Physics
What is the SI unit of force?
Newton (N)
What is the function of red blood cells?
To transport oxygen around the body
What is the chemical formula for carbon dioxide?
CO2
What is the largest planet in our solar system?
Jupiter
State Newton's Third Law of Motion
For every action, there is an equal and opposite reaction
Name the enzyme that breaks down starch into maltose
Amylase
Which gas is given off when a metal reacts with an acid?
Hydrogen
Which scientist proposed the theory of evolution by natural selection?
Charles Darwin
What type of energy is stored in a stretched spring?
Elastic potential energy
What are the tiny sacs in the lungs where gas exchange occurs called?
Alveoli
What is the difference between exothermic and endothermic reactions?
Exothermic reactions release energy; endothermic reactions absorb energy
Which element makes up about 78% of Earth's atmosphere?
Nitrogen
A car accelerates frm 10m/s to 20m/s in 5 seconds. What is the acceleration?
2 m/s2
In genetics, what term describes the physical characteristics expressed in an organism?
Phenotype
Which colour does universal indicator turn in a strong alkali?
Purple
Who is known as the "father of modern chemistry"?
Antoine Lavoisier
Why does a ray of ight bend when it passes from air into glass?
Because the light slows down as it enters a denser medium (refraction)
In meiosis, why is genetic variation produced?
Because of crossing over and independent assortment of chromosomes
Explain why metals conduct electricity
Because they have delocalised electrons that can move freely through the structure
What branch of science studies interactions between organisms and their environment?
Ecology