9.8 m/s² (or 32.2 ft/s²) This means a falling object increases speed by 9.8 meters per second every second (ignoring air resistance). view more
For every action, there is an equal and opposite reaction. view more
V = IR (Voltage = Current × Resistance) Where: - V = voltage (volts) - I = current (amps) - R = resistance (ohms) Example: 2 amps through 5 ohms = 10 volts view more
KE = ½mv² (half mass times velocity squared) Example: - Mass: 2 kg - Velocity: 3 m/s - KE = ½ × 2 × 9 = 9 Joules Kinetic energy is the energy of motion. view more
299,792,458 meters per second Approximately: - 300,000 km/s - 186,000 miles/s Denoted as "c" in physics. view more
Law of Inertia: An object at rest stays at rest, and an object in motion stays in motion at constant velocity, unless acted upon by an external force. view more
F = ma (Force = mass × acceleration) Example: - Mass: 10 kg - Acceleration: 2 m/s² - Force: 10 × 2 = 20 Newtons The unit of force (Newton) is defined as kg⋅m/s². view more
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