[Motion labs]
#1 Force and Acceleration lab
#2 Friction lab
#3 Circular motion lab
#5 Linear momentum lab
#5 Pendulum lab
#1 Force and Acceleration lab
concept | A constant, unbalanced force acting on any movable object produces a constant acceleration in the direction of the force. A certain amount of unbalanced force will result in a specific acceleration of an object in the direction of the force. (Force and acceleration are directly proportional. | Equipments | air track air track glider string weight holder slotted weights OR tilt blocks stopwatch |
purpose | Students investigate how a constant force yields constant acceleration. They also collect data to construct and interpret a graph of force vs. acceleration. |
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#2 Friction lab
concept | When one object moves over another, a retarding force called friction acts opposite to the direction of motion. Both surface types, the force pressing the surfaces together, and whether the objects are in motion or not each affect friction between solids. | Equipments | surface board long narrow mirror metal plate surface blocks (plain, mirrored, sandpaper) newton scales masses with various weight |
purpose | Students pull blocks with various surfaces across various surfaces to identify the primary factors affecting friction. |
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#3 Circular motion lab
concept | When one object moves over another, a retarding force called friction acts opposite to the direction of motion. Both surface types, the force pressing the surfaces together, and whether the objects are in motion or not each affect friction between solids. | Equipments | 100 gram mass string narrow glass or metal rod rubber stopper stopwatch |
purpose | Students observe the trajectory of a circling puck released on an air table, analyzing its behavior. They analyze the forces acting when they twirl a stopper using a tube device. |
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#5 Linear momentum lab
concept | The momentum of an object is the product of its mass and velocity. The momentum of an isolated and closed system (no external force) is conserved. | Equipments | air track 3 air track gliders (two 300 gram and one 150 gram) photogates with basic timers electric glider launcher |
purpose | Students collect data for elastic or inelastic collisions that leads to the law of conservation of momentum. | |
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#5 Pendulum lab
concept | When one object moves over another, a retarding force called friction acts opposite to the direction of motion. Both surface types, the force pressing the surfaces together, and whether the objects are in motion or not each affect friction between solids. | Equipments | pendulum pressure clamps meter stick stopwatch vernier caliper |
purpose | Students measure "g" using the period (T) of a pendulum. |
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