Variables and planning investigations

Question 1

DV

Answer 1

The variable that is being measured during an experiment

Question 1

IV

Answer 1

the variable that is being changed during an experiment

Question 2

CV

Answer 2

variables which must be kept the same so that the results of the experiment is not affected

Question 3

What are the measurements that are taken in the the experiment called

Answer 3

Data

Question 3

Method

Answer 3

A method describes how an experiment is carried out. It should contain a set of written instructions with numbers or letters to show the order the steps are carried out.Diagram could be included. Each step should include 1 action and the apparatus should be described. Everything that was done should be included

Question 4

Accuracy

Answer 4

How close a measurement is to its true value. To make sure data is accurate calculate a mean, any anomalies shouldn’t be included

Question 5

Repeatable

Answer 5

If repeated measurements are similar

Question 6

Reproducible

Answer 6

If an experiment is repeated by another person and the result is similar

Question 7

Step 1

Answer 7

Asking the question

Question 8

Step 2

Answer 8

Identifying variables

Question 9

Step 3

Answer 9

Prediction

Question 10

Step 4

Answer 10

Equipment

Question 11

Step 5

Answer 11

Method

Question 12

Random error

Answer 12

When equipment isn’t used properly or the reading is taken incorrectly

Question 13

Systematic error

Answer 13

Not resetting a mass balance to zero or measuring from the end of a ruler instead of zero