Kinetic & Potential Energy

Skier 1 will have a greater potential energy because potential energy is directly proportional to the height of an object. If Skier 1 is at a higher elevation than Skier 2, then Skier 1 will have a greater potential energy.

Energy is the correct answer because it is the capacity or ability to do work or cause change. Energy can exist in various forms such as kinetic energy (energy of motion), potential energy (stored energy), thermal energy (heat energy), and many others. It is a fundamental concept in physics and is essential for any type of work or change to occur in the universe.

When a rubber band is stretched all the way back, it stores potential energy due to its ability to return to its original shape when released. This potential energy is known as elastic potential energy, as it is stored within the rubber band's elasticity.

Kinetic energy is the energy possessed by an object due to its motion. It depends on the mass of the object and its velocity. The faster an object moves or the heavier it is, the more kinetic energy it has. In contrast, elastic potential energy refers to the energy stored in an object when it is compressed or stretched, and gravitational potential energy refers to the energy an object possesses due to its position in a gravitational field. Therefore, the correct answer is kinetic energy.

The explanation for the given correct answer is that the law of conservation of energy states that energy cannot be created or destroyed, but can only be transformed from one form to another. This means that the total amount of energy in a closed system remains constant. Therefore, when one form of energy is transformed into another, the total amount of energy in the system remains the same.

Potential energy is the correct answer because it refers to the stored energy that an object possesses due to its position or shape. This energy has the potential to be converted into other forms of energy, such as kinetic energy, when the object is in motion. Thermal energy, on the other hand, refers to the energy associated with the temperature of an object.

The pendulum experiences the greatest potential energy at points A and D. At these points, the pendulum is at its highest positions, where it has the maximum potential energy due to its height above the reference point.

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If both balls are traveling at the same speed, the ball with more kinetic energy would be the one with greater mass. This is because kinetic energy is directly proportional to mass. Therefore, Ball A, which is not specified in terms of mass, would have more kinetic energy than Ball B.

Mass and velocity are the factors that affect kinetic energy. Kinetic energy is directly proportional to mass and velocity. An object with a larger mass or a higher velocity will have a greater kinetic energy. Time, on the other hand, does not directly affect kinetic energy. Therefore, the correct factors that affect kinetic energy are mass and velocity.

A pendulum will eventually slow down and stop because of friction. Friction is a force that opposes motion and it acts between the pendulum bob and the air or the surface it is swinging on. As the pendulum swings back and forth, the frictional force gradually reduces its kinetic energy, causing it to slow down. Eventually, the pendulum comes to a stop due to the continuous loss of energy to friction.

The coaster will experience the greatest kinetic energy at Point B. This is because kinetic energy is directly proportional to both mass and velocity. At Point B, the coaster has the highest velocity due to the acceleration from the downward slope. Therefore, the coaster will have the greatest kinetic energy at this point.

When a basketball bounces and hits the ground, it is demonstrating elastic potential energy. Elastic potential energy refers to the energy stored in an object when it is compressed or stretched. In this case, as the basketball hits the ground, it gets compressed momentarily, storing potential energy. This potential energy is then converted into kinetic energy as the basketball rebounds and bounces back up. Therefore, the correct answer is elastic.