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Which of the following causes the efficiency of a machine to be less than 100%?
Modify your hypothesis and retest.
Any device that helps people do work
Friction
Any machine that pushes or pulls
Created or destroyed
Screw
Repeatable test data
What is last year’s most popular book?
Which of the following increases the reliability of a scientific explanation?
Modify your hypothesis and retest.
Any device that helps people do work
Friction
Any machine that pushes or pulls
Created or destroyed
Screw
Repeatable test data
What is last year’s most popular book?
What is a simple machine?
Modify your hypothesis and retest.
Any device that helps people do work
Friction
Any machine that pushes or pulls
Created or destroyed
Screw
Repeatable test data
What is last year’s most popular book?
What is a machine?
Modify your hypothesis and retest.
Any device that helps people do work
Friction
Any machine that pushes or pulls
Created or destroyed
Screw
Repeatable test data
What is last year’s most popular book?
If the results from your experiment do not support your hypothesis, what should you do? You should:
Modify your hypothesis and retest.
Any device that helps people do work
Friction
Any machine that pushes or pulls
Created or destroyed
Screw
Repeatable test data
What is last year’s most popular book?
Which of the following questions can science NOT answer?
Modify your hypothesis and retest.
Any device that helps people do work
Friction
Any machine that pushes or pulls
Created or destroyed
Screw
Repeatable test data
What is last year’s most popular book?
Which of the following is a form of the inclined plane?
Modify your hypothesis and retest.
Any device that helps people do work
Friction
Any machine that pushes or pulls
Created or destroyed
Screw
Repeatable test data
What is last year’s most popular book?
What does the Law of the Conservation of Energy state? Energy cannot be:
Modify your hypothesis and retest.
Any device that helps people do work
Friction
Any machine that pushes or pulls
Created or destroyed
Screw
Repeatable test data
What is last year’s most popular book?
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