Practical Skills

What is the independent variable in a science experiment?

• Anything that can change

• The thing you change

• The thing you measure at the end

• The thing you keep the same

What is the dependent variable in a science experiment?

• Anything that can change

• The thing you change

• The thing you measure

• The thing you keep the same

What is a control variable in a science experiment?

• Anything that can change

• The thing you change

• The thing you measure

• The thing you keep the same

Which of the following shows the correct accuracy of a length measured by a meter rule?

• 13 cm

• 13.2 cm

• 13.22 cm

• 1.3220 m

Which of the following shows the correct accuracy of current in a closed circuit measured by an ammeter?

• 1.2 A

• 1.23 A

• 1.230 A

Which of the following shows the correct accuracy of voltage across a resistor in a closed circuit measured by a voltmeter?

• 2.4 V

• 2.42 V

• 2.45 V

Which of the following shows the correct accuracy of a length measured by a micrometer?

• 1.2 cm

• 1.20 cm

• 1.20 mm

• 1.200 mm

Which of the following shows the correct accuracy of a temperature measured by a thermometer?

State what is wrong with this graph.

• Wrong scale. The plots are too close to one another.

• Wrong scale. The graph drawn is too small.

• Wrong line. This is not the best fit line.

State what is wrong with this graph.

• Wrong scale. The plots are too close to one another.

• Wrong scale. The graph drawn is too small.

• Wrong line. This is not the best fit line.