E-4 Flashcard

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion. It is calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

Front

What is elastic potential energy (EPE)?

Back

Elastic potential energy is the energy stored in elastic materials as the result of their stretching or compressing. It is released when the material returns to its original shape.

Front

How does mass affect kinetic energy?

Back

The kinetic energy of an object increases with its mass. A heavier object moving at the same speed as a lighter object will have more kinetic energy.

Front

What happens to elastic potential energy when a spring is compressed?

Back

When a spring is compressed, its elastic potential energy increases as it stores energy. When released, this energy converts to kinetic energy.

Front

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

Back

In a closed system, the total energy (kinetic + potential) remains constant, but energy can transform from one form to another.

Front

What occurs to the energy in a system when an object makes contact with a spring?

Back

When an object makes contact with a spring, the energy transferred to the spring can be greater than the energy left in the system after the contact.

Front

What happens to the elastic potential energy of a rubber band when it is released?

Back

The elastic potential energy of a rubber band decreases as it converts to kinetic energy when the band is released.

Front

What is the principle of conservation of energy?

Back

The principle of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

How does the height of a jump relate to kinetic energy?

Back

The height of a jump is related to kinetic energy; a higher jump indicates greater kinetic energy at the moment before takeoff.

Front

What is the effect of stretching a trampoline on potential energy?

Back

Stretching a trampoline increases its elastic potential energy, which can be converted to kinetic energy when a jumper lands.