Work and Energy Flashcard

Front

What is work in physics?

Back

Work is defined as the product of the force applied to an object and the distance over which that force is applied, measured in joules (J).

Front

How is work calculated?

Back

Work (W) = Force (F) × Distance (d) × cos(θ), where θ is the angle between the force and the direction of motion.

Front

What is energy?

Back

Energy is the ability to cause change or do work, measured in joules (J).

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 gravitational potential energy (GPE)?

Back

Gravitational potential energy is the energy an object possesses due to its position in a gravitational field, calculated as GPE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is the principle of conservation of energy?

Back

The principle 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 done on an object results in a change in its energy. If work is done on an object, its energy increases.

Front

What is the formula for calculating kinetic energy?

Back

Kinetic Energy (KE) = 1/2 mv², where m is mass and v is velocity.

Front

What is the formula for calculating gravitational potential energy?

Back

Gravitational Potential Energy (GPE) = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

What is power in physics?

Back

Power is the rate at which work is done or energy is transferred, measured in watts (W).