Gr 11 Math Lit: Ch 2 sum Measurements
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Questions and Answers

What is the conversion factor used to convert weight from kilograms to pounds?

  • 2.206 (correct)
  • 3.0
  • 1.8
  • 1.0

What is the formula to convert temperature from Celsius to Fahrenheit?

  • °F = (1.8 × °C) + 32 (correct)
  • °F = (1.2 × °C) + 28
  • °F = (2.0 × °C) + 35
  • °F = (1.5 × °C) + 30

What is the purpose of conversion factors in measurements?

  • To eliminate the need for conversions
  • To provide exact values for measurements
  • To simplify complex calculations
  • To switch between different units of measurement (correct)

What is the formula to convert weight from pounds to kilograms?

<p>Weight (kg) = Weight (pounds) ÷ 2.206 (D)</p> Signup and view all the answers

What is the conversion factor used to convert volume from cubic meters to liters?

<p>1,000 (A)</p> Signup and view all the answers

What is the formula to convert temperature from Fahrenheit to Celsius?

<p>°C = (°F - 32) ÷ 1.8 (C)</p> Signup and view all the answers

What is the purpose of conversion factors specific to ingredients or materials?

<p>To facilitate conversions between solid and liquid quantities (A)</p> Signup and view all the answers

What is the conversion factor used to convert volume from milliliters to grams?

<p>Conversion Factor for Volume (C)</p> Signup and view all the answers

What is the unit of measurement for surface area?

<p>Square units (e.g. mm^2, cm^2, m^2) (A)</p> Signup and view all the answers

What is the formula for the surface area of a rectangular box?

<p>SA = 2lw + 2lh + 2wh (B)</p> Signup and view all the answers

What is the formula for the volume of a cylindrical container?

<p>V = πr^2h (D)</p> Signup and view all the answers

What is the conversion ratio between cubic meters and liters?

<p>1 m^3 = 1000 l (D)</p> Signup and view all the answers

What is the conversion ratio between cubic centimeters and milliliters?

<p>1 cm^3 = 1 ml (A)</p> Signup and view all the answers

Why is it important to convert between units when calculating surface area and volume?

<p>To ensure that values are in the correct unit for the problem (B)</p> Signup and view all the answers

What is the formula for the volume of a rectangular box?

<p>V = lwh (D)</p> Signup and view all the answers

What is the purpose of calculating surface area and volume?

<p>To solve problems or make decisions in real-world contexts (A)</p> Signup and view all the answers

What is an important consideration when converting between units?

<p>That the conversion ratio is not always straightforward (D)</p> Signup and view all the answers

What is the purpose of recording a measurement or estimation?

<p>To write down the value, ensuring that it includes the correct units and reflects the appropriate level of precision (D)</p> Signup and view all the answers

What is the purpose of calculating the surface area and spread rate of paint?

<p>To determine the amount of paint needed (A)</p> Signup and view all the answers

What is the formula to calculate the total liters of paint needed?

<p>Paint Needed (liters) = Surface Area (m²) / Spread Rate (m²/liter) (C)</p> Signup and view all the answers

What is the first step in converting time recording values?

<p>Convert the hours, minutes, and seconds to a single unit (B)</p> Signup and view all the answers

What is the formula to convert minutes to seconds?

<p>Seconds = Minutes × 60 (C)</p> Signup and view all the answers

What is the purpose of breaking down time values into hours, minutes, and seconds?

<p>To find the difference between two time values (C)</p> Signup and view all the answers

What is the first step in using a timetable?

<p>Identify the week and dates of the events (C)</p> Signup and view all the answers

What is the purpose of practical tips for performing conversions?

<p>To ensure accuracy and avoid mistakes (B)</p> Signup and view all the answers

What is the key concept in interpreting time recording values?

<p>Converting time values to a single unit (D)</p> Signup and view all the answers

Why is it important to understand the context in which the conversion is being performed?

<p>To use the right units and conversion factors (D)</p> Signup and view all the answers

What is the formula to convert hours to seconds?

<p>Seconds = Hours × 3600 (A)</p> Signup and view all the answers

How many seconds are in 5 minutes?

<p>300 (B)</p> Signup and view all the answers

What is the formula to convert hours to seconds?

<p>Seconds = Hours × 3600 (C)</p> Signup and view all the answers

What is the purpose of converting to a single unit when calculating time differences?

