Science

4. Explain how a resultant force affects motion

Mission Objectives

Explain what a resultant force is

Calculate acceleration

Investigate the effect force has on acceleration

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Keywords

Words and meanings to learn

resultant force

the overall force acting on an object

accelerate

to speed up

steady speed

neither accelerating or decelerating

decelerate

to slow down

frictional force

forces generated by two surfaces coming into contact with each other; this could be a solid, liquid or gas

This lesson has been written by

Kate Richards

Kate’s journey as a science educator spans over 15 enriching years. Her passion for unravelling the complexities of the human body led her away from medicine (as she hates blood but loves medical t-shows) and into the world of teaching. She’s had the privilege of nurturing young minds in KS3 and KS4 science, guiding A-level Biology students, and even taught year 4 students in Spain, broadening her teaching horizons early in her career. Kate holds a Masters in Teaching (MTeach) and specialises in biology. Her research for her Master's degree focused on the profound impact of self-efficacy on classroom learning. Beyond the classroom, she finds solace in leisurely family walks and exploring new destinations through travel. She finds that the most rewarding aspect of teaching is witnessing those magical "light bulb moments" when students grasp the intricacies of science right before her eyes. 

Required Resources

Resources: A calculator, desk mounted pulley, string, slotted masses/coins, heavy object (1kg), trolley, stopwatch, metre ruler and the handout. 

Handout: An experiment to examine the relationship between force and acceleration. 

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