POE S1 Final

Team 6's compound machine lifted a weight of 9.81 N up 0.56 meters in 3.01 seconds. How much WORK was done? RT 0.1

How much work would YOU do if you just lifted the weight up with your arm, compared to team 6's compound machine?

• more work
• less work
• the same amount of work

Team 6's compound machine lifted a weight of 9.81 N up 0.56 meters in 3.01 seconds. How POWERful was their machine? RT 0.1

If you were able to lift up the weight with your arm in 1 second, how does that power compare to Team 6's compound machine?

• human is less powerful compared to the machine
• human is more powerful compared to the machine
• they are both equally as powerful

What class of lever is it?

• First
• Second
• Third

What is the ideal mechanical advantage of the wheelbarrow? RT 0.1

How does using the wheelbarrow feel compared to no simple machine?

• Easier
• Harder
• No change

What is the IMA of this system? RT 1

You figure you apply about 6.8N to the pull string. If there were no friction, what force would be applied to the weight you are lifting? RT 0.1

Of course, you know that there is definitely friction involved. This means that

• the AMA will be smaller than the IMA
• the IMA will be smaller than the AMA
• it doesn't matter and the AMA is the same as the IMA