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What is the work done by a simple machines on an object?
A bodybuilder lifts a dumbell weighing 20N.
work input
it must increase
mechanical advantage
False. Simple machines make work easier by creating a trade-off between force and distance.
work output
friction
the distance the barbell is being lifted
If a barbell weighs 160 N, what other information do you need to have to calculate how much work it takes to lift it?
A bodybuilder lifts a dumbell weighing 20N.
work input
it must increase
mechanical advantage
False. Simple machines make work easier by creating a trade-off between force and distance.
work output
friction
the distance the barbell is being lifted
True or false? When you use a simple machine, you do less work.
A bodybuilder lifts a dumbell weighing 20N.
work input
it must increase
mechanical advantage
False. Simple machines make work easier by creating a trade-off between force and distance.
work output
friction
the distance the barbell is being lifted
What is the number of times a simple machine multiplies force?
A bodybuilder lifts a dumbell weighing 20N.
work input
it must increase
mechanical advantage
False. Simple machines make work easier by creating a trade-off between force and distance.
work output
friction
the distance the barbell is being lifted
When a simple machine allows you to apply a small input force, what happens to the distance that you apply this force?
A bodybuilder lifts a dumbell weighing 20N.
work input
it must increase
mechanical advantage
False. Simple machines make work easier by creating a trade-off between force and distance.
work output
friction
the distance the barbell is being lifted
What is the work that you do on a simple machine?
A bodybuilder lifts a dumbell weighing 20N.
work input
it must increase
mechanical advantage
False. Simple machines make work easier by creating a trade-off between force and distance.
work output
friction
the distance the barbell is being lifted
In which situation is a person doing work on an object?
A bodybuilder lifts a dumbell weighing 20N.
work input
it must increase
mechanical advantage
False. Simple machines make work easier by creating a trade-off between force and distance.
work output
friction
the distance the barbell is being lifted
Which of the following causes work output to be less than work input?
A bodybuilder lifts a dumbell weighing 20N.
work input
it must increase
mechanical advantage
False. Simple machines make work easier by creating a trade-off between force and distance.
work output
friction
the distance the barbell is being lifted
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