<p>To simplify the calculation and ensure accuracy (B)</p> Signup and view all the answers

What is the unit of measurement used to measure the weight of an object?

<p>Kilograms (D)</p> Signup and view all the answers

What is the purpose of using benchmarks when estimating quantities?

<p>To provide a known reference point for estimation (D)</p> Signup and view all the answers

What is the formula to convert minutes to hours?

<p>Hours = Minutes ÷ 60 (D)</p> Signup and view all the answers

What is the purpose of identifying the quantity to be measured or estimated?

<p>All of the above (D)</p> Signup and view all the answers

What is the formula to convert seconds to hours?

<p>Hours = Seconds ÷ 3600 (B)</p> Signup and view all the answers

What is the purpose of using significant figures in measurement and calculation?

<p>To reflect the precision of the data (D)</p> Signup and view all the answers

What is the purpose of error analysis in measurement?

<p>To account for potential errors (D)</p> Signup and view all the answers

What is the conversion factor used to convert weight from kilograms to pounds?

<p>2.206 (A)</p> Signup and view all the answers

What is the formula to convert temperature from Celsius to Fahrenheit?

<p>°F = (1.8 × °C) + 32 (D)</p> Signup and view all the answers

If a recipe requires 250 grams of flour, how many milliliters of flour are needed if the conversion factor is 1.25?

<p>312.5 ml (B)</p> Signup and view all the answers

What is the conversion factor used to convert volume from cubic meters to liters?

<p>1,000 (D)</p> Signup and view all the answers

If a container has a volume of 2 cubic meters, how many liters does it hold?

<p>2,000 liters (D)</p> Signup and view all the answers

What is the formula to convert weight from pounds to kilograms?

<p>kg = pounds ÷ 2.206 (A)</p> Signup and view all the answers

If a substance has a volume of 500 cubic centimeters, how many milliliters does it hold?

<p>500 ml (D)</p> Signup and view all the answers

What is the formula to convert temperature from Fahrenheit to Celsius?

<p>°C = (°F - 32) ÷ 1.8 (A)</p> Signup and view all the answers

What is the purpose of identifying the spread rate of the paint?

<p>To determine the amount of paint needed for a specific area (D)</p> Signup and view all the answers

What is the formula to calculate the total liters of paint needed?

<p>Paint Needed (liters) = Surface Area (m²) ÷ Spread Rate (m²/liter) (B)</p> Signup and view all the answers

Why is it important to double-check your calculations when converting between units?

<p>To ensure accuracy and avoid mistakes (C)</p> Signup and view all the answers

What is the result of converting 3 hours, 45 minutes, and 20 seconds to a single unit?

<p>13820 seconds (B)</p> Signup and view all the answers

What is the purpose of breaking down time values into hours, minutes, and seconds?

<p>To perform calculations involving time differences (D)</p> Signup and view all the answers

What is the formula to convert seconds to minutes?

<p>Minutes = Seconds ÷ 60 (B)</p> Signup and view all the answers

What is the purpose of using a timetable?

<p>To plan and organize activities according to a specific schedule (B)</p> Signup and view all the answers

What is the result of converting 240 minutes to hours?

<p>2 hours (C)</p> Signup and view all the answers

Why is it important to understand the context in which the conversion is being performed?

<p>To use the right units and conversion factors (B)</p> Signup and view all the answers

What is the purpose of converting time recording values to a single unit?

<p>To perform calculations involving time differences (C)</p> Signup and view all the answers

What is the surface area of a rectangular box with a length of 5 cm, a width of 3 cm, and a height of 2 cm?

<p>62 cm² (B)</p> Signup and view all the answers

What is the volume of a cylindrical container with a radius of 4 cm and a height of 6 cm?

<p>384 cm³ (D)</p> Signup and view all the answers

How many litres of water can a cubic meter hold?

<p>1000 l (D)</p> Signup and view all the answers

What is the conversion factor used to convert from cubic centimeters to milliliters?

<p>1 cm³ = 1 ml (C)</p> Signup and view all the answers

If a rectangular box has a length of 5 m, a width of 3 m, and a height of 2 m, what is its volume in cubic centimeters?

<p>30,000,000 cm³ (C)</p> Signup and view all the answers

What is the purpose of converting between units when calculating surface area and volume?

