Work and Energy

Front

What is the definition of work in physics?

Back

Work is defined as the process of energy transfer that occurs when an object is moved over a distance by an external force.

Front

What is energy?

Back

Energy is the capacity to do work or produce change and exists in various forms such as kinetic, potential, thermal, etc.

Front

What is kinetic energy?

Back

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

Front

What is potential energy?

Back

Potential energy is the stored energy of an object based on its position or state, such as gravitational potential energy or elastic potential energy.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses due to its height above the ground, calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is elastic potential energy?

Back

Elastic potential energy is the energy stored in elastic materials as the result of their stretching or compressing.

Front

What is energy conversion?

Back

Energy conversion is the process of changing energy from one form to another, such as converting potential energy to kinetic energy.

Front

At which point in a pendulum's swing is kinetic energy greatest?

Back

Kinetic energy is greatest at the lowest point of the pendulum's swing.

Front

At which point in a pendulum's swing is potential energy greatest?

Back

Potential energy is greatest at the highest points of the pendulum's swing.

Front

What factors affect gravitational potential energy?

Back

Gravitational potential energy depends on the height and mass of the object.