Name: __________________________ Date: ___________________________ Investigate variables that affect the speed of a toy car rolling down a slope. Know Ideas If the overall, resultant force on an Illustrate a journey with changing on a object is unbalanced, its motion distance-time graph, and label changes in changes and it slows down, speeds up motion. or changes direction. Describe how the speed of an object varies when measured by observers who are not Skill moving, or moving relative to the object. Use the formula: speed = distance (m) / time (s) or distance-time graphs, to calculate speed. Facts A straight line on a distance-time graph shows constant speed, a curving line shows acceleration. The higher the of an object, the shorter the time taken for a journey. Key words How much distance is covered Speed: in how much time. Average The overall distance travelled divided by overall time for a journey. Relative motion: Different observers judge speeds differently if they are in motion too, so an object's speed is relative to the observer's speed. Acceleration: How quickly speed increases or decreases.
Name: __________________________ Date: ___________________________ Investigate variables that affect the speed of a toy car rolling down a slope. Know Ideas If the overall, resultant force on an object is unbalanced, its motion changes and it slows down, speeds up or changes direction. Illustrate a journey with changing on a distance-time graph, and label changes in motion. Describe how the speed of an object varies when measured by observers who are not moving, or moving relative to the object. Skill Use the formula: speed = distance (m) / time (s) or distance-time graphs, to calculate speed. Facts A straight line on a distance-time graph shows constant speed, a curving line shows acceleration. The higher the of an object, the shorter the time taken for a journey. Key words Speed: How much distance is covered in how much time. Average The overall distance travelled divided by overall time for a journey. Relative motion: Different observers judge speeds differently if they are in motion too, so an object's speed is relative to the observer's speed. Acceleration: How quickly speed increases or decreases.
AQA-KS3-SCIENCE-FORCES-S.DOCX