<p>To ensure that the calculations are performed in the same unit (A)</p> Signup and view all the answers

If a rectangular box has a surface area of 100 cm², and each side is increased by 2 cm, what is the new surface area?

<p>196 cm² (D)</p> Signup and view all the answers

What is the importance of considering the context in which the conversion is being performed?

<p>To ensure that the conversion is relevant to the problem (B)</p> Signup and view all the answers

What is the volume of a rectangular box with a length of 3 m, a width of 2 m, and a height of 1 m?

<p>3 m³ (C)</p> Signup and view all the answers

Why is it important to record the measurement or estimation?

<p>To reflect the appropriate level of precision (B)</p> Signup and view all the answers

What is the conversion factor used to convert minutes to seconds?

<p>60 (A)</p> Signup and view all the answers

What is the first step in calculating time differences?

<p>Convert hours and minutes to seconds (A)</p> Signup and view all the answers

What is the purpose of using benchmarks when estimating quantities?

<p>To make reasonable estimates of quantities when exact measurement is not possible (D)</p> Signup and view all the answers

What is the unit of measurement used to measure the surface area of an object?

<p>Square meters (A)</p> Signup and view all the answers

What is the purpose of using significant figures in measurement and calculation?

<p>To reflect the precision of the data (A)</p> Signup and view all the answers

What is the result of converting 2 hours, 30 minutes, and 40 seconds to a single unit?

<p>9000 seconds (A)</p> Signup and view all the answers

What is the purpose of error analysis in measurement?

<p>To understand and account for potential errors in measurement (D)</p> Signup and view all the answers

What is the conversion factor used to convert hours to seconds?

<p>3600 (C)</p> Signup and view all the answers

What is the purpose of measuring and estimating quantities?

<p>To make reasonable estimates of quantities when exact measurement is not possible (B)</p> Signup and view all the answers

What is the first step in using a timetable?

<p>Extract key information to plan and organize activities effectively (C)</p> Signup and view all the answers

What is the result of converting 5 kilograms to pounds using the conversion factor 2.206?

<p>11.531 pounds (A)</p> Signup and view all the answers

If a temperature is 27°C, what is the equivalent temperature in Fahrenheit using the given formula?

<p>80.6°F (C)</p> Signup and view all the answers

What is the result of converting 200 grams of a substance to milliliters if the conversion factor is 1.5?

<p>133.33 ml (C)</p> Signup and view all the answers

If a container has a volume of 3.5 cubic meters, how many liters does it hold?

<p>3,500 liters (A)</p> Signup and view all the answers

What is the result of converting 70°F to Celsius using the given formula?

<p>20.56°C (C)</p> Signup and view all the answers

What is the result of converting 250 milliliters to cubic centimeters?

<p>250 cm³ (C)</p> Signup and view all the answers

If a recipe requires 500 grams of flour, how many milliliters of flour are needed if the conversion factor is 1.2?

<p>416.67 ml (A)</p> Signup and view all the answers

What is the result of converting 4 cubic centimeters to milliliters?

<p>4 ml (C)</p> Signup and view all the answers

What is the surface area of a rectangular box with a length of 5cm, a width of 3cm, and a height of 2cm?

<p>62cm^2 (B)</p> Signup and view all the answers

A cylindrical container has a radius of 4cm and a height of 10cm. What is its volume?

<p>502.4cm^3 (B)</p> Signup and view all the answers

What is the volume of a rectangular box with a length of 6cm, a width of 4cm, and a height of 5cm?

<p>120cm^3 (C)</p> Signup and view all the answers

If a paint can hold 1 liter of paint, how many cubic centimeters does it hold?

<p>1000cm^3 (C)</p> Signup and view all the answers

A rectangular box has a surface area of 240cm^2. If its length is 6cm and its width is 4cm, what is its height?

<p>5cm (D)</p> Signup and view all the answers

What is the surface area of a cylinder with a radius of 3cm and a height of 8cm?

<p>242.88cm^2 (C)</p> Signup and view all the answers

If a container has a volume of 2.5 liters, how many cubic centimeters does it hold?

<p>2500cm^3 (C)</p> Signup and view all the answers

What is the volume of a rectangular box with a length of 8cm, a width of 6cm, and a height of 4cm?

