1 of 20 If an object of constant mass experiences a constant net force, it will have a constant acceleration. velocity. speed. position. Question 2 of 20 Using the reference frame defined in the lesson (positive quantities to the right are positive), an object moving to the left and slowing down has positive displacement, positive velocity, and negative acceleration. negative displacement, negative velocity, and negative acceleration. negative displacement, negative velocity, and positive acceleration. positive displacement, positive velocity, and zero acceleration. Question 3 of 20 A skydiver falls towards the Earth. The attraction of the Earth on the diver pulls the diver down. What is the reaction to this force? Air resistance the diver encounters while falling Water resistance that will soon act upward on the diver The attraction to the planets, stars, and every particle in the universe None of these Question 4 of 20 Which of the following are examples of scalar quantities? Time and mass Acceleration and time Mass and force Force and velocity Question 5 of 20 Which of the following are examples of vector quantities? Mass and velocity Volume and acceleration Acceleration and force Force and mass Question 6 of 20 A falling object is said to reach terminal speed when there is no gravitational force acting on it. its air resistance equals the force of gravity on it. its air resistance equals the force of friction on it. there is no air resistance