How can you change the direction of a ball? Explain how you know if a force has been exerted on a ball? What force keeps us here on the ground? What happens if you kick the ball hard vs. softly?

Give an example of a contact and non-contact force. Explain how the amount of force affected the marble and how you were able to change the force. How was the energy transferred from the black to red marble? Why was it too hard to make the marble go up the inclined plane and what was the solution? How did a magnet affect the marble? Explain how energy moves from potential energy to kinetic energy.