Type of Force: Gravity because that's how it pushes down through the tube.
Type of Energy: Potential because it has a starting height and kinetic because it has a velocity going down through the tube.
Types of Forces: Friction because of the heat and gravity because the marble is being pulled to the ramp.
Types of Energy: Thermal because of the heat from friction, potential because the marble has a height, and kinetic because the marble has movement.
Type of Forces:Normal and Gravity because those two are pulling down the ball
Types of Energy: No type of energy