units of measurement

What is the length of a standard pencil in centimetres? A standard pencil typically measures between 15 cm and 25 cm. It is important to know the exact length for various applications, such as in art or education.

• 20 cm

• 15 cm

• 25 cm

• 19 cm

Answer explanation

A standard pencil typically measures around 20 cm in length. While 19 cm is also a common size, 20 cm is the most widely accepted standard length for pencils.

Tags

CCSS.3.MD.B.4

How many millilitres are there in 1 litre? In the metric system, 1 litre is equivalent to 1000 millilitres. This is a standard conversion that is important in various fields such as cooking, chemistry, and medicine.

• 200 ml

• 1000 ml

• 1500 ml

• 500 ml

Answer explanation

1 litre is equivalent to 1000 millilitres. Therefore, the correct answer is 1000 ml.

Tags

CCSS.5.MD.A.1

CCSS.5.NBT.A.2

If a bag of flour weighs 1 kg, how many grams does it weigh? Remember that 1 kg is equal to 1000 grams.

• 2000 g

• 1500 g

• 500 g

• 1000 g

Answer explanation

A bag of flour weighing 1 kg is equivalent to 1000 grams, since 1 kg equals 1000 g. Therefore, the correct answer is 1000 g.

Tags

CCSS.5.MD.A.1

What unit would you use to measure the height of a door? This question is important because the height of doors is typically measured in smaller units, and understanding the appropriate unit can help in various practical applications such as construction and interior design.

• Millimetres

• Metres

• Centimetres

• Kilometres

Answer explanation

To measure the height of a door, metres and centimetres are appropriate units. Metres are suitable for taller doors, while centimetres provide more precision for standard door heights.

Tags

CCSS.5.MD.A.1

If you estimate that a jug holds about 8 cups, how many millilitres is that? (Assuming 1 cup is 250 ml)

To find the total volume in millilitres, you can multiply the number of cups by the volume of one cup in millilitres. Therefore, 8 cups multiplied by 250 ml per cup equals 2000 ml.

• 2500 ml

• 1500 ml

• 3000 ml

• 2000 ml

Answer explanation

To convert cups to millilitres, multiply the number of cups by 250 ml. For 8 cups: 8 x 250 = 2000 ml. Therefore, the jug holds 2000 ml.

Tags

CCSS.5.MD.A.1

CCSS.5.MD.C.5

Which of the following is a correct conversion from grams to kilograms? This question tests your understanding of the metric system, specifically the conversion between grams and kilograms, where 1 kilogram equals 1000 grams.

• 300 g = 0.3 kg

• 1000 g = 1 kg

• 2000 g = 2 kg

• 500 g = 0.5 kg

Answer explanation

To convert grams to kilograms, divide by 1000. Thus, 1000 g = 1 kg, 2000 g = 2 kg, and 500 g = 0.5 kg are correct conversions. 300 g = 0.3 kg is also correct, but not listed as a correct answer.

Tags

CCSS.5.MD.A.1

What is the best way to estimate the weight of a bag of oranges?

• By comparing it to a known weight, like 1 kg. This method provides a direct reference point, making it easier to gauge the weight accurately.

• By guessing based on size alone. This method is unreliable as size does not always correlate with weight.

• By measuring it with a ruler. This method does not provide any information about weight, as a ruler measures length, not weight.

• By asking someone else to guess. This method is subjective and can lead to inaccurate estimations.

Answer explanation

The best way to estimate the weight of a bag of oranges is by comparing it to a known weight, like 1 kg. This method provides a reference point, making the estimation more accurate than guessing or measuring size.

Tags

CCSS.3.MD.A.2

When cooking, why is it important to estimate the capacity of a container?

• To ensure you don’t overfill or underfill, which can lead to spills or insufficient ingredients for your recipe.

• To impress your friends, as having the right amount of ingredients can showcase your cooking skills.

• To waste ingredients, since knowing the right capacity helps in using only what is necessary.

• To make cooking more complicated, as understanding container capacity simplifies the cooking process.

Answer explanation

Estimating the capacity of a container is crucial to ensure you don’t overfill or underfill it. This helps in achieving the right balance of ingredients, leading to better cooking results.

Tags

CCSS.5.MD.C.5

CCSS.5.MD.C.3

CCSS.5.MD.C.4

What is the relationship between millilitres and litres?

• 1000 ml = 1 l. This means that one litre is equivalent to one thousand millilitres, which is a standard conversion in the metric system.

• 500 ml = 1 l. This option is incorrect as it suggests that half a litre is equal to one litre, which is not true.

• 200 ml = 1 l. This option is also incorrect as it implies that one-fifth of a litre equals one litre, which is inaccurate.

• 1500 ml = 1 l. This option is misleading because it suggests that one and a half litres equals one litre, which is false.

Answer explanation

The correct relationship is 1000 ml = 1 l, meaning that one litre is equivalent to one thousand millilitres. This is a standard conversion in the metric system.

Tags

CCSS.5.MD.A.1

Which of these is a practical application of measurement skills?

• Planning a road trip distance - This involves measuring the distance between locations to estimate travel time and fuel consumption.

• Deciding what to wear - While this may involve some measurement of temperature or occasion, it is less about measurement skills.

• Choosing a movie to watch - This is more about personal preference than measurement.

• Picking a snack to eat - This decision is typically based on cravings or dietary choices rather than measurement.

Answer explanation

Planning a road trip distance involves measuring the distance between locations, which requires practical measurement skills. The other options do not involve significant measurement tasks.

Tags

CCSS.5.MD.A.1