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When a force is exerted on an object work is done only if the object?
Wiki User
∙ 10y ago
Only if the object moves
Wiki User
∙ 10y ago
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Is work done every time forces are exerted on an object?
No. Only when there is also movement. The basic formula for work is: work = force x distance If a certain force is applied along a certain distance, then work is done.
Does a change in motion occur only if a net force is exerted on an object?
No. Changes in motion can occur in other ways. A change in motion can occur if that object exerts a net force on another object, like another ball on a billiard table. The object could also bump into an immovable object and its motion would change.
Do objects accelerate only when a force is exerted upon it?
yes
True or false work is done only when an object moves in the direction of the applied force?
true!
When the only force affecting an objects is gravity that object is an?
When the only force on an object is the force of gravity,we say that the object is in "free fall".
Is work done every time forces are exerted on an object?
No. Only when there is also movement. The basic formula for work is: work = force x distance If a certain force is applied along a certain distance, then work is done.
What is the force exerted by the object you are trying to move?
Its a reaction force, and is equal and opposite to your force, only it is acting on different objects, so the force is still unbalanced.
Do action and reaction forces cancel each other?
Yes and no. They are equal in size and opposite in direction, but they are NOT exerted onto the same object. Each object exerts exactly one force and each object RECEIVES exactly one force. With only one force being exerted onto each object, there is nothing to be cancelled on each single object. Thus, they do not cancel, they simply exert themselves on different objects.
How does pressure exerted by a solid object on a surface differ from pressure exerted within a liquid or a gas?
The pressure exerted by a solid object is in only one direction.
How does pressure exerted by a solid object on a surface differ from pressure exerted within a gas or liquid?
The pressure exerted by a solid object is in only one direction.
When a car speeds up does the drag increase or decrease?
as an object accelerates, the amount of drag exerted on it increases. This means that more force is necessary to sustain the same level of acceleration. If that external force is increasing, as in a car or plane, then the object can be accelerated well past its terminal velocity. If, however, the only force being exerted on it is the force of gravity, then eventually the drag will become as great as the static force of gravity, and the object will cease to accelerate.
When force is to the direction of motion no work is done?
No. Only if you are applying the same amount of force then there is no motion. If you are applying more force (the object is moving) then there is work being done.
What is the force of gravity on an object's mass?
None, an objects mass (how much stuff there is as measured in kg and g or lb and oz if your old fashioned) is constant, no matter where it is in the universe.Gravity affects weight. The amount of gravity changes how much force (weight) is exerted on an object of a specific mass.E.g., on Earth, a 1kg object has a weight force of 10N towards the centre of the planet.On the Moon, the same 1kg object only has a 1.6N force exerted on it towards the centre, because the Moon has a weaker gravitational field than Earth.
Does a change in motion occur only if a net force is exerted on an object?
No. Changes in motion can occur in other ways. A change in motion can occur if that object exerts a net force on another object, like another ball on a billiard table. The object could also bump into an immovable object and its motion would change.
If two objects have an equal mass does a more dense object have a greater gravitational pull?
No. The gravitational force exerted by one massive object on others depends only on its mass. So long as you are outside of the object, its density is irrelevant.
Do objects accelerate only when a force is exerted upon it?
yes
When the only force affecting an object is gravity that object is?
When the only force on an object is the force of gravity,we say that the object is in "free fall".
