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Mass and Weight Basics

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Mass and Weight Basics

Help a pop-up market pack and deliver its orders. Show your working and include units in every answer.

Mass, weight and units

Use the force of gravity on Earth as approximately 10 N per kilogram when needed.

1.A market scale reads 2.4 kg for a box of apples. What is the box’s mass in kilograms?
2.A parcel has a mass of 850 g. Convert its mass to kilograms.
3.A sack of flour has a mass of 3.2 kg. How many grams is that?
4.Which statement best distinguishes mass from weight?
  • Mass is the amount of matter in an object; weight is the gravitational force acting on it.
  • Mass is measured in newtons; weight is measured in kilograms.
  • Mass and weight both describe the same thing and never change.
  • Mass depends on gravity, but weight does not.
5.On Earth, estimate the weight force of a 3.6 kg crate using 10 N per kilogram. Give your answer in newtons.

Pack the orders

The market needs to check combined loads before they go into the delivery van.

6.A basket contains 1.25 kg of kūmara, 750 g of carrots and 0.5 kg of onions. Find the total mass in kilograms. Show a conversion or calculation.
7.A delivery trolley can carry at most 12 kg. It already holds boxes with masses of 4.6 kg and 3.85 kg. What is the greatest additional mass it can carry?
8.A sealed bag of rice has a mass of 5 kg on Earth. If it is taken to the Moon, will its mass change? Explain what happens to its weight.
9.A customer says a tiny packet of yeast has a mass of 0.008 kg. Convert this to grams, then say whether grams or kilograms is the more practical unit for the packet.
10.True or false: Two objects with equal mass must have equal weight wherever they are in the universe. Correct the statement if it is false.
TrueFalse

2 printable pages

  • Market scale reading and questions about mass, weight and metric units.

    Page 1

  • Multi-step market delivery mass problems, conversions and a gravity challenge.

    Page 2

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