Tiêu đề Chp_09_FORCE AND LAWS OF MOTION...pptx ✅

Can Force be seen ? No !!!! How do you know there is force ? By its effects !!!! effects REST → MOTION 2. MOTION → REST 3 CHANGE IN SPEED 4. CHANGE IN DIRECTION 5. CHANGE IN SHAPE When the ball is kicked ball moves. FORCE (Kick) is used to change from rest to motion The ball is caught by the fielder FORCE (caught) is used to change from motion to rest By stepping brakes / accelerator speed changes FORCE (brakes / accelerator) is used to change the speed. The player hits the ball to change the direction. FORCE (hit) is used to change the direction. FORCE (mould) is used to change shape The potter is molding the clay. Effects of force So the different effects of force are