Which of the following best defines work?
Which of the following describes work? Force acts on an object and causes a displacement of that object.
Which statement describes how work and power are similar quizlet?
Answer and Explanation: Work and power are similar in that D. You must know time and energy to calculate both.
Which best defines force ?( 1 point?
A force is a push or pull upon an object resulting from the object's interaction with another object.
Which of the following best defines balanced forces?
Balanced forces are those that are opposite in direction and equal in size. Balanced forces are considered to be in a state of equilibrium. When forces are balanced there is no change in direction. Balance forces cannot change the motion or direction of an object.
Which definition describes work quizlet?
Work occurs when a force acts on an object and causes a displacement of that object.
What is the definition of work in chemistry?
In physical science, such as physics and chemistry, work is force multiplied by distance. Work occurs if there is movement in the direction of the force. The SI unit of work is the joule (J).
Which statement best describes how are work and power are different?
Work is the displacement of an object when a force (push or pull) is applied to it. We define the capacity to do the work as energy. Power is the work done per unit of time.
What is work physics definition?
work, in physics, measure of energy transfer that occurs when an object is moved over a distance by an external force at least part of which is applied in the direction of the displacement.
What is meant by term inertia?
inertia, property of a body by virtue of which it opposes any agency that attempts to put it in motion or, if it is moving, to change the magnitude or direction of its velocity. Inertia is a passive property and does not enable a body to do anything except oppose such active agents as forces and torques.
What three things are necessary for work?
There are three key ingredients to work – force, displacement, and cause. In order for a force to qualify as having done work on an object, there must be a displacement and the force must cause the displacement.
What is an unbalanced force definition?
What are Unbalanced Forces? When the resultant force acting on a body is not equal to zero, the forces acting on the body are known as unbalanced forces. The body acted upon by unbalanced forces changes its state of motion. Let us look at some examples of unbalanced forces to understand their nature better.
Are work and power always equal?
Power and work are always equal. B. You can increase power by doing a given amount of work in a shorter period of time.
What is work in a scientific context quizlet?
Work is when you exert a force on an object that causes the object to move some distance.
How is work defined in science?
Work is the transfer of energy by a force acting on an object as it is displaced. The work that a force does on an object is the product of the magnitude of the force, times the magnitude of the displacement, times the cosine of the angle between them.
How is work definition in thermodynamics?
In thermodynamics, work performed by a system is energy transferred by the system to its surroundings, by a mechanism through which the system can spontaneously exert macroscopic forces on its surroundings. In the surroundings, through suitable passive linkages, the work can lift a weight, for example.
Which statement about work and power correctly describes an automatic race?
Which statement about work and power correctly describes an automobile race? The cars do different amounts of work depending on how fast they finish. The car that finishes last has the lowest power.
What is the same about work and power?
The SI unit of power is the watt. One watt is equal to one joule per second. Power is a scalar quantity….Difference between Momentum and Inertia.
| Work | Power |
|---|---|
| The SI unit of work is Joule (J). | The SI unit of power is Watt (W). |
What does it mean to do work?
exert oneself by doing mental or physical work for a purpose or out of necessity.
What is linear momentum state the law of conservation of linear momentum?
the law of conservation of linear momentum states that if no external forces act on the system of two colliding objects, then the vector sum of the linear momentum of each body remains constant and is not affected by their mutual interaction.
What is the difference between balanced forces and Action Reaction forces?
Balanced forces are equal and opposite forces that act on the same object. That's why they cancel out. Action-reaction forces are equal and opposite forces that act on different objects, so they don't cancel out. In fact, they often result in motion.
What makes your work important?
Being happy at work and loving what you do is an overall productivity booster and enhances performance. People who enjoy their jobs are more likely to be optimistic, motivated, learn faster, make fewer mistakes, and better business decisions.
What is a requirement of doing work?
In order to accomplish work on an object there must be a force exerted on the object and it must move in the direction of the force.
How is inertia related to Newton’s first law of motion?
Newton's first law of motion states that a body at rest remains at rest, or, if in motion, remains in motion at a constant velocity unless acted on by a net external force. This is also known as the law of inertia. Inertia is the tendency of an object to remain at rest or remain in motion.
What does friction mean in science?
friction, force that resists the sliding or rolling of one solid object over another.
What do you understand by work?
Definition of work (Entry 2 of 3) 1 : activity in which one exerts strength or faculties to do or perform something: a : activity that a person engages in regularly to earn a livelihood people looking for work. b : a specific task, duty, function, or assignment often being a part or phase of some larger activity.
What is work in a scientific context?
work, in physics, measure of energy transfer that occurs when an object is moved over a distance by an external force at least part of which is applied in the direction of the displacement.
What is the definition of work quizlet?
Work is when you exert a force on an object that causes the object to move some distance.
What is the definition of work in biology?
(noun) A measure of energy expended by moving an object, usually considered to be force times distance. No work is done if the object does not move.
What is work defined as in physics?
work, in physics, measure of energy transfer that occurs when an object is moved over a distance by an external force at least part of which is applied in the direction of the displacement.
What is the unit for work?
joule Scientists use the joule to measure work. One joule is equal to the work done by a force of one newton to move an object one meter in the direction of the force.