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Allen pushes hard against a heavy box until he is exhausted. What is the reason science says that he has done no work?
A girl holds the grocery bag for her mother
going in the opposite direction of
The box has not moved
holding a set of weights up over the head
Force must be applied; the object must move
energy
energy
the object must move some distance as a result of a force
When we see work being done, we see evidence of
A girl holds the grocery bag for her mother
going in the opposite direction of
The box has not moved
holding a set of weights up over the head
Force must be applied; the object must move
energy
energy
the object must move some distance as a result of a force
Work is being done on an object in all of the following situations EXCEPT
A girl holds the grocery bag for her mother
going in the opposite direction of
The box has not moved
holding a set of weights up over the head
Force must be applied; the object must move
energy
energy
the object must move some distance as a result of a force
When force is __________ motion, no work is done.
A girl holds the grocery bag for her mother
going in the opposite direction of
The box has not moved
holding a set of weights up over the head
Force must be applied; the object must move
energy
energy
the object must move some distance as a result of a force
When work is being done as a shopping cart is moved through the store, this is also evidence of
A girl holds the grocery bag for her mother
going in the opposite direction of
The box has not moved
holding a set of weights up over the head
Force must be applied; the object must move
energy
energy
the object must move some distance as a result of a force
What two factors are required for work to be done?
A girl holds the grocery bag for her mother
going in the opposite direction of
The box has not moved
holding a set of weights up over the head
Force must be applied; the object must move
energy
energy
the object must move some distance as a result of a force
For work to be done on an object, such as pushing a child on a swing,
A girl holds the grocery bag for her mother
going in the opposite direction of
The box has not moved
holding a set of weights up over the head
Force must be applied; the object must move
energy
energy
the object must move some distance as a result of a force
All of the following support the fact that work is being done on an object EXCEPT
A girl holds the grocery bag for her mother
going in the opposite direction of
The box has not moved
holding a set of weights up over the head
Force must be applied; the object must move
energy
energy
the object must move some distance as a result of a force
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