How is a joule defined?(1 point)
Responses
It is the work done when a force of 1 newton is applied to accelerate an object by 1 kilogram per second squared.
It is the force needed to make an object with a mass of 1 kilogram accelerate by 1 kilogram per second squared.
It is the force needed to make an object with a mass of 1 kilogram travel 1 meter.
It is the work done when a force of 1 newton is applied to an object for a distance of 1 meter.
It is the work done when a force of 1 newton is applied to an object for a distance of 1 meter.
The correct answer is:
It is the work done when a force of 1 newton is applied to an object for a distance of 1 meter.
The correct answer is:
"It is the work done when a force of 1 newton is applied to an object for a distance of 1 meter."
To understand why this is the definition of a joule, we need to understand the concept of work and how it relates to force and distance.
Work is defined as the force applied to an object multiplied by the distance over which the force is applied. In other words, work is done when a force is exerted on an object and it is moved a certain distance in the same direction as the force.
In the case of the joule, it specifically refers to the work done when a force of 1 newton is applied to an object for a distance of 1 meter. This means that if you exert a force of 1 newton on an object and move it a distance of 1 meter in the same direction as the force, then you have done 1 joule of work.
The other options mentioned in the question are not the correct definition of a joule. Option 1 refers to the acceleration of an object, which is not directly related to work. Option 2 refers to the force needed to make an object accelerate, but it doesn't mention the distance over which the force is applied. Option 3 refers to the force needed to make an object travel a certain distance, but it doesn't mention the work done by that force.
Therefore, the correct definition of a joule is the work done when a force of 1 newton is applied to an object for a distance of 1 meter.