Year 11 Science — course check

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Knowledge check

Year 11 Science — course check

Choose one answer for each question. Aim for at least 60%. You can practise and try again. Your score is saved only when you submit the saved quiz.

Question 1

In the stated single-gene model Aa × aa, probability of aa is:

1/2 1/4 1

The Aa parent supplies A or a; the aa parent supplies a.

Question 2

Dynamic equilibrium means:

All reactions stop Forward and reverse rates are equal Reactant and product amounts must be equal

Amounts remain constant because the two rates match.

Question 3

Breaking requires 700 kJ and formation releases 600 kJ. Net change is:

-100 kJ -1,300 kJ +100 kJ

700 - 600 = +100 kJ, endothermic in this convention.

Question 4

Velocity rises uniformly from 0 to 6 m/s in 3 s. Displacement is:

9 m 18 m 2 m

The triangular graph area is half of 3 × 6.

Question 5

An ideal 200 V transformer with primary:secondary turns 10:1 gives:

2,000 V 20 V 200 V

Voltage follows the turns ratio.

Question 6

The Sun's energy is associated with:

Ordinary combustion A chemical battery Nuclear fusion

Light nuclei join in nuclear reactions.

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