Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Exam-style questions>Q 2

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Diploma

IMPORTANT

Earn 100

A book has $500$ pages (printed on both sides). The width of the book excluding the covers is $2.5 cm$ . What is the approximate width in $mm$ of one sheet of paper?

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Important Questions on Measurement and Uncertainties

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Diploma

IMPORTANT

Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Exam-style questions>Q 3

The speed of sound is approximately

330 m s^{- 1}

. A storm is

3 km

away. Approximately how much later after seeing lightning will thunder be heard?

EASY

Diploma

IMPORTANT

Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Exam-style questions>Q 4

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

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Diploma

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Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Exam-style questions>Q 5

Three forces act on a body as shown.

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MEDIUM

Diploma

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Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Exam-style questions>Q 6

A force of

25 N

acts normally on a surface of area

5.0 {cm}^{2}

. What is the pressure on the surface in

N m^{- 2}

.

EASY

Diploma

IMPORTANT

Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Exam-style questions>Q 7

The side of a cube is measured with an uncertainty of

2 %

. What is the uncertainty in the volume of the cube?

EASY

Diploma

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Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Exam-style questions>Q 8

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 = \frac{c r^{4} ∆ P}{L}

, where

c

is constant. The percentage uncertainty of which quantity has the largest effect on the percentage uncertainty in

Q

?

EASY

Diploma

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Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Exam-style questions>Q 9

The force of air resistance

F

on a car depends on speed

v

through the formula

F = a v^{2} + b v

, where

a

and

b

are constants. Which of the following graphs will result in a straight-line graph?

EASY

Diploma

IMPORTANT

Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Exam-style questions>Q 10

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

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