Answer:
Gravity and friction actually have a lot to do with motion and energy! Gravity affects motion in a few different ways. First, it can affect the speed and direction of a moving object. Second, it can cause an object to accelerate (change speed) as it falls towards the ground. And finally, it can help an object stay in orbit around another object. Friction, on the other hand, affects motion by creating a force that opposes the motion of an object. This force can cause an object to slow down or stop moving altogether. Both gravity and friction have a big impact on how energy is transferred and used in a system.