Force and Motion part 2

QuizÂ by Tammy Wong-Benson

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10 questions
• Q1
A ramp makes it easier to move a heavy object over a certain distance. Which of the following statements explains how?
It decreases the amount of work required to move the object.
It decreases the distance the object travels
It decreases the amount of force required to move the object.
120s
• Q2
Which pulley system will allow the armchair to be lifted with the least amount of effort?
B
D
C
A
120s
• Q3
A roofer tries to use a pulley system, like the one shown above, to lift his materials to the roof. He needs the pulley system because he cannot carry the heavy materials up the ladder. The roofer finds that the force required to lift the materials using this pulley is too great. He cannot apply enough force on the rope to lift the materials.
A
c
D
B
120s
• Q4
A student records the following data when using different pulley systems to lift an object with a weight of 24 Newtons to the height of 1.5 meters. Which pulley system required the student to pull on the rope for the greatest distance in order to lift the object 1.5 meters?
Z
W
Y
X
120s
• Q5
Which of the following statements best describes the situations?
More force will be needed to move the box in Situation 2.
Less force will be need to move the box in situation 1.
Less force will be needed to move the box in Situation 2.
It will take the same about of force to move both boxes.
120s
• Q6
If you need to move furniture into a van, why would it be easier to use an inclined plane than to just lift the furniture into the van?
The inclined plane decreases the weight of the furniture.
The inclined plane decreases the amount of friction present.
The inclined plane decreases the force of gravity that needs to be overcome.
The inclined plane decreases the amount of force needed to move the furniture?
120s
• Q7
Which of the following is a reasonable conclusion you can make from the data in the chart?
the simple machine allows us to use more force when doing work.
Spring scales should always be used to lift bricks.
The simple machine allows us to use more force when doing work.
Simple machine allows us to use less force when doing work.
120s
• Q8
A student wants to lift a heavy object with a pulley. Which pulley arrangement would require the least amount of force.
D
C
A
B
120s
• Q9
Which of the explanation best describes what is happening in the picture above?
the mass of the box is being moved to the right
the amount of force required to move the box has changed
The direction of force required to move the box has changed
120s
• Q10
A student investigates pulley systems. He finds that he can set up two different pulley systems using 3 pulleys. His pulley systems are shown above. He designs the data table shown to record the force required to lift the mass to a height of 0.5 meters using the two pulley systems. What conclusion will he most likely make after completing the investigation?
Pulley system 2 required more force than pulley system 1 to lift the object.
Pulley 1 requires more force that pulley 2 to lift the object.
Pulley system 1 requires the same amount of force as no pulley system to lift the object.
Both pulley systems require the same amount of force to lift the object.
120s

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