Question

investigating gravity quick check
a team of students performs an experiment to test the effect of gravity on different objects with the same mass. they measure how long it takes the objects to fall from the top of the schools bleachers. how can they insure they get accurate data? (1 point)
by dropping all the objects at once
by repeating the experiment several times
by using a high - tech stopwatch
by dropping the objects in random order

Explanation:

Repeating an experiment several times helps to reduce the impact of random errors. For example, if there is a slight variation in the release of the object or in the timing for one trial, repeating the experiment allows for averaging out these anomalies. Dropping all objects at once could lead to visual confusion in timing. Using a high - tech stopwatch might not be necessary if basic stopwatches are used correctly and consistently. Dropping objects in random order does not directly address the issue of data accuracy as much as repetition does.

Answer:

by repeating the experiment several times