Physics 1603 Exam Chapter 5-7 Review Questions and Answers 2023

Which of the following statements is true - -an astronaut's mass is the same on the International Space Station as it is on earth -a truck loaded with sand accelerates down along a highway. the driving force on the truck remains constant. what happens to the acceleration of the truck as its trailer leaks sand at a constant rate through a hole in its bottom? - -it inc at a steady rate -If an object is in equilibrium, which of the following statements is not true? - -The object must be at rest -If you press a book flat against a vertical wall with your hand, in which direction is the friction force exerted by the wall on the book - -upward -For the child being pulled forward on the tonoggan in the figure below, which of the following is true of the magnitude of the normal force exerted by the ground on the toboggan? - -less than the total weight -Which has greater value, a newton of gold on Earth or a newton of gold on the Moon? - -a newton of Gold on the moon -(T/F) an object can move even when no force acts on it - -True -(T/F) if an object isn't moving, no external forces act on it - -False -(t/F) if a single force acts on an object, the object accelerates - -True -(T/F) if an object accelerates, a force is acting on it - -True -(T/F) if an object isn't accelerating, no external