When an object moves in a but a constantly When an object moves round circle the direction of the varying velocity. a track at a steady speed why object is continually is the average velocity 0 m/s Show that the average changing. This means that (uses idea of displacement)? velocity of an object an object moving in a circle around a circular track at constant speed has a is 0 m/s. continually changing velocity. 4.7.1.4 Acceleration is the rate at Define acceleration. 0.5 Why do motorcycles have a Investigate the which the velocity of an greater acceleration than cars acceleration of a trolley Calculate the object changes. even though the engine is in a lab ticker tape acceleration of a usually much smaller? or light gates. acceleration = change in vehicle when given the velocity ÷ time initial and final speed Discussion questions: and the taken for a = ÷ t Why is acceleration ∆v the change in speed to important in a car crash? acceleration, a, in metres per occur. Rearrange the How can we find the second squared, m/s2 equation to find other acceleration of an object? unknown quantities. change in velocity, in What happens to a moving ∆v, metres per second, m/s Define deceleration as object when the negative acceleration. acceleration becomes time, t, in seconds, s zero? Explain what negative What factors affect the acceleration means, deceleration of a vehicle?
When an object moves in a circle the direction of the object is continually changing. This means that an object moving in a circle at constant speed has a continually changing velocity. but a constantly varying velocity. Show that the average velocity of an object around a circular track is 0 m/s. When an object moves round a track at a steady speed why is the average velocity 0 m/s (uses idea of displacement)? 4.7.1.4 Acceleration is the rate at which the velocity of an object changes. acceleration = change in velocity ÷ time a = ∆v ÷ t acceleration, a, in metres per second squared, m/s2 change in velocity, ∆v, in metres per second, m/s time, t, in seconds, s Define acceleration. Calculate the acceleration of a vehicle when given the initial and final speed and the taken for the change in speed to occur. Rearrange the equation to find other unknown quantities. Define deceleration as negative acceleration. Explain what negative acceleration means, 0.5 Why do motorcycles have a greater acceleration than cars even though the engine is usually much smaller? Discussion questions: Why is acceleration important in a car crash? How can we find the acceleration of an object? What happens to a moving object when the acceleration becomes zero? What factors affect the deceleration of a vehicle? Investigate the acceleration of a trolley in a lab ticker tape or light gates.
AQA-8465-SOW-MAI.DOCX