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- 1. Multiple Choice
________________ is done whenever a force moves an object a distance.
Load
Friction
Force
Work
- 2. Multiple Choice
How can simple machines make work easier?
by decreasing the force needed to complete the task
by increasing the friction between the machine and the object
by adding more work on the object than originally applied
by removing the force of gravity on the object
- 3. Multiple Choice
Simple machines can make work easier by reducing the input force needed to move an object. However, there is a trade off for decreased input. What is the trade off?
The distance the object is moved is increased.
The distance the object is moved is decreased.
The amount of work is increased.
The amount of work is decreased.
- 4. Multiple Choice
A doorknob is an example of a _______.
wheel and axle
inclined plane
pulley
wedge
- 5. Multiple ChoiceWhich type simple machine would the base of a light bulb be?screwwedgewheel and axlepulley
- 6. Multiple Choice
The fixed point around which a lever rotates is know as the
wheel.
fulcrum.
input force.
output force.
- 7. Multiple Choice
A simple machine that splits an object apart is a _______.
inclined plane
fulcrum
wedge
lever
- 8. Multiple Choice
A ramp is an example of a(n) _______.
inclined plane
fulcrum
force
lever
- 9. Multiple Choice
Which simple machine would be the MOST efficient for lifting an object 30 meters off the ground?
pulley
screw
wedge
lever
- 10. Multiple Choice
The bow or front of a boat splits the water as the boat moves. What kind of simple machine would the bow of the boat be?
wedge
screw
ramp
lever
- 11. Multiple Choice
Using the back of a hammer makes it much easier to remove a nail from a wooden board. What kind of simple machine would the hammer be classified as if you are using it for this purpose?
Wedge
Lever
Pullye
Inclined Plane
- 12. Multiple Choice
Which of the following is NOT an example of the simple machine know as a screw?
the lid of a jar
a bolt
a drill bit
a crowbar
- 13. Multiple Choice
A tool with only a few parts that helps you do work is called a
simple machine
complex machine
axle
fulcrum
- 14. Multiple Choice
Two inclined planes together that helps push things apart.
pulley
wedge
gear
lever
- 15. Multiple Choice
Which of the following is NOT a complex machine?
bicycle
ramp
can opener
wheel barrow
- 16. Multiple Choice
A seesaw is what simple machine?
lever
inclined plane
pulley
gear
- 17. Multiple Choice
A complex machine is:
the same as a single simple machine
two simple machine only
two or more simple machines
four simple machine
- 18. Multiple Choice
A wheelbarrow is an example of a complex machine. Which simple machine is NOT found in this object?
lever
wedge
wheel and axle
- 19. Multiple ChoiceWhat is the unit of measurement for work?NewtonsJoulesWattsMeters
- 20. Multiple ChoiceMechanical advantage is a measure of how much a machine multiplies the inputefficiency.force.power.work.
- Answer choicesTagsAnswer choicesTags