Energy in Skating 7thA-7thB

When does Potential Energy have the maximum value?

• At the lowest point in a gravitational field
• At the midpoint of a spring's compression
• When an object is in free fall
• At the highest point in a gravitational field or maximum displacement in a spring.

When does Potential Energy have the lowest value?

• At its lowest point in a gravitational field.
• When an object is in motion.
• At its highest point in a gravitational field.
• At the surface of a body of water.

When does Kinetic Energy have the maximum value?

• At the midpoint of its trajectory.
• When the object is at rest.
• At maximum speed or at the lowest point in motion.
• At minimum speed or at the highest point in motion.

When does Kinetic Energy have the lowest value?

• When the object is at rest.
• When the object is experiencing friction with a surface.
• When the object is at its maximum height.
• When the object is in motion at a constant speed.

When do Kinetic and Potential Energy have the same value?

• At the highest point of a pendulum's swing
• When an object is at rest on the ground
• At the midpoint of a pendulum's swing or during free fall just before impact.
• During the initial drop of a free-falling object

What relationship do you find in the bar graphs between potential energy, kinetic energy, and total energy?

• Total energy fluctuates while potential and kinetic energy remain constant.
• Potential energy and kinetic energy are directly related, with total energy varying.
• Potential energy and kinetic energy are inversely related, with total energy remaining constant.
• Kinetic energy is always greater than potential energy, affecting total energy.

What happens to Potential Energy when you move the skater in the simulation?

• Potential Energy remains constant regardless of the skater's height.
• Potential Energy only increases when the skater moves horizontally.
• Potential Energy increases when the skater moves higher and decreases when the skater moves lower.
• Potential Energy is unaffected by the skater's position in the simulation.

At what point in the simulation does the skater have maximum potential energy and at what point does she have minimum?

• Maximum potential energy at the midpoint; minimum potential energy at the start.
• Maximum potential energy at the lowest point; minimum potential energy at the highest point.
• Maximum potential energy at the highest point; minimum potential energy at the lowest point.
• Maximum potential energy during the descent; minimum potential energy during the ascent.

What does potential energy depend on?

• Mass, height (for gravitational potential energy), and the nature of the force field (e.g., gravitational, elastic).
• Speed and distance
• Color and shape
• Temperature and pressure

What does kinetic energy depend on?

• Kinetic energy depends on color and shape.
• Kinetic energy depends on distance and time.
• Kinetic energy depends on mass and velocity.
• Kinetic energy depends on temperature and pressure.