<p>192cm^3 (C)</p> Signup and view all the answers

A cylindrical container has a radius of 5cm and a height of 12cm. What is its surface area?

<p>442.88cm^2 (D)</p> Signup and view all the answers

If a paint can hold 2.5 liters of paint, how many cubic meters does it hold?

<p>0.0025m^3 (A)</p> Signup and view all the answers

A paint can covers 25 square meters per liter. If a wall has a surface area of 150 square meters, how many liters of paint will be needed to cover it?

<p>7.5 liters (D)</p> Signup and view all the answers

What is the total number of seconds in 2 hours, 45 minutes, and 30 seconds?

<p>10230 seconds (C)</p> Signup and view all the answers

A painter needs to paint a room with a surface area of 300 square meters. The paint can covers 20 square meters per liter. How many liters of paint will be needed to cover the entire room?

<p>18 liters (A)</p> Signup and view all the answers

What is the total number of hours in 5400 seconds?

<p>1.5 hours (B)</p> Signup and view all the answers

A painter needs to paint a wall with a surface area of 200 square meters. The paint can covers 15 square meters per liter. How many liters of paint will be needed to cover the entire wall?

<p>13.33 liters (B)</p> Signup and view all the answers

What is the total number of minutes in 3600 seconds?

<p>60 minutes (D)</p> Signup and view all the answers

A painter needs to paint a surface with a surface area of 400 square meters. The paint can covers 25 square meters per liter. How many liters of paint will be needed to cover the entire surface?

<p>15 liters (C)</p> Signup and view all the answers

What is the total number of seconds in 1 hour, 20 minutes, and 15 seconds?

<p>4815 seconds (A)</p> Signup and view all the answers

A painter needs to paint a room with a surface area of 250 square meters. The paint can covers 12 square meters per liter. How many liters of paint will be needed to cover the entire room?

<p>21.5 liters (A)</p> Signup and view all the answers

What is the total number of hours in 8100 seconds?

<p>2.25 hours (D)</p> Signup and view all the answers

What is the purpose of converting between different units of measurement in the same system?

<p>To simplify calculations (A)</p> Signup and view all the answers

What is the primary benefit of using significant figures in measurement and calculation?

<p>To reflect the precision of the data (B)</p> Signup and view all the answers

What is the purpose of identifying the quantity to be measured or estimated?

<p>To select the appropriate tool (A)</p> Signup and view all the answers

What is the key concept in measuring time?

<p>Interpreting time recording values (D)</p> Signup and view all the answers

What is the purpose of error analysis in measurement?

<p>To account for potential errors (A)</p> Signup and view all the answers

What is the primary benefit of using rates and proportions in measurement?

<p>To solve problems involving speed and density (A)</p> Signup and view all the answers

What is the purpose of converting to a single unit when calculating time differences?

<p>To enable the calculation of time differences (B)</p> Signup and view all the answers

What is the primary benefit of using scaling in maps and models?

<p>To represent real-life objects or distances accurately (D)</p> Signup and view all the answers

What is the purpose of using benchmarks when estimating quantities?

<p>To make estimations more accurate (A)</p> Signup and view all the answers

What is the primary benefit of understanding the context in which the conversion is being performed?

<p>To ensure the conversion is relevant and accurate (D)</p> Signup and view all the answers

If a recipe requires 150 pounds of flour, how many kilograms of flour are needed?

<p>68.04 kg (C)</p> Signup and view all the answers

What is the temperature in Fahrenheit if a recipe requires 250°C?

<p>488°F (C)</p> Signup and view all the answers

If a container has a volume of 1.5 cubic meters, how many liters does it hold?

<p>1,500 l (C)</p> Signup and view all the answers

What is the weight in kilograms if a package has a weight of 220 pounds?

<p>99.79 kg (C)</p> Signup and view all the answers

If a substance has a volume of 300 milliliters, how many cubic centimeters does it hold?

<p>300 cm³ (A)</p> Signup and view all the answers

What is the temperature in Celsius if a weather report states that it is 80°F?

<p>26.67°C (A)</p> Signup and view all the answers

If a recipe requires 2 kilograms of sugar, how many pounds of sugar are needed?

<p>4.409 pounds (B)</p> Signup and view all the answers

What is the volume in liters if a container has a volume of 2.5 cubic meters?

