesome set of MCQs on Motion in one dimension. These multiple-choice questions will make you confident enough about this chapter, provided you try this MCQ paper to test your understanding. We found this set on the internet and thought to […]
Speed and velocity both indicate how fast a body is traveling, but there is an important difference between these quantities. The average speed, v, of a body, is given by its rate of change of distance, whereas the average velocity, v, of a body, is its rate of change of displacement. The SI unit for […]
Why Do Different Masses (and Weights) Fall at the Same Rate?A quick answer is: As the value of g is the same for all falling objects (regardless of their mass) near the surface of the earth and in the absence of external forces, hence objects with different masses (and weights) fall together or fall at […]
The quantity that tells us the rate at which an object is changing its velocity at a specific instant in time anywhere along its path is the instantaneous acceleration. That means when we say ‘acceleration’ of a body we actually mean instantaneous acceleration. Another related term is the average acceleration that is basically for a […]
In this post, we have taken the Average Acceleration Formula as our topic of discussion. We will see how to define and find it, and how to solve sample numerical problems using the formula. This post is useful for class 11 students who are studying this chapter. When velocity changes an object is said to […]
Why Online Physics Calculator for Projectile Motion? This post presents you with a set of Projectile motion online calculators to calculate parameters like maximum height, maximum horizontal range, time for upward motion, the total time of flight, etc. If you use these calculators, you can easily and quickly find out how certain input parameters can […]
The quantity that tells us how fast an object is moving at a specific instant in time anywhere along its path is the instantaneous velocity, usually called velocity as well. That means when we say ‘velocity’ of a body we actually mean instantaneous velocity. Another related term is the average velocity that is basically for […]
How fast an object is moving can be expressed by the rate at which the position of the object changes with time. For each position xi, we assign a particular time ti. If the details of the motion at each instant are not important, the rate is usually expressed as the average velocity v. Average […]
In this post, we discuss the meaning and definition of inertia. Inertia is an important concept in the kinematics chapter of physics. Understanding it helps us to get an idea of the inertial frame of reference.We will also see how mass is related to inertia. And, finally, we will study one example to understand inertia. […]
In this post we will solve harder numerical problems on Vertical motion physics. vertical motion is an interesting chapter in mechanics . Here you get selected problems to solve which will help you to test your understanding.
NCERT solutions for class 11 physics chapter 5 laws of motion – This chapter covers selected problems from the chapter laws of motion. Here we are solving selected problems both from the Exemplar and NCERT Physics textbook. If any problem needs some coverage of fundamentals we are catering that also. We are giving the reference […]
The velocity-time graph is defined as a graphical representation of the velocity of a body in motion with respect to time. Generally, velocity is assigned to the y-axis, and time is pointed to the x-axis. This graph type is also written as a v-t graph or velocity-time graph. The diagram below depicts a few velocity-time […]
