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Work & Simple Machines
Test Description: Work and Simple Machines
Instructions: Answer all questions to get your test result.
1) When a force causes a change in the position of an object, it is true that which of the following has also taken place?
A
Energy has been taken away.
B
Energy has been stored.
C
Energy has been transferred.
D
Energy has been created.
2) ________ is the ability to do work.
A
Newtons
B
Force
C
Gravity
D
Energy
3) Which of the following is NOT an example of work being done on an object?
A
A boy pushes the lawn mower across the yard.
B
A mover pulls a large box to the other side of the room.
C
A girl holds the grocery bag for her father.
D
Students move their desks into groups.
4) In order for work to be done on an object, what requirement has to be met?
A
The object is carried.
B
Force is applied.
C
Force moves the object.
D
Energy is used.
5) If an object is too heavy to move up a ramp, the best way to fix the problem?
A
Increase the elevation of the ramp.
B
Increase the steepness of the ramp.
C
Increase the length of the ramp.
D
Increase the friction of the ramp.
6) Simple machines do which of the following?
A
Reduce the amount of force required to move the object.
B
Reduce the mass of the object to be moved.
C
Reduce the distance the object is moved.
D
Reduce the amount of work needed to move the object.
7) Which of these could be considered an inclined plane wrapped around a cylinder?
A
crane
B
ramp
C
axe
D
screw
8) Hugh used a ramp to load boxes on a truck. For the work he had to do, the ramp decreased
A
the distance he had to travel.
B
the height he had to travel.
C
the time it took to pack the boxes.
D
the force he had to apply.
9) Which simple machine would allow a person to lift a heavy weight by pulling down on a rope?
A
pulley
B
lever
C
wedge
D
inclined plane
10) Marcus is going to use the claw end of the hammer to pull a large nail out of a board. Which hammer will help him do this take with the least effort?
A
one with a long handle and a large claw
B
one with a short handle and a short claw
C
one with a short handle and a large claw
D
the amount of effort does not change with hammer design
*select an answer for all questions
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