![]() Ask them if either of their object reached "terminal velocity?" See check for understanding question as well. Ask them to sketch a velocity versus time graph for an object that might reach terminal velocity. Some student might bring in the idea of "terminal velocity." You should probe what students think this means. Often called the "acceleration of gravity." If students want to give the acceleration they calculated for objects in free fall a symbol, they can call it "a g" or "g" since it is a special acceleration of ALL objects that are freely falling near earth. t graphs of an object free fall would look like. Whiteboard discussion about conclusion and analysis questions in worksheet.īuild class consensus about what the p vs. In groups, students will use LoggerPro to analysis their video and finish the “The Motion of Free Fall “ worksheet.Ĭheck “Sketch of graphs” section of worksheet. (Honors students may be challenged by capturing video of the objects thrown up and falling down.) and upload to the computerĬheck the observation section of lab worksheet. In groups, students will collect videos of 2 different objects free falling. Students will answer the entry task independently. Students will want to bring up and explanation for why all objects accelerate at ~10 m/s/s, BUT state that this lesson is about making the observation, the next unit will be about using the idea of Forces to make sense of this observation. NOTE: This lesson is NOT about gravity or gravitational force. go from one representation of motion to another (words, motion maps, graphs, equations.).represent the motion of an object in free-fall (on way up and on the way down) with position, velocity, and written descriptions. ![]() describe in words that acceleration is the change in velocity during a time interval which can mean speeding up, slowing down, or changing direction.Lesson 3-3 Free Fall Lab Student Worksheetĭetermine that the acceleration of a free-falling object is approximately 10m/s / s. Lesson 3-3 Directions for Video Analysis with LoggerPro Lesson 3-3 Directions for Collecting Video Data Describe the acceleration of the object as it drops. time graphs for the whole motion of the ball. Sketch your prediction of the position vs. Show this youtube video of slow motion pumpkin drop.teacher drops an object straight down.This experience will ALSO connect to gravitational and kinetic energy later in this curriculum.This experience with acceleration will contribute to their eventual understanding of forces (especially gravitational force for this situation).This connects back to their knowledge of instantaneous velocity and graphing from the previous section.Students will be able to experimentally make a velocity-time graph of real-life situation.Physics| Describing Motion| Lesson 3-3 Acceleration of an object in free fall
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