Ontario Grade 9 Science Class Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Master Grade 9 Science with our comprehensive practice exam. Test your knowledge, identify weak areas, and boost your confidence for academic success.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is the function of a voltmeter?

To measure current
To measure potential difference
To measure resistance
To measure capacitance

The correct answer is: To measure potential difference

A voltmeter is a device used to measure the potential difference (voltage) between two points in an electrical circuit. It is incorrect to state that the function of a voltmeter is to measure current, resistance, or capacitance because those are different measurements that require different instruments. In summary, the function of a voltmeter is specifically to measure potential difference, making option B the correct answer.