Work Problems Flashcard

Front

What is the formula for calculating work done?

Back

Work (W) is calculated using the formula W = F × d, where F is the force applied and d is the distance moved in the direction of the force.

Front

If a force of 50 N is applied to move an object 5 m, how much work is done?

Back

The work done is 250 J, calculated as W = 50 N × 5 m.

Front

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

Back

The unit of work is the Joule (J).

Front

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

Back

Distance (d) can be calculated using the formula d = W / F, where W is the work done and F is the force applied.

Front

What is the relationship between work, force, and distance?

Back

Work is the product of the force applied to an object and the distance over which that force is applied.

Front

Define work in the context of physics.

Back

Work is defined as a force acting over a distance to cause a change in energy.

Front

If 150 Joules of work is needed to move a box 10 meters, what force was used?

Back

The force used is 15 N, calculated as F = W / d = 150 J / 10 m.

Front

What does it mean if no work is done on an object?

Back

No work is done if the object does not move, or if the force applied is perpendicular to the direction of motion.

Front

How far does a car that weighs 5,000 N go if 18,000 J of work is done on it?

Back

The car goes 3.6 m, calculated as d = W / F = 18,000 J / 5,000 N.

Front

What is the significance of the angle between force and displacement in work calculation?

Back

The angle affects the amount of work done; work is maximized when the force is in the same direction as the displacement.