PHYSICS
WHAT IS THE SI UNIT OF FORCE
NEWTON
What is the empirical formula of glucose, C₆H₁₂O₆?
CH₂O
What is the gradient of the line 3y = 6x − 9?
2
Convert hexadecimal 2F to denary
47
What enzyme breaks down starch in saliva?
Amylase
WHAT ENERGY CHANGE HAPPENS WHEN A BALL FALLS
GPE TO KE
What is the oxidation state of manganese in KMnO₄?
+7
Solve: x² − 5x + 6 = 0
X= 2, 3
What logic gate outputs 1 only when both inputs differ?
XOR
Which blood vessel carries oxygenated blood to the heart?
pulmonary vein
WHAT IS SPEED OF LIGHT IN VACUUM
3 x 10^8 m/s
How many moles are in 4.4 g of CO₂?
0.1 Mol
What is log₂ 32?
5
What is the denary value of the 8-bit two's complement number 11111110?
-2
What is the net ATP yield from anaerobic respiration per glucose in humans?
2
A 4 ohm and 6 ohm resistor are joined in parallel what is the total resistance
2.4
Name the product at the anode in electrolysis of molten lead bromide
bromine
Differentiate y = 4x³ − 2x
12x² − 2
What sorting algorithm repeatedly swaps adjacent out-of-order elements?
Bubble sort
What hormone is released by the pancreas when blood glucose falls?
Glucagon
LIGHT GOES FROM WATER (N=1.33) TO AIR. ROUGHLY WHAT IS THE CRITICAL ANGLE
ROUND OFF TO 49
What type of bonding gives graphite its electrical conductivity?
Delocalised electrons between layers
A GP has first term 5 and ratio 0.2. What is the sum to infinity?
6.25
How many different values can be stored in 10 bits?
1024
Two Bb parents cross. What fraction of offspring show the recessive trait?
1/4