Energy in Motion and Rest: Comparing Potential and Kinetic Energy

Ms. Washington explains the differences between potential and kinetic energy using a T-chart. Potential energy is described as energy that is not moving but has the potential to move, influenced by height and mass. Kinetic energy is defined as energy in motion, affected by speed and mass. Examples include comparing a ball on a hill to one at the bottom for potential energy, and a snail versus a cheetah for kinetic energy. The video concludes with a summary of these concepts and encourages students to use the notes for further questions.

What is the main characteristic of potential energy?

• It is the energy of light.

• It is the energy of sound.

• It has the potential to move but is not moving.

• It is always in motion.

Which of the following best describes kinetic energy?

• Energy that is potential.

• Energy that is in motion.

• Energy that is not moving.

• Energy that is stored.

What factor increases potential energy?

• Increasing speed.

• Decreasing height.

• Decreasing mass.

• Increasing height.

Which object has more potential energy: a flower or a brick?

• A flower, because it is lighter.

• It depends on the color of the object.

• A brick, because it has more mass.

• Both have the same potential energy.

What happens to kinetic energy as an object's speed increases?

• It turns into potential energy.

• It increases.

• It remains the same.

• It decreases.

Which has more kinetic energy: a snail or a cheetah?

• It depends on the color of the animal.

• A snail, because it is slower.

• Both have the same kinetic energy.

• A cheetah, because it moves faster.

If a truck and a sports car are both moving at 50 mph, which has more kinetic energy?

• It depends on the color of the vehicle.

• The truck, because it has more mass.

• The sports car, because it is faster.

• Both have the same kinetic energy.

What is the relationship between mass and kinetic energy?

• Kinetic energy is only affected by speed.

• More mass means more kinetic energy.

• More mass means less kinetic energy.

• Mass does not affect kinetic energy.

How does height affect potential energy?

• Higher height decreases potential energy.

• Higher height increases potential energy.

• Potential energy is only affected by mass.

• Height does not affect potential energy.

What is the key difference between potential and kinetic energy?

• Kinetic energy is stored, potential is not.

• Potential energy is always moving, kinetic is not.

• Potential energy is stored, kinetic is in motion.

• There is no difference between them.