3.1 Measurements and Their Errors

Practice questions on Measurements and Their Errors

• A physics technician records the following measurements during an experiment: a length of … (5 marks, Describe)
• A student is comparing four measurements taken in a school laboratory: a time of 0.002 s, … (5 marks, Describe)
• A student measures the width of a human hair as 0.00008 m. Explain how the student could e… (5 marks, Explain)
• A student wants to estimate the power output of a person walking up a flight of stairs. Ex… (5 marks, Explain)
• A student wants to estimate the kinetic energy of a cyclist travelling along a flat road. … (5 marks, Explain)
• Explain how a student could estimate the volume of a human lung, giving a reasonable final… (5 marks, Explain)
• Explain how a student could estimate the speed of a car travelling along a road, without u… (5 marks, Explain)
• A student measures the acceleration of a toy car rolling down a ramp. She times how long t… (5 marks, Explain)
• A student measures the focal length of a converging lens by finding the distance at which … (5 marks, Explain)
• A student measures the mass of a metal block five times using a digital balance. His resul… (5 marks, Describe)
• A student measures the density of a liquid by recording its volume and mass. He takes five… (5 marks, Explain)
• A student measures the voltage across a battery using a voltmeter. He takes five readings:… (5 marks, Explain)
• A student is investigating the properties of a superconducting material. The student recor… (5 marks, Explain)
• A student records four measurements during a medical physics investigation: a time interva… (5 marks, State)
• A student is setting up equipment for an experiment and needs to convert between SI units … (5 marks, State)
• A student is reading a data sheet for an electronic component. The data sheet lists the fo… (5 marks, Explain)
• A student wants to estimate the gravitational potential energy stored in a full can of fiz… (5 marks, Explain)
• A student measures the resistance of a resistor five times using an ohmmeter. His results … (5 marks, Describe)
• A student wants to estimate the time it takes for a human heart to beat once. Explain how … (5 marks, Explain)
• A student is asked to estimate the density of a human body. Explain how the student could … (5 marks, Explain)