Flashcard Physics

Front

What is the formula for calculating work done?

Back

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

Front

Define Kinetic Energy.

Back

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

Front

What is Gravitational Potential Energy?

Back

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

Front

How do you calculate the distance moved if work and force are known?

Back

Distance (d) = Work (W) / Force (F).

Front

What is the unit of work in the International System of Units (SI)?

Back

The unit of work is the Joule (J).

Front

What is the relationship between work and energy?

Back

Work done on an object results in a change in energy of that object.

Front

What is the significance of the angle in the work formula?

Back

The angle θ affects the amount of work done; work is maximized when the force is applied in the direction of motion (θ = 0°).

Front

If a force is applied at an angle, how do you find the effective force doing work?

Back

Effective Force = F × cos(θ), where F is the applied force and θ is the angle between the force and the direction of motion.

Front

What is the difference between potential energy and kinetic energy?

Back

Potential energy is stored energy based on position, while kinetic energy is energy of motion.

Front

How does mass affect gravitational potential energy?

Back

Gravitational potential energy increases with mass; doubling the mass doubles the potential energy at the same height.