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The passenger in the rear seat of a car moving at a steady speed is at rest relative to: • • • • A. B. C. D. the side of the road. a pedestrian on the corner ahead. the front seat of the car. the wheels of the car. The product of an object’s mass and velocity is its • • • • A. B. C. D. centripetal force. momentum. net force. weight. The power of a machine measures • • • • A. B. C. D. its rate of doing work. its strength. the force it produces. the work it does. The type of current in your school is mostly • • • • A. B. C. D. direct current alternating current. series current. parallel current.