Worksheet – Terminal Velocity (Year 10 Physics) May 14, 2025May 14, 2025 Navu Use g = 9.8 N/kg if required in your calculations. Full Name: Q1: What does terminal velocity mean? The highest speed an object can reach when falling through a fluid The speed an object has when it starts to fall The speed at which an object bounces back The average speed of an object in air Q2: Which force increases as an object speeds up through a fluid like air? Weight Thrust Air resistance Gravitational force Q3: What happens to the resultant force on an object when it reaches terminal velocity? It becomes greater than the weight It becomes zero It becomes equal to mass It doubles Q4: A skydiver jumps out of a plane. Shortly after they begin to fall, which force is greater? Assume terminal velocity has not yet been reached. Air resistance is greater than weight Weight is greater than air resistance They are equal There is no air resistance Q5: Eventually, a falling object stops accelerating because... The air resistance becomes zero Its mass decreases The air resistance balances the weight Gravity stops acting on it Q6: Which of these would most likely have a higher terminal velocity? A feather of mass 0.5 g A flat sheet of paper of mass 5 g A steel ball of mass 65 kg with an open parachute A steel ball of mass 65 kg Q7: If a falling object has a mass of 3 kg and reaches a constant velocity, what is the size of the air resistance? 3 N 9.8 N 19.6 N 29.4 N Q8: An object with a mass of 5 kg is dropped from a height. At a certain point during its fall, the air resistance acting on it is 20 N. What is the object's acceleration at that moment? 4.2 m/s² 5.8 m/s² 6.5 m/s² 9.8 m/s² Q9: An object with a mass of 8 kg is falling through the air. At a certain moment, the air resistance acting on it is 50 N. What is the object's acceleration at that moment? 6.25 m/s² 4.8 m/s² 3.55 m/s² 9.8 m/s² Q10: A falling object has reached terminal velocity. Which of the following statements is true? It continues to accelerate Its weight is greater than air resistance Air resistance and weight are balanced There is no air resistance Q11: An object falls through air. As its speed increases, what happens to the air resistance acting on it? It decreases It stays the same It increases It becomes zero Submit