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Energy Is Work!
Test Description: Energy is work!
Instructions: Answer all questions to get your test result.
1) For work to be done on an object, such as pushing a child on a swing,
A
the object must move some distance as a result of a force
B
the object must move, whether or not a force is applied
C
some force need only be applied to the object
D
the object must move a distance equal to the amount of force applied to it
2) When work is being done as a shopping cart is moved through the store, this is also evidence of
A
magnetism
B
heat transfer
C
conservation
D
energy
3) When we see work being done, we see evidence of
A
simple machines
B
transformation
C
speed
D
energy
4) For a machine to actually do work on an object, the object must
A
move, whether or not a force is applied to it
B
have a force applied to it
C
move some distance as a result of a force
D
move a distance equal to the amount of force applied to it
5) Work is being done on an object in all of the following situations EXCEPT
A
A student pulls a desk to the other side of the room
B
A girl holds the grocery bag for her mother
C
A boy pushes his bicycle down the driveway
D
The children move their mats to the center of the room
6) When force is __________ motion, no work is done.
A
going in the opposite direction of
B
going in a sideways direction from
C
going in the same direction of
D
going in a downward direction from
7) The SI unit that is used for measuring force on a spring scale is the
A
meter
B
gram
C
newton
D
liter
8) All of the following support the fact that work is being done on an object EXCEPT
A
sliding a box across the floor
B
lifting a stereo into the back of a truck
C
pushing a lawnmower across the yard
D
holding a set of weights up over the head
9) Allen pushes hard against a heavy box until he is exhausted. What is the reason science says that he has done no work?
A
The force on the box is too small
B
The box has not moved
C
No energy has been used
D
There has been no force applied
10) What two factors are required for work to be done?
A
Force must be applied; the object must move
B
Force must be applied; the object must be held
C
Energy must be applied; a tool must be used
D
Energy must be transfered; force must be used
*select an answer for all questions
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