<p>2,500 l (D)</p> Signup and view all the answers

What is the surface area of a rectangular box with a length of 5 cm, a width of 3 cm, and a height of 2 cm?

<p>62 cm^2 (B)</p> Signup and view all the answers

If a cylindrical container has a radius of 4 cm and a height of 6 cm, what is its volume in milliliters?

<p>301.59 ml (A)</p> Signup and view all the answers

A rectangular box has a volume of 480 cm^3. If the length and width are both 6 cm, what is the height of the box?

<p>4 cm (B)</p> Signup and view all the answers

If a container can hold 2 liters of water, what is its volume in cubic centimeters?

<p>2000 cm^3 (C)</p> Signup and view all the answers

What is the surface area of a cylinder with a radius of 3 cm and a height of 5 cm?

<p>131.95 cm^2 (A)</p> Signup and view all the answers

If a rectangular box has a length of 8 cm, a width of 5 cm, and a height of 3 cm, what is its volume in milliliters?

<p>120.00 ml (D)</p> Signup and view all the answers

What is the volume of a cylindrical container with a radius of 5 cm and a height of 8 cm?

<p>628.32 cm^3 (D)</p> Signup and view all the answers

If a container can hold 1500 milliliters of water, what is its volume in cubic meters?

<p>1.0 m^3 (D)</p> Signup and view all the answers

What is the surface area of a rectangular box with a length of 10 cm, a width of 8 cm, and a height of 5 cm?

<p>290 cm^2 (C)</p> Signup and view all the answers

If a cylindrical container has a radius of 6 cm and a height of 10 cm, what is its surface area in square centimeters?

<p>452.39 cm^2 (D)</p> Signup and view all the answers

What is the primary purpose of converting between units of measurement?

<p>To ensure accuracy and consistency in measurement (D)</p> Signup and view all the answers

What is the purpose of calculating the total liters of paint needed?

<p>To ensure that sufficient paint is available for the job. (A)</p> Signup and view all the answers

What is the key concept in measuring time?

<p>Understanding the concept of seconds, minutes, and hours (D)</p> Signup and view all the answers

What is the key concept in interpreting time recording values?

<p>Converting time values to a single unit. (C)</p> Signup and view all the answers

What is the formula to calculate the total liters of paint needed?

<p>Paint Needed (liters) = Surface Area (m²) / Spread Rate (m²/liter) (B)</p> Signup and view all the answers

What is the formula to convert minutes to hours?

<p>Hours = Minutes / 60 (B)</p> Signup and view all the answers

What is the purpose of using significant figures in measurement and calculation?

<p>To reflect the precision of the data (A)</p> Signup and view all the answers

Why is it important to understand the context in which the conversion is being performed?

<p>To ensure accurate calculations. (D)</p> Signup and view all the answers

What is the primary purpose of error analysis in measurement?

<p>To identify potential sources of error (B)</p> Signup and view all the answers

What is the purpose of double-checking your calculations when converting between units?

<p>To ensure accuracy and avoid mistakes. (B)</p> Signup and view all the answers

What is the formula to convert minutes to seconds?

<p>Seconds = Minutes x 60 (D)</p> Signup and view all the answers

What is the formula to convert seconds to hours?

<p>Hours = Seconds / 3600 (B)</p> Signup and view all the answers

What is the purpose of identifying the quantity to be measured or estimated?

<p>To determine the appropriate unit of measurement (D)</p> Signup and view all the answers

What is the purpose of breaking down time values into hours, minutes, and seconds?

<p>To make it easier to perform calculations. (A)</p> Signup and view all the answers

What is the formula to convert hours to seconds?

<p>Seconds = Hours x 3600 (C)</p> Signup and view all the answers

What is the key concept in estimating quantities?

<p>Using benchmarks to make estimations (B)</p> Signup and view all the answers

What is the purpose of using rates and proportions in measurement?

<p>To solve problems involving speed, density, and other rate-based measures (D)</p> Signup and view all the answers

What is the purpose of using practical tips for performing conversions?

<p>To avoid mistakes and ensure accuracy. (C)</p> Signup and view all the answers

What is the formula to convert hours to seconds?

<p>Seconds = Hours × 3600 (C)</p> Signup and view all the answers

What is the first step in converting time recording values?

<p>Break down the time values into hours, minutes, and seconds. (D)</p> Signup and view all the answers

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