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Energy can be classified into two main forms: Kinetic energy (energy of motion) and Potential energy (energy stored in a system) Here are the different types of energy in physics: #1 Mechanical energy or motion energy: Sum of kinetic energy (energy of motion) and the potential energy (energy stored in a system) Example: Mechanical energy … Read more

Friction force (Ff) is equal to the product of coefficient of friction (µ) and the normal force (FN). Using the equation of friction: Ff = µ × FN, the value of friction force acting on an object can be calculated. Let’s solve some problems based on this equation, so you’ll get a clear idea. Friction … Read more

Kinematic equations are the set of 4 equations that consist of five kinematic variables: displacement (Δx), acceleration (a), initial velocity (vi), final velocity (vf) and time (t). Each kinematic equation contains four known kinematic variables and one unknown kinematic variable. Using the proper kinematic equation, the unknown information about an object’s motion can be found … Read more

Pressure (P) is equal to the ratio of force (F) to the surface area (A). Using the equation of pressure: P = F/A, the value of pressure acting on an object can be calculated. Let’s solve some problems based on this equation, so you’ll get a clear idea. Pressure Practice Problems Problem 1: Calculate the … Read more

Velocity (v) is equal to the ratio of change in position (Δx) to the time (t). Using the formula of velocity: v = (xf – xi)/t, the value of velocity of an object can be calculated. Let’s solve some problems based on this formula, so you’ll get a clear idea. Velocity Practice Problems Problem 1: … Read more

Mass (m) is equal to the product of density (ρ) and the volume (v). Using the formula of mass: m = ρ × v, the value of mass of an object can be calculated. Let’s solve some problems based on this formula, so you’ll get a clear idea. Mass Practice Problems Problem 1: Calculate the … Read more

Momentum (p) is equal to the product of mass (m) and the velocity (v). Using the equation of momentum: p = m × v, the value of momentum of an object can be calculated. Let’s solve some problems based on this equation, so you’ll get a clear idea. Momentum Practice Problems Problem 1: Calculate the … Read more

Acceleration (a) is equal to the ratio of change in velocity (Δv) to the time (t). Using the formula of acceleration: a = (vf – vi)/t, the value of acceleration of an object can be calculated. Let’s solve some problems based on this equation, so you’ll get a clear idea. Acceleration Practice Problems Problem 1: … Read more

Moment of inertia or rotational inertia (I) is equal to the product of mass (m) and the square of distance (r). Using the formula of rotational inertia: I = m × r2, the value of rotational inertia of an object can be calculated. Let’s solve some problems based on this formula, so you’ll get a … Read more

Acceleration due to gravity or gravitational acceleration (g) is equal to the product of universal gravitational constant (G) and the mass (M) divided by the square of radius (r). Using the equation of gravitational acceleration: g = G M/r2, the value of gravitational acceleration on the surface of an object can be calculated. The value … Read more