How I Tested It

I tested it using a spring scale. A spring scale is a type of scale used to measure the amount of pressure, force, or work. You can measure in grams or newtons. I used newtons when I tested my machine. I also measured the time it takes my machine to transport food to the bowl. I also used a timer. Using a timer, you can measure in seconds, minutes, or hours, depending on the time it takes. I used seconds. You will see several tests. You must do more than one test to be accurate. Here are my test results.

Force (put on lever)

Test 1       20 Newtons

Test 2       19 Newtons

Test 3       19 Newtons


So the average force put on the lever is 19 Newtons.

Time

Test 1      15 seconds

Test 2      10 seconds

Test 3      13 seconds


So the time it takes to transport food into the bowl is about 10-15 seconds.