When planning a test to see the interaction between a magnet and a magnetic object, what is needed to have a fair test?(1 point)

Question

Responses

different magnets that have different sizes and strengths
different magnets that have different sizes and strengths

running at least two trials for each material in different places
running at least two trials for each material in different places

different materials that have the same size and thickness
different materials that have the same size and thickness

running one trial for each of the different materials used

Answer 1

different magnets that have different sizes and strengths