Body Coordination
Define the term pathogen (give an example).
A foreign body which causes illness
What are the units for Voltage, Current and Resistance?
Volts, amps (amperes) and Ohms.
Identify the three types of plate boundaries.
Convergent, Divergent and Transform
What is the law of conservation of energy?
Energy cannot be created or destroyed, it can only change form.
What is the charge of each subatomic particle? (identify all 3 first)
Proton - positive
Neutron - neutral
Electron - negative
Which system sends signals around the body the fastest?
Nervous System
A circuit has a current of 6 and 12 volts, what is the resistance? (you may use a calculator)
2
What causes tectonic plates to move? (2 things)
Convection currents in the mantle and gravity.
What are the three ways that energy can be transferred and identify the medium for each.
Conduction - Solids
Convection - Liquids and Gases
Radiation - No medium / empty space
If an element contains 8 protons, what is its atomic number and what element is it?
8, Oxygen
What is the difference between the standard response arc and a reflex arc and why is it important?
The reflex arc skips the brain. This is faster to reduce damage from dangerous stimuli.
A circuit voltage is set at 30 and has a resistance of 5. How much current is going through it? (you may use a calculator)
6
What might I find where there is a convergent boundary and oceanic crust is being subducted?
Volcanoes
What are the two types of waves that energy can move in? (briefly describe, draw or act out each one)
Transverse
Compression / Longitudinal
How many valence electrons do group 5 elements have and what is their charge?
5 Valence electrons, need 3 more to be full so minus 3 charge.
What are parts of the immune system's second line of defence? (at least 3)
Inflammation, swelling, fever, phagocytosis.
What does a circuit with one switch next to a battery and then 3 light globes in parallel look like (draw it on the board).
* Correctly drawn circuit *
Why is it important for scientists to learn about how plate boundaries interact and where it takes place?
To make predictions and informed decisions around earthquake or volcanic risks.
What are the three types of nuclear radiation. List them in order of lowest to highest penetrating power (think about the size of each particle).
Alpha, Beta and Gamma
Alpha - lowest penetrating power --> Gamma - Highest penetrating power.
How many electron shells does Krypton (one of the noble gases) have?
4 (its in the 4th row)
Which line of defence in the immune system targets specific pathogens and how does it do this?
The third line of defence has specialised white blood cells called memory cells
What are the two main differences between a series and parallel circuit?
A series circuit only has one path in which energy has to be split among globes.
A parallel circuit has multiple paths, each globe can be removed without turning off the whole circuit.
Japan is a country known for its food and rich culture as well as frequent earthquakes. What type of plate boundary might Japan be situated near?
Transform boundary.
Provide 1 positive and negative of using coal as an energy source.
Provide 1 positive and negative of using solar as an energy source.
Coal: + Provides jobs, is cheap and easy.
- Not sustainable, greenhouse emissions.
Solar: + Clean and renewable.
- Not very efficient and weather dependent, still have to mine to get parts.
How many electrons does Aluminium have? How many of these are in its valence shell?
13, 3.