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Umm I really don't know but let me think tho
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∙ 11y ago
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How can you tell if work is being done on an object?
The object may move against a force, for example be raised against gravity, or it may accelerate ie go faster, or it may get warmer for example by friction.
When is work said to be done against the force of gravity?
All bodies with mass are attracted to the Earth by gravity, so when a body is raised you must do work to raise it. This work is equal to force x height, if force is in Newtons and height in meters, the work is in units of Joules.
What is the work done against the gravity when a body is moved horizontally along a frictionless surface?
force?
What type of work is being done when pushing?
1) When you push an object on a flat surface work is being done against the force of friction (and air resistance). Work is calculated by the formula: Work = Force applied x distance moved in the direction of the force 2) When you push a spring to compress it, you are doing work against its stiffness In this case, Work = Force applied x 0.5 x decrease in length of spring 3) When you push something vertically upwards, you are working against gravity Here, Work = mass x earth's gravity x height raised
Is friction produced when work is done?
No.
Why when you push an object across a desk the work done is not equal to the change in gravitational potential energy?
In this case, you are not doing work against the force of gravity, but against the force of friction.
How do you know when work is being done and when its not?
The object may move against a force, for example be raised against gravity, or it may accelerate ie go faster, or it may get warmer for example by friction.
How can you tell if work is being done on an object?
The object may move against a force, for example be raised against gravity, or it may accelerate ie go faster, or it may get warmer for example by friction.
What is a sign that work is being done?
The object may move against a force, for example be raised against gravity, or it may accelerate ie go faster, or it may get warmer for example by friction.
When is work said to be done against the force of gravity?
All bodies with mass are attracted to the Earth by gravity, so when a body is raised you must do work to raise it. This work is equal to force x height, if force is in Newtons and height in meters, the work is in units of Joules.
What is the work done against the gravity when a body is moved horizontally along a frictionless surface?
force?
What type of work is being done when pushing?
1) When you push an object on a flat surface work is being done against the force of friction (and air resistance). Work is calculated by the formula: Work = Force applied x distance moved in the direction of the force 2) When you push a spring to compress it, you are doing work against its stiffness In this case, Work = Force applied x 0.5 x decrease in length of spring 3) When you push something vertically upwards, you are working against gravity Here, Work = mass x earth's gravity x height raised
Can a coin have gravity power?
Any mass raised above the earth's surface has potential energy due to the work done in raising it against gravity
Is friction produced when work is done?
No.
What is the formula for work done against gravity?
Work Done = Force x Distance = Power / Time = (Force x speed)/Time
Is there any work done when a person takes a bucket to some distance?
The question is incomplete. If the bucket is taken in a horizontal plane then no work is done If the bucket is taken in an inclined plane then work has to be done against force of gravity
Can work be done by friction?
Yes because work=friction ×distance
