Work and Energy - concept ICP

Front

What is the definition of work in physics?

Back

Work is defined as the product of force and displacement in the direction of the force. It is calculated using the formula: Work = Force x Distance x cos(θ), where θ is the angle between the force and the direction of motion.

Front

What is energy?

Back

Energy is the capacity to do work. It exists in various forms, including kinetic energy, potential energy, thermal energy, and more.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object 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 potential energy?

Back

Potential energy is the energy stored in an object due to its position or configuration. For example, gravitational potential energy is calculated using the formula: PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

What is an inclined plane?

Back

An inclined plane is a flat surface that is tilted at an angle to the horizontal. It is a type of simple machine that helps to lift heavy objects by reducing the amount of force needed.

Front

What is a pulley?

Back

A pulley is a simple machine that consists of a wheel on an axle or shaft. It is used to change the direction of a force and can also be used to lift heavy objects.

Front

What happens to potential energy as an object moves upward?

Back

As an object moves upward, its potential energy increases due to the increase in height.

Front

What happens to kinetic energy as an object slows down?

Back

As an object slows down, its kinetic energy decreases because kinetic energy is directly related to the speed of the object.

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

What is the relationship between work and energy?

Back

Work is a transfer of energy. When work is done on an object, energy is transferred to that object, resulting in a change in its energy.