What is acceleration?

Acceleration is the rate of change of velocity. a = Δv/t = (v_f - v_i) / t.

Acceleration is measured in m/s² (meters per second squared).

Positive vs negative acceleration?

Positive = speeding up, negative = slowing down (deceleration).

Density is mass per unit volume (ρ = m/V). It tells how tightly matter is packed.

Water has a density of 1000 kg/m³ or 1 g/cm³ at 4°C.

Divide by 1000. Example: 1000 kg/m³ = 1 g/cm³.

F = ma states that force equals mass times acceleration. One of the fundamental laws of physics.

A Newton (N) is the SI unit of force. 1 N = 1 kg⋅m/s². It's the force needed to accelerate 1 kg at 1 m/s².

Weight = mass × gravity (9.8 m/s² on Earth). For example, 10 kg = 98 N weight.

KE is energy an object has due to motion. Formula: KE = ½mv².

Physics, chemistry, electrical, and engineering calculations.

Calculate acceleration, velocity change, or time using a=Δv/t. Perfect for kinematics and motion problems.

Calculate density, mass, or volume using ρ=m/V. Essential for chemistry, physics, and material science.

Estimates the dew point temperature based on air temperature and relative humidity using a common meteorological approximation.

Calculate force using Newton's Second Law (F=ma). Determine force, mass, or acceleration for physics problems.

Calculates gas pressure using the Ideal Gas Law (P = nRT / V).

Calculate kinetic energy from mass and velocity using KE=½mv². Perfect for physics and mechanics.

Calculate voltage, current, resistance, and power using Ohm's Law (V=IR). Essential for electrical engineering and electronics.

Calculate gravitational potential energy using PE=mgh. Essential for physics energy problems.

Calculate power, work, or time using P=W/t. Essential for physics and engineering energy calculations.

Calculate pressure, force, or area using P=F/A. Essential for fluid mechanics and engineering.

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Calculate velocity, distance, or time using v=d/t. Perfect for physics, motion, and kinematics problems.

Calculate wavelength, frequency, or wave speed using c=λf. Perfect for electromagnetic waves and physics.

Estimates how cold it feels based on air temperature and wind speed using the official National Weather Service formula.