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Oak National Academy
12 questions
An object is set sliding across a surface. The greater the friction, the ___ the distance the object will slide, before it stops.
For an experiment to be a fair test, how many things can be changed between each test?
How do scientists check for mistakes in their results during the experiment?
A scientist slides a mass across a desk four times, in the same way each time. The distances travelled by the mass each time were 34, 37, 55 and 35 cm. Which result is probably a mistake?
Which of the following statements are examples of lubricants (substances added to reduce friction)?
A scientist slides a mass across a desk four times, in the same way each time. The distances travelled by the mass each time were 54, 57, 54, and 55 cm. What should be used as the final result?
A lubricant is a substance added to a surface to reduce the ...
What is an anomalous result?
A scientist slides a mass across a desk three times, in the same way each time. The distances travelled by the mass were 20, 24 and 25 cm. Calculate the mean result. Mean result = ___ cm.
A scientist slides a mass across a desk four times, in the same way each time, to check for mistakes. The distances travelled by the mass were 22, 19, 23, and 46 cm. Which result is anomalous?
Which is the correct reason why, in a fair test, the only thing we change is the variable we are testing, and everything we are not testing has to be kept the same?
A scientist slides a mass across a desk four times, in the same way each time. The distances travelled by the mass were 70, 73, 34 and 69 cm. Calculate the mean result. Mean result = ___ cm.
