K A Tsokos Solutions for Chapter: Measurement and Uncertainties, Exercise 4: Exam-style questions

Author:K A Tsokos

K A Tsokos Physics Solutions for Exercise - K A Tsokos Solutions for Chapter: Measurement and Uncertainties, Exercise 4: Exam-style questions

Attempt the practice questions on Chapter 1: Measurement and Uncertainties, Exercise 4: Exam-style questions with hints and solutions to strengthen your understanding. Physics for the IB Diploma 6th Edition solutions are prepared by Experienced Embibe Experts.

Questions from K A Tsokos Solutions for Chapter: Measurement and Uncertainties, Exercise 4: Exam-style questions with Hints & Solutions

EASY
Diploma
IMPORTANT

In which of the following diagrams do the three forces add up to zero?

MEDIUM
Diploma
IMPORTANT

A force of 25 N acts normally on a surface of area 5.0 cm2. What is the pressure on the surface in N m-2.

EASY
Diploma
IMPORTANT

The side of a cube is measured with an uncertainty of 2%. What is the uncertainty in the volume of the cube?

EASY
Diploma
IMPORTANT

The flow rate Q through a tube length L and radius r whose ends are kept at a pressure difference P is given by Q=cr4PL, where c is constant. The percentage uncertainty of which quantity has the largest effect on the percentage uncertainty in Q?

EASY
Diploma
IMPORTANT

The force of air resistance F on a car depends on speed v through the formula F=av2+bv, where a and b are constants. Which of the following graphs will result in a straight-line graph?

EASY
Diploma
IMPORTANT

The diagram shows the temperature of a liquid before and after heating.

Question Image

Which is the best estimate for the temperature increase of the liquid?

EASY
Diploma
IMPORTANT

A student wishes to measure the acceleration of free fall by letting a ping pong ball drop from one fixed height from the floor. He measures the height. Using a stopwatch, he measures the time for the ball to drop to the floor. He then uses the equation h=12gt2 to calculate g.

State and discuss three improvements to the student's lab experiment.