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GCSE Physics Practical > GCSE-Experimental > Flashcards

GCSE-Experimental Flashcards

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1
Q

The experimental variable that you directly change is called the …?… variable.

A

independent

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2
Q

The experimental variable that you expect to change as a result of any change you make in the independent variable is called the …?… variable

A

dependent

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3
Q

Any experimental variable that you keep constant during the experiment to prevent it influencing the results is called a …?… variable

A

controlled

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4
Q

An experiment that truly tests your hypothesis is …?

A

valid

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5
Q

If your results are repeatable and they provide strong evidence for your conclusion then your results are …?

A

reliable

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6
Q

For results to be reliable they will need to cover a …?… enough range.

A

wide

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7
Q

Increasing the number of results will …?… the reliability

A

increase

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8
Q

Repeating measurements will increase their …?

A

reliability

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9
Q

Repeated measurements that are clumped around the true value of the variable are …?

A

accurate

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10
Q

Repeated measurements that are close to each other are …?

A

precise

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11
Q

If the dependent variable is always equal to the independent variable multiplied by some constant then the variables are …??

A

directly proportional

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12
Q

If two variables (x and y) are directly proportional then a graph of one plotted against the other will be a …?????

A

straight line through the origin

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13
Q

If two variables (x and y) are directly proportional then one divided by the other will always approximately equal a …?

A

constant

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14
Q

When repeated measurements are equally spread above and below the true value the uncertainty is …?

A

random

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15
Q

When repeated measurements are either all above or all below the true value the uncertainty is …

A

systematic

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16
Q

If two variables (x and y) are indirectly proportional then a graph of one plotted against the other will be a …?????

A

1/x type curve in which y decreases as x increases

17
Q

If two variables (x and y) are indirectly proportional then a graph y plotted against 1/x will be a …?????

A

straight line through the origin.

18
Q

If two variables (x and y) are indirectly proportional then a constant will be obtained by… ? …y by x.

A

multiplying

19
Q

If two variables (x and y) are indirectly proportional then the equation connecting them is …

A

y = k/x

20
Q

If two variables (x and y) are directly proportional then the equation connecting them is…

A

y = kx

21
Q

If two variables (x and y) are directly proportional then a constant is obtained by …?… y by x

A

dividing

22
Q

If two variables (x and y) are directly proportional then the constant of proportionality equals the …?… of a graph of y against x.

A

gradient

23
Q

If two variables (x and y) are indirectly proportional then the gradient of a graph of y against 1/x equals…????

A

the constant of proportionality

GCSE Physics Practical (1 decks)

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