Periodic Table
Forces
Photosynthesis
Waves
General Knowledge
100
What do you find within the nucleus of an atom?
Neutrons and protons.
100
Name one contact force and one non-contact force.
Contact: Friction, air resistance
Non-contact: Gravity, magnetic
100
What colour is chlorophyll?
Green
100
What is the unit for frequency?
1/s or Hz
100
What is the most abundant gas in our atmosphere?
Nitrogen
200
How many electrons can the first shell of electrons hold?
2
200
What is the resultant force
320N in the upward direction
200
Name the organelle responsible for photosynthesis
Chloroplast
200
What happens when you increase the amplitude of the sound wave?
The sound gets louder
200
What is the hardest natural substance on Earth?
Diamond
300
Why is group 0 very unreactive?
The halogens have full outer shells of electrons
300
Describe what is happening at each of the stages:
1 - Walking at steady speed
2 & 4 - Stationary
3 - Running at steady speed
5 - Jogging back to starting point
300
What is the word equation of the chemical reaction happening during photosynthesis?
300
Through what medium does sound not travel?
A vacuum
300
How many bones are in an adult human body?
206
400
Describe what is an ion
An ion is defined as an atom or molecule that has gained or lost one or more of its valence electrons, giving it a net positive or negative charge.
400
What is the equation for moment of a Force?
moment = force x distance from the pivot
400
What is the name for the process where water moves from an area of high concentration to an area of low concentration?
Osmosis
400
What happens to the wavelength as you go down the colour spectrum below:
It decreases.
400
Which Physicist wrote A Brief History of Time?
Stephen Hawking
500
Draw the electronic structure of 2311Na
500
Is the seesaw balanced or will it fall clockwise or anti-clockwise?
LHS: 4m x 80N = 320Nm
RHS: 6m x 50N = 300Nm
Unbalanced. Anti-clockwise.
500
Draw a plant cell and label at least 4 organelles.
500
Name 3 parts of the ear.
500
List 5 different jobs predominantly involving science
Engineer, scientist, pharmacist, doctor, technician, mechanic, tech expert, researcher, teacher, analyst