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This test is run by .
Note that your final mark will not be saved in the system.

Waves Reorder

Target Level

4-5

Running Total

Attempt

1 of 3

Drag and drop the boxes into the correct order.

Order the method used to measure the speed of sound directly between two points to ensure the experiment is conducted successfully

Three measurements were taken at a distance of 100 m, and the average time for the sound to travel 100 m was determined.
The results were recorded in a chart and the speed of sound determined for each distance using Average speed = Distance travelled ÷ Average time taken.
The time taken between the second experimenter observing the action and hearing the sounds was measured using the stopwatch.
A distance of 100 m between two experimenters was measured using a trundle wheel. One experimenter was equipped with two blocks of wood and the other with a stopwatch.
The wood blocks were banged together above the first experimenter's head.
The experiment was repeated successfully at distances of 120 m, 140 m, 160 m, 180 m and 200 m.

This is your 1^st attempt! The marking algorithm gives more marks for getting the right order first time.

Pass Mark

70%