Work, Power, and Energy Flashcardizz

Front

What is the formula for calculating work?

Back

Work (W) = Force (F) × Displacement (d) × cos(θ), where θ is the angle between the force and displacement.

Front

Define power in the context of physics.

Back

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

Front

How is power calculated?

Back

Power (P) = Work (W) / Time (t).

Front

What is the unit of work?

Back

The unit of work is the joule (J).

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or configuration.

Front

How do you calculate gravitational potential energy?

Back

Gravitational Potential Energy (PE) = mass (m) × gravitational acceleration (g) × height (h).

Front

What is the relationship between work and energy?

Back

Work done on an object results in a change in its energy.

Front

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

Back

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

Front

What happens to power if the time taken to do work is halved?

Back

If the time is halved, the power output is doubled.

Front

What is the work done when lifting an object at constant speed?

Back

The work done is equal to the weight of the object multiplied by the height it is lifted.