Foundation June 2018 Paper 3 Q11
11 Jo has a full cup of coffee.
She drinks some of it.
She says,
“Half of the coffee is still in the cup, because 5 cm is half of 10 cm”
Is she correct?
Tick a box.
- Yes
- No
Give a reason for your answer. [1 mark]
| Answer | Mark | Comments |
|---|---|---|
| No and gives a correct reason | B1 | eg the cup is narrower at the bottom the top of the cup is wider the radius of the cup is not constant |
Additional guidance
| Ignore irrelevant statements with valid reasons | |
| A correct reason will usually reference volume, capacity, surface area, width of the cup or that the shape of the cup is not uniform | |
| No, volume at top is greater than bottom | B1 |
| No, more area at top | B1 |
| No, wider diameter at top | B1 |
| No, doesn’t take account of volume (capacity) | B1 |
| No, because it’s cone shaped (condone use of cone) | B1 |
| No, the cup goes down in circumference as you begin to drink | B1 |
| No, the cup is not uniform | B1 |
| No, she is talking about the height not the volume | B1 |
| No, there is a larger volume in the top half | B1 |
| No, more coffee in top half (coffee implies capacity) | B1 |
| No, the cup has a changing volume | B1 |
| No, it’s not a cylinder | B0 |
| No, there would be 5cm if it was rectangular or square but it is cone shaped so 5cm is not left | B0 |
| No, top half is more (than bottom half) (no reference to volume) | B0 |
| No, the cup gets smaller | B0 |
| No, because of the shape of the cup | B0 |
| No, the cup is not straight | B0 |
| No, the cup does not have a symmetrical shape | B0 |
| No, because the volume of coffee is not measured in cm | B0 |
| No, because 10cm is the measurement of the cup, not the volume (no reference to height) | B0 |