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