Abstract
This study investigated the Lagos state secondary school students attitude and interest as correlates of achievement in physics. Validated students attitude and interest questionnaire with reliability coefficient r = 0.75 as well as physics achievement test with reliability coefficient r = 0.78 were used to collect data. Four research questions guided the study. Data collected were analyzed using Pearson Moment Correlation Coefficient, and Descriptive Statistics, mean, mean gain and standard deviation. Recommendations were made based on the results obtained. The study found that there is a positive relationship between students attitude toward physics and achievement in physics. A negative relationship was obtained between students interest and achievement in physics. There was no difference between the attitude and interest of male and female students in physics. It was recommended that government should give out scholarships to students to increase their interest in learning of physics at secondary schools. Similarly, practicing physics teachers at the secondary school level should adopt classroom strategies that will develop and maintain students positive attitude towards physics.