1. Balanced and Unbalanced Forces 3PS2-1 prepack Hello boys and girls, Before coming out to the Discovery Zone why not introduce yourself to some of the cool words we will be using.

2. The pushing force of the bat hitting the ball helped the Angels win! force– A force is a push or pull on an object when acting with another object. 3PS2-1 prepack What other pushing forces make a ball move in sports? Soccer kick, football throw, tennis hit

3. “Don’t worry….gravity will return me to Earth,” said Jimmy. gravity - a force which tries to pull two objects toward each other. Earth’s gravity is what keeps you on the ground and what causes objects to fall. 3PS2-1 prepack What’s going to happen to the Bigwheel on the hill after he puts his feet up? What causes that to happen?

4. balanced force – two opposite forces that are equal in size 3PS2-1 prepack Hey, why doesn’t the box move? force 1 = 1 2 1 2 2 1 force 2 2 1 = The size of the forces are the same or balanced

5. unbalanced forces – when two forces acting on an object are not equal in size 3PS2-1 prepack Hey, what happens to the rocket when the forces are unbalanced? Push ForcePush Force gravitygravity Pushing force force from gravity

6. Remember these things when you Come out to the Discovery Zone. We’ll see you soon! 3PS2-1 prepack Balanced and Unbalanced Forces