AQA Trilogy GCSE Science - Science
Mission Objectives
Investigate the relationship between force, mass and acceleration using a trolley and pulley system
Collect data and analyse results to verify Newton’s Second Law (F= ma)
Evaluate the effects of experimental uncertainties and systematic errors
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Words and meanings to learn
acceleration
the rate at which an object’s velocity changes, measured in metres per second squared (m/s²)
proportional relationship
a relationship where one quantity increases or decreases in direct proportion to another
mass
the amount of matter in an object, measured in kilograms (kg)
average
a calculated mean value, used here to improve accuracy in timing results
gravity
the force that pulls objects toward the Earth, affecting the mass hanger’s pull on the trolley
Samantha is a dedicated and accomplished science educator with over 15 years of leadership experience in the field, coupled with a strong background in scientific analysis. She has a proven track record of strategically managing educational departments, driving operational efficiencies, and nurturing collaborative relationships with stakeholders.
Samantha previously served as the Head of Chemistry and Sixth Form Tutor, Ilkley Grammar School, Ilkley with extensive Key Stage 4 and 5 teaching experience and leadership. In addition to her teaching and leadership roles, she is also an examiner for AQA, providing her with valuable insight into assessment standards and exam specifications.
In her spare time, Samantha enjoys playing the accordion with her local orchestra and has recently taken up cricket, where she's enthusiastically honing her skills both on and off the pitch!
1m ruler, toy car, bench pulley, string and small weight stack (e.g. 1 N in steps of 0.2 N), two clamp stands, clamps and bosses and sticky tac to attach weights to the car.
Using a smartphone to video the sequence will provide more reliable data.
Link to spreadsheet.
This investigation can be done with simple equipment (stopwatches and toy cars) or using a linear air track and light gates. However, if the latter method is used, students will not have the opportunity to complete physics AT 1 measurement of mass and time.
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