QUIZ 2 www.mathsbox.org.uk.

Slides:



Advertisements
Similar presentations
MICROSOFT EXCEL CALCULATIONS.
Advertisements

Surface Area and Volume Lesson Intentions Recap on Surface Area and Volume.
Significant Figures. 1.All nonzero digits are significant. Example: 145 (3 sig figs) 2.Zeroes between two significant figures are themselves significant.
Using Scientific Measurements.
© T Madas.
Sig Figs meet Rounding!. In Science we take measurements, but those measurements are sometimes needed to find the values that we really want. For example:
Uncertainty in Measurement
Rules for Determining Significant Figures AP Chemistry U01L05.
Starter 1.How would you record the following measurements? How many sig figs? a.b. 2.Count the sig figs in the following measured values: a
How many significant figures?
Significant Figures Physics. All nonzero digits are significant 1, 2, 3, 4, 5, 6, 7, 8, 9 Nonzero Digits.
Significant Figures. What is a significant figure? There are 2 kinds of numbers: 1. Exact : Known with certainty. Example: the number of students in this.
Significant Figures.
Addition and Subtraction of significant figures. Rule 1 Before performing an addition or subtraction operation, round off numbers to the least amount.
Upper and lower bounds starter 28 has been rounded to the nearest whole number. What is the minimum and maximum value?
Review: Find the volume of a rectangular prism with a length of 4 cm, width of 5cm and a height of 10 cm. V = Bh = (5)(4)(20) = 200cm3.
Metric Base Units Meter (m) – length Kilogram (kg) – mass Kelvin (K) – temperature Second (s) – time Mole (mol) – amount of substance.
Volume Prisms and Cylinders. Volume of a Prism A prism is a solid object with: identical ends flat sides and the same Cross Section all along its length.
1 1-6 Working with Numbers. 2 Significant Digits (sig fig's) - certain digits and the estimated digit of a measurement. Significant Digits (sig fig's)
ORDER OF OPERATIONS.
Significant Figures Homework: Working with Numbers handout # 1 – 13 Significant Figures handout #
Chapter 12 Volume. Volume Number of cubic units contained in a 3-D figure –Answer must be in cubic units ex. in 3.
1 + 2 × 3 – 4 Division / Multiplication × 3 – 4 Division / Multiplication Addition / Subtraction.
By: Tameicka James Addition Subtraction Division Multiplication
Significant Figures. Significant Figure Rules 1) ALL non-zero numbers (1,2,3,4,5,6,7,8,9) are ALWAYS significant. 1) ALL non-zero numbers (1,2,3,4,5,6,7,8,9)
Geometry Volume of Cylinders. Volume  Volume – To calculate the volume of a prism, we first need to calculate the area of the BASE of the prism. This.
Section 5.2 Uncertainty in Measurement and Significant Figures 1.To learn how uncertainty in a measurement arises 2.To learn to indicate a measurement’s.
Starter Activity: Perimeter 1 Calculate the distance around this shape (all angles are right angles)
Measurements and Mathematics in Chemistry
Unit 3 lec 2: Significant Figures
Part 2 Significant Figures with Calculations
Objective: Be able to work out the volume of a prism.
Rules for Significant Figures
Using Scientific Measurements.
Significant Figures Sig Figs.
Significant Figures.
Lesson Objectives Know how perform mathematical operations using significant figures.
Bingo Summary of questions Bingo Answers.
Measurements and Significant Figures
Aim: Why are Significant Figures Important?
Dimensional Analysis Any valid physical formula must be dimensionally consistent — each term must have the same “dimensions” (You can think in terms of.
Review of yesterday… How many sig figs are in the following? 0.02
Significant Figures in Calculations
Surface Area and Volume
Thursday October 5th, 2007 Unit 2 Day 4.
QUIZ 1
Volumes Of Solids. 7cm 5 cm 14cm 4cm 3cm 10cm.
Notes Significant Figures!.
And Calculating with Significant Digits
PHYSICS 11 TODAY’s OBJECTIVE:
Significant Figures
Using Scientific Measurements.
Measurements in Chemistry
Volume of a prism The general formula for the volume of a prism is:
• The cross section is the same all along its length
Volume of Prisms OCR Stage 8.
The red line is a………………… of the circle
Unit 1 lec 3: Significant Figures
Find volumes of prism; solve real-life problems. CC.SS.7.G.6
Volume.
Metric Base Units Meter (m) – length Kilogram (kg) – mass
Measurement book reference p
Significant Figures Revisiting the Rules.
Significant Figures in Calculations
Which of these numbers has the most significant figures E 5
Recapping Area A = ½bh A = b×h A = πr2 A = ½h(a + b)
ORDER OF OPERATIONS.
Aim: How do we determine the number of significant figures in a measurement? Warm Up What is the difference between the values of 3, 3.0, and 3.00.
Volume of Prisms OCR Stage 8.
1) ALL non-zero numbers (1,2,3,4,5,6,7,8,9) are ALWAYS significant. Significant figures are critical when reporting scientific data because they.
Presentation transcript:

