Conservation of Energy Quiz

What is the primary focus of the video tutorial?

• The popularity of skateboarding

• The history of skateboarding

• The conservation of energy

• The design of U-ramps

What is the first assumption made about the system?

• The system is frictionless

• The system is isolated

• The system is open

• The system is closed

What does the color red represent in the bar charts?

• Kinetic energy

• Potential energy

• Thermal energy

• Total energy

What is the significance of setting the coordinate system at the lowest point?

• To increase mechanical energy

• To maximize potential energy

• To minimize kinetic energy

• To define zero potential energy

What does mechanical energy consist of in this scenario?

• Potential and chemical energy

• Kinetic and thermal energy

• Kinetic and potential energy

• Thermal and potential energy

What happens to potential energy as the skateboarder descends the ramp?

• It increases

• It disappears

• It remains constant

• It decreases

At the lowest point of the ramp, what is true about the skateboarder's energy?

• Potential energy is at its maximum

• Kinetic energy is at its maximum

• Mechanical energy is zero

• Potential energy is equal to kinetic energy

What happens to kinetic energy as the skateboarder ascends the ramp?

• It disappears

• It decreases

• It remains constant

• It increases

What is the law of conservation of energy as described in the video?

• Energy is always decreasing

• Energy changes equal zero for mechanical energy

• Energy can be created or destroyed

• Energy is always increasing

What is the relationship between potential and kinetic energy in an isolated system?

• They are independent of each other

• They are inversely proportional

• They are always equal

• Their sum remains constant