English National Curriculum Science

3. Describe the effects of relative motion

Mission Objectives

Explain how relative motion can affect speed calculations

Calculate relative speed

Define relative motion, giving examples of where it can be observed

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Keywords

Words and meanings to learn

motion

a change in the position of of object with respect to time, as measured by a particular observer

observation

the action of closely monitoring something

kinematics

the branch of mechanics concerned with the motion of objects without reference to the forces which cause the motion

relative motion

the motion of one body with respect to another regarded as fixed

velocity

the speed of something in a given direction

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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: Calculators, desk mounted pulleys, string, slotted masses, weighted blocks, dry wipe pen, metre ruler/tape measure and the handout. 

Handout: A sheet for the students to measure and calculate the relative motion of some moving blocks.

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