Students build four electromagnets and test them by picking up metal tacks. Here are their partial results.
12 coils 4 tacks
24 coils 9 tacks
36 coils 13 tacks
48 coils ? tacks
Which is the best prediction for the number of nails the electromagnet with 48 coils will pick up?(1 point)
20 tacks
13 tacks
12 tacks
16 tacks
1 answer
It seems that the number of tacks picked up by the electromagnet is increasing as the number of coils increases. Based on this trend, the best prediction for the number of tacks the electromagnet with 48 coils will pick up is 16 tacks.
1 answer