Calculating acceleration P2 Topic 3:Motion and Forces This topic looks at: Velocity Acceleration Distance-time graphs and Velocity-time graphs Action-reaction pairs Resultant Force Interpret the graph Gradient = speed (m/s) A = constant speed B = C = D = Define the following: Velocity = Speed = Acceleration = Interpret the graph Gradient = acceleration (m/s2) A = accelerating B = C = D= Keywords: Current, ammeter, in series, series circuit, parallel circuit, voltmeter What is a vector? Explain the difference between distance and displacement. Calculating acceleration v-u Calculating speed d Gradient = Keywords: potential difference, resistance, ohms, filament lamps, diodes, thermistors, LDR’s, power

(meters/second squared, m/s2) P2 Topic 3:Motion and Forces This topic looks at: Velocity Acceleration Distance-time graphs and Velocity-time graphs Action-reaction pairs Resultant Force Calculate the resultant force What is the definition of a force? What are balanced forces and when do they occur? What are unbalanced forces and when do they occur? What is the difference between mass and weight? What is the value of gravitational field strength on Earth? Keywords: Current, ammeter, in series, series circuit, parallel circuit, voltmeter What is terminal velocity? Using the formula F=ma, fill in the table a b c d e Force (Newtons, N) 200 840 5000 Mass (kilograms, kg) 20 7.0 0.40 Acceleration (meters/second squared, m/s2) 0.80 5.0 6.0 0.20 When there is a resultant force acting on an object, the object will accelerate in the ………………….. of the resultant force. The size of acceleration depends upon two things: 1. 2. On the moon in 1971, astronaut David Scott dropped a feather and a hammer at the same time, explain what happened and why Keywords: potential difference, resistance, ohms, filament lamps, diodes, thermistors, LDR’s, power