QUIZ 2 www.mathsbox.org.uk

QUESTION 1 ? tan x = ? h o a NEXT www.mathsbox.org.uk

QUESTION 2 FACTORS LIST THE FACTORS OF 24 NEXT www.mathsbox.org.uk

SIGNIFICANT FIGURES Round 25700 to 1 significant figure QUESTION 3 SIGNIFICANT FIGURES Round 25700 to 1 significant figure 0.02257 to 2 significant figure www.mathsbox.org.uk

LIST the first 5 MULTIPLES of 24 QUESTION 4 MULTIPLES LIST the first 5 MULTIPLES of 24 NEXT www.mathsbox.org.uk

QUESTION 5 ? SPEED = ? NEXT www.mathsbox.org.uk

QUESTION 6 ? DENSITY = ? NEXT www.mathsbox.org.uk

h w l What is the formula to calculate the volume of a cuboid? QUESTION 7 What is the formula to calculate the volume of a cuboid? h w l NEXT www.mathsbox.org.uk

h r What is the formula to calculate the volume of a cylinder? QUESTION 8 What is the formula to calculate the volume of a cylinder? h r NEXT www.mathsbox.org.uk

length What is the formula to calculate the volume of a prism? QUESTION 9 What is the formula to calculate the volume of a prism? length NEXT www.mathsbox.org.uk

ORDER OF OPERATIONS B ? I ? D ? M ? A ? S ? QUESTION 10 NEXT www.mathsbox.org.uk

QUIZ 2 ANSWERS www.mathsbox.org.uk

ANSWER 1 opposite tan x = adjacent o a www.mathsbox.org.uk

FACTORS The FACTORS of 24 are 1, 2, 3, 4, 6, 8, 12 and 24 ANSWER 2 FACTORS The FACTORS of 24 are 1, 2, 3, 4, 6, 8, 12 and 24 1×24 2×12 3×8 4×6 www.mathsbox.org.uk

ANSWER 3 SIGNIFICANT FIGURES The first significant figure is the first non-zero figure. 25700 = 30000 (1 significant figure) 0.0225700 = 0.023 (2 significant figures) www.mathsbox.org.uk

MULTIPLES The MULTIPLES of 24 are 24, 48, 72, 96, 120… ANSWER 4 MULTIPLES The MULTIPLES of 24 are 24, 48, 72, 96, 120… 1×24 2×24 3×24 4×24 5×24 www.mathsbox.org.uk

ANSWER 5 distance SPEED = time www.mathsbox.org.uk

ANSWER 6 mass DENSITY = volume www.mathsbox.org.uk

ANSWER 7 VOLUME of a CUBOID l × w × h h w l www.mathsbox.org.uk

ANSWER 8 VOLUME of a CYLINDER πr2h h r www.mathsbox.org.uk

length VOLUME of a PRISM Area of cross section × length ANSWER 9 www.mathsbox.org.uk

ORDER OF OPERATIONS Brackets Indices (powers) Division Multiplication ANSWER 10 ORDER OF OPERATIONS Brackets Indices (powers) Division Multiplication Addition Subtraction www.mathsbox.org.uk