Which option shows the minimum equipment needed?

• electronic balance, ruler, compass and measuring cylinder

• electronic balance, ruler, compass and eureka can and beaker

• electronic balance and measuring cylinder

• electronic balance, ruler and measuring cylinder

• electronic balance, ruler, compass and beaker

Which of the following steps are not needed?

• Measure the mass using an electronic balance

• Zero the electronic balance

• measure the volume using a beaker

• Put 50cm³ of water in a measuring cylinder then add the object

• Record the volume of the water and the object in the measuring cylinder

density is found using the equation density = mass ..................... by volume

If an electronic balance reads 3.0g when there is nothing placed on it, what do we call this kind of error

• zero error

• random error

• human error

• bad luck

Which of these would you expect to float in salt water of density 1030kg/m³

• Nylon

• Polyester

• Polystyrene

• None of them

A man has 24kg of acrylic sheets - what is the volume of the sheets that he has?

• 2m³

• 0.02m³

• 28800m³

• 50m³

If nylon has a density of 1000kg/m³ what is one small square on the y-axis?

• 10

• 20

• 40

• 50

If PVC as a density of 1100kg/m³ how many of the smallest squares should the length of the bar be?

• 20

• 21

• 22

• 23

Calculate the average of these measurements

• 1000

• 1040

• 1120

• 960

How do you work out the uncertainty?

• find the biggest and the smallest value and see how far they are away from the average

• guess

• find 10% of the average

• find the smallest value and use this as the uncertainty