Motion Flipped Lesson #7

Key Understandings Changes in motion can be measured and graphically represented. Forces cause changes in position, speed, and direction.

What is motion anyway? Motion is a change in position, which is measured by distance and time. Anything moving is in motion.

What changes motion? A force is a push or pull that can change motion. A force can move an object. A force can transfer energy to an object. For example, pushing on a wall doesn’t move the wall, but energy is being transferred.

Unbalanced Forces In order for a force to move an object, there must be unbalanced forces. Like tug of war…the winners are pulling the other team with more force; therefore, the pulling forces are unbalanced.

How can force affect motion? Resistance forces (friction or wind) that oppose motion can slow down motion. A force in the same direction can speed up motion.

Speed We talk about speed everyday. Speed is the distance traveled by a moving object per unit of time. Speed affects the energy of an object. The faster it moves, the more kinetic energy it has.

Friction Friction is a force that opposes motion. It can be caused by wind, water, surface texture, etc.

Resistance Force Have you ever ridden down the street on your bike and felt the wind push against you? That’s air resistance! Air resistance is the frictional force from the air that resists forward motion.

Brain POP! - Force Go to this website and watch the brainpop clip about Force. http://www.brainpop.com/science/motionsforcesandtime/force/ No quiz this time! But I do want you to write about one thing that you learned from the video in your own words. 