Movement and position

Question 2

A student investigates the movement of three miniature model sailboats, X, Y, and Z, along a straight, narrow water channel of length $cm120\text{ cm}$ .

The three sailboats have different sail areas.
A steady fan is used to blow the boats along the channel under wind power.
The student measures the time taken for each boat to travel the entire $cm120\text{ cm}$ length of the channel from a stationary release.

The student uses the following method:

Measure the sail area of sailboat X.
Release sailboat X from the start gate and record the time taken to travel $cm120\text{ cm}$ .
Repeat the test two more times.

The student uses the same method for sailboats Y and Z.

The table shows the student's results:

Sailboat	Sail Area in $cm2\text{cm}^2$	Time in $s\text{s}$ : Run 1	Time in $s\text{s}$ : Run 2	Time in $s\text{s}$ : Run 3
X	$120$	$14.9$	$15.2$	$14.9$
Y	$180$	$19.8$	$3.2$	$20.2$
Z	$240$	$10.2$	$9.7$	$10.1$

One of the time measurements in the table is anomalous. Identify this measurement.

[1]

State the relationship between average speed, distance moved, and time taken.

[1]

Calculate the average (mean) speed for sailboat Y.

[2]

Explain what type of graph the student should use to present their data.

[2]

Before carrying out the investigation, the student made this prediction:

'The larger the sail area of the sailboat, the faster it moves down the channel.'

Discuss whether the student’s results support this prediction.

[4]

Movement and position

1 2 3 4 5 6 7 8 9 10 11 12

Question 2

A student investigates the movement of three miniature model sailboats, X, Y, and Z, along a straight, narrow water channel of length $cm120\text{ cm}$ .

The three sailboats have different sail areas.
A steady fan is used to blow the boats along the channel under wind power.
The student measures the time taken for each boat to travel the entire $cm120\text{ cm}$ length of the channel from a stationary release.

The student uses the following method:

Measure the sail area of sailboat X.
Release sailboat X from the start gate and record the time taken to travel $cm120\text{ cm}$ .
Repeat the test two more times.

The student uses the same method for sailboats Y and Z.

The table shows the student's results:

Sailboat	Sail Area in $cm2\text{cm}^2$	Time in $s\text{s}$ : Run 1	Time in $s\text{s}$ : Run 2	Time in $s\text{s}$ : Run 3
X	$120$	$14.9$	$15.2$	$14.9$
Y	$180$	$19.8$	$3.2$	$20.2$
Z	$240$	$10.2$	$9.7$	$10.1$

One of the time measurements in the table is anomalous. Identify this measurement.

[1]

State the relationship between average speed, distance moved, and time taken.

[1]

Calculate the average (mean) speed for sailboat Y.

[2]

Explain what type of graph the student should use to present their data.

[2]

Before carrying out the investigation, the student made this prediction:

'The larger the sail area of the sailboat, the faster it moves down the channel.'

Discuss whether the student’s results support this prediction.

[4]

Movement and position

Question 2

Movement and position Questions

Movement and position

Question 2

Movement and position Questions