What is a reference point?, The distance an object travels, A point used to describe the position of an object, The speed of an object, The time an object takes to move, Which information is needed to describe an object's position accurately?, Distance and direction from a reference point, Color and size, Time and temperature, Speed and mass, A student is 5 meters east of the school. What is the school in this description?, The motion, The distance, The direction, The reference point, If east is chosen as the positive direction, which position represents an object 20 meters west of the reference point?, +20 m, +40 m, −20 m, 0 m, What does a negative position usually indicate in a one-dimensional reference system?, The object is smaller, The object has stopped, The object is in the direction opposite the chosen positive direction, The object is moving slowly, A student is sitting inside a moving bus. Which statement is correct?, The student has no position., Whether the student is moving depends on the reference point., The student is always at rest., The student is always moving., Which statement best describes motion?, A change in position over time relative to a reference point, An object's color changing, A fixed position, The distance between two objects, A library is 40 meters west of a school. Which statement gives the most complete description of its position?, The library is west., The school is near the library., The library is 40 meters away., The library is 40 meters west of the school., On a distance-time graph, what does a horizontal line usually mean?, The object is speeding up., The object is stopped relative to the reference used in the graph., The object's distance is changing rapidly., The object is moving backward., What does the horizontal axis of a distance-time graph usually represent?, Distance, Position, Direction, Time, What does the vertical axis of a distance-time graph usually represent?, Reference point, Direction, Distance, Time, A train's distance from a station changes from 2 km to 6 km over time. What does this tell you?, The train's position relative to the station changed., The train definitely stopped., The station moved., The train had no position., Why is the statement "The museum is 80 meters away" incomplete?, Distance cannot be measured in meters., The number is too large., It does not give a reference point or direction., Museums cannot be used as reference points., If a reference point is at 50 cm and an object is at 40 cm on a meterstick, the object is:, 10 cm in the negative direction, 40 cm from the reference point, 10 cm in the positive direction, 90 cm from the reference point, Why do scientists use evidence when describing motion?, To replace the reference point, To support a scientific claim with observations or measurements, To avoid using measurements, To make the explanation longer

Reference Points and Motion

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