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- 1. Multiple Choice
Which of the following are examples of simple machines?
calculator
door knob
flag pole
fireplace
- 2. Multiple Choice
Where on a bicycle might you find a pulley?
the gears
the handlebars
the seat
the tires
- 3. Multiple Choice
Let's say you wanted to use a pulley to lift a flag up a flagpole. If you wanted to lift the flag 10 meters in the air, how far would you have to move the rope?
5 meters
10 meters
15 meters
20 meters
- 4. Multiple Choice
A pulley contains which other simple machine?
a screw
an inclined plane
a lever
a wheel and axle
- 5. Multiple Choice
What is the effort force?
the force that you apply to a simple machine
the weight of the load that the simple machine moves
the distance that the simple machine moves the load
the amount of effort it takes to construct a simple machine
- 6. Multiple Choice
What is the force exerted by the load being lifted called?
the actual force
the resistance force
the effort force
the strong force
- 7. Multiple Choice
In a simple pulley, what is the relationship between the effort and resistance forces?
the effort force is smaller than resistance force
the effort force is larger than resistance force
the effort force outweighs the resistance force
they are equal
- 8. Multiple Choice
What objects can't you lift if you are using a single-pulley system?
very large objects
oddly-shaped objects
very tall objects
objects that are heavier than you
- 9. Multiple Choice
Let's say you had a pulley system with a mechanical advantage of 3. If you want to lift a boulder 10 meters off the ground, how far would you have to pull the rope?
3 meters
10 meters
30 meters
300 meters
- 10. Multiple Choice
It's easier to lift heavy objects with a double-pulley system because:
The effort force is twice as much as the resistance force.
The effort force is one-half as much as the resistance force.
The effort force is three times as much as the resistance force.
The resistance force and effort force are equal.
- 11. Multiple Choice
Which one is an example of a pulley system?
an ax
a ramp
an elevator
a see-saw
- 12. Multiple Choice
What term is used to mean the object that is being moved by a machine?
pulley
effort
fulcrum
load
- 13. Multiple Choice
What unit is used to measure force?
meter
centimeter
Newton
gallon
- 14. Multiple Choice
What is a pulley system?
A simple machine that consists of a wheel and a rope
A simple machine that consists of a board and a rope
A simple machine that uses a wedge
A simple machine with a wheel and a lever
- 15. Multiple Choice
A ladder is a pulley system.
True
False
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