AQA GCSE Physics - P5 – Forces Exam Questions with Latest Update

Vectors - ANSWER-Quantities that have a magnitude and direction Scalars - ANSWER-Quantities that only have a magnitude Vector Examples - ANSWER-Force, velocity, displacement, acceleration, momentum Scalar Examples - ANSWER-Speed, distance, mass, temperature, time Contact Forces - ANSWER-A force that requires 2 objects to be touching Non-Contact Forces - ANSWER-A force that does not require 2 objects to be touching Contact Force Examples - ANSWER-Friction, air resistance, tension Non-Contact Force Examples - ANSWER-Magnetism, gravity, electrostatic forces Weight - ANSWER-The force acting on an object due to gravity Mass - ANSWER-The amount of 'stuff' in an object Weight Equation - ANSWER-Weight (N) = Mass (kg) x Gravitational Field Strength (N/kg) Earth's Gravitational Field Strength - ANSWER-9.8N/kg Resultant Force - ANSWER-The overall force on a point or object Extension Equation - ANSWER-Force (N) = Spring Constant (N/m) x Extension (m) Moment Equation - ANSWER-Moment (Nm) = Force (N) x Distance (m) Moment - ANSWER-The turning effect of a force Pressure Equation - ANSWER-Pressure (Pa) = Force (N) / Area (m) Pressure Of A Liquid Equation - ANSWER-Pressure (Pa) = Height (m) x Density (kg/m) x Field strength (N/kg) Upthrust - ANSWER-Force on an object. If it is equal to the object's weight, it will float. If the upthrust is less than the weight, it will sink