Q3 Periodic Test - Matatag Physics PDF

POINTS TO PONDER 1. A fric)onal force can prevent slipping from walking. 2. When a spring is hanging with masses on it, the larger the force, the greater the stretch. 3. A force is either a push or a pull. 4. A force can change the speed, direc)on, or shape/size of a moving object. 5. Skyd...

POINTS TO PONDER 1. A fric)onal force can prevent slipping from walking. 2. When a spring is hanging with masses on it, the larger the force, the greater the stretch. 3. A force is either a push or a pull. 4. A force can change the speed, direc)on, or shape/size of a moving object. 5. Skydiver falls toward the due to gravity and air drag 6. Where will the object move based on the diagram? The leopard has Fgrav and Fnorm This free-body diagram can move Up and right 7. An airplane travels at a constant speed, and when it meets turbulence, it causes it to take a different route and change its direc)on. This is Unbalanced though the speed is constant, there is a change in direc)on 8. Any object, aOer traveling a certain distance and it returns to the star)ng point, will have ZERO displacement. 9. A book on a table does not move because the forces of the table pushing up and the gravity pulling down are balanced. 10. The resultant force can be calculated by subtrac)ng the two given forces where the direc)on would be from the greater force. 11. A baseball that has been thrown to home place is an example of unbalanced force 12. A distance can be calculated by adding all the distance being covered by any moving object. b. 13. The SI unit for displacement is METER 14. Velocity, Accelera)on, and Displacement are all VECTORS 15. Distance and )me are the two measurements necessary for calcula)ng speed. 16. Velocity is different from speed because velocity is speed and direc)on This diagram shows Balanced forces and constant speed 17. On a distance vs )me graph, the steeper the slope the faster the speed 18. The rela)onship between velocity and speed in mo)on along a straight line is that velocity equals speed in mo)on along a straight line. 19. The moon orbits the Earth in 28 days at a constant speed and changes its direc)on. 20. A distance vs. )me graph shows an object’s speed The slope means NO MOTION. sta)onary The graph shows that in the first four seconds, the object moves at a steady speed. B and C show that the object STOPS moving, then gains speed again for the last few minutes. 21. The line above is moving in the right direc)on and is posi)ve 22.. Par)cles, when heated, speed up 23. Heat flows from hot to cold 24. When warm air rises and the cool air sinks, this is convec)on 25. A group of friends gathered around a fire to stay warm is an example of radia)on 26. A lizard sidng on a rock to get warm is a conduc)on 27. Your feet touching hot sand is an example of conduc)on 28. As par)cles are exposed to colder temperatures, they slow down 29. An inflated balloon, when placed in a refrigerator, would cause the par)cles to move more slowly and become closer together. 30. Adding heat to mafer causes its par)cles to move faster and farther apart 31. While rubbing your hands together on a cold day, you use fric)on to transform. This transforma)on is Mechanical energy to thermal energy 32. In a car’s internal combus)on engine system, most of the chemical energy from the fuel is transformed into thermal energy. The thermal energy causes the following a. It raises the temperature of the engine b. It leaves the system and enters the surrounding environment c. It is transformed into mechanical energy to move the car 33. What is the short story mostly about? a. About playing bowling c. About how the force works b. About football players d. About baseball players 34. When force is exerted on one side of an object, it causes the object to move. 35. The same amount of force on all sides causes no mo)on. 36. Force cause causes an object to move.