Obtaining, analysing and evaluating results test questions - WJEC

1

In an experiment, A was changed and B was measured. What is the relationship between A and B?

A graph with the x axis labelled A and the y axis labelled B. A line runs upwards diagonally from point (0,4) to (4,16).

2

In an experiment, A was changed and B was measured. The students did not measure any data when A was set to 2. Based on the numbers in the table, what is the likely missing value when A is 2?

A two-row table showing the values A, 1, 2, 3, 4, 5 in the 1st row and B, 24, _, 6, 3, 1.5 in the 2nd row.

3

In an experiment, A was changed and B was measured. What is the relationship between A and B?

A graph with the x axis labelled A and the y axis labelled B. A line runs horizontally from the y axis.

4

In an experiment to measure the speed of sound over a long field, a student records four time intervals between seeing a stick being hit and receiving the sound. One reading is anomalous. The student needs to calculate the mean of the data in the most accurate way. How should they go about this?

0.73, 0.69, 0.42, 0.71

5

Five groups of students have been measuring the time taken for a rubber bung to be spun round ten times when there is a weight on the other end.

They made the following table of results.

Which group has made a mistake in their measuring?

A 7 column table labelled Force (N), Time for 10 rotations (s) and Mean time for 10 rotations (s). The second column is further divided into Group 1, Group 2, Group 3, Group 4 and Group 5.

6

Repeatable results...

7

What is the relationship between the variables A and B?

A two-row table showing the values A, 0, 1, 2, 3, 4 in the 1st row and B, 0, 3, 6, 9, 12 in the 2nd row.

8

Which of these would not improve accuracy?

9

In an experiment to measure the stopping distance of a car at different speeds, what is the independent variable?

10

Removing any anomalies, what is the mean time for 10 rotations when a force of 2 N is tested?

A 7 column table labelled Force (N), Time for 10 rotations (s) and Mean time for 10 rotations (s). The second column is further divided into Group 1, Group 2, Group 3, Group 4 and Group 5.