AP Physics 1 questions with correct answers

What two entities comprise a vector? CORRECT ANSWER Magnitude and direction What do you do with any vector that is not on either the x or y axis? CORRECT ANSWER Break it up into x and y components using trig, add up the components. How are velocity and speed different? CORRECT ANSWER Velocity has a direction and speed does not have direction. What quantity is calculated from slope of the displacement versus time graph? CORRECT ANSWER velocity What does upward slope on a displacement versus time graph imply about the velocity. CORRECT ANSWER The velocity is positive What is acceleration? CORRECT ANSWER How quickly you change velocity. What is the area under the velocity time graph? CORRECT ANSWER Displacement What is the y intercept of the velocity time graph? CORRECT ANSWER The initial velocity, (Vo in the formulas) What is the area under the acceleration versus time graph? CORRECT ANSWER The CHANGE in velocity.