4. Experiment and explain finding the force of the force. Two forces at an angle. 5. Write a diagram of the force exerted on the object. Freedom, experiment and explain the laws of motion. Newton's and his application of the laws of motion. Newton and the state of motion of objects, including calculate the amounts involved 6. Explain the universal law of gravity and the results of The gravitational field that makes objects weigh, including calculate the amounts involved 7. analyze, explain, and calculate friction Between the contact surfaces of a pair of objects in the case Where objects are stationary and moving objects include: experiment with the coefficient of friction Between the contact surfaces of a pair of objects and the lead Knowledge of friction applies to life. Every day.