Test: AP Physics C Electricity

1.

A mechanic is using a wrench to loosen and tighten screws on an engine block and wants to increase the amount of torque he puts on the screws to adjust them more easily. Which of the following steps will not help him to do so?

Using a longer wrench

Increasing the magnitude of the force he puts on the wrench

Pulling or pushing at an angle that is less perpendicular to the wrench

Pulling or pushing at an angle that is more perpendicular to the wrench

Using a wrench of a different material

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