Check Point 1.What is a force? 2. To describe a force both the _______________ and the ________________ are needed. 3.Unbalanced forces occur when... 4.Balanced forces are ______________ in size and ________________ in direction. 5._______________ forces do not cause a change in an objects motion.
6. The _________________ of an object is the amount of gravity pulling on it. 7. Look at the diagram below and answer the question that follow: a. What is the net force acting on the box? ________ b. What is the effect of the forces on the box? 10 N 3 N 9 N
8. The Gravity is the force of ___________________ between objects in the universe. 9. What is Universal gravitation? Who came up with it? 10. If the mass of an object increases, gravity will _______________. An object with less mass will have _______________ gravity than an object with greater mass. 11. As the distance between objects increases, the gravity will _____________________. 12. Force is measured using the SI unit _________________.