Energy
What are the two different categories of energy?
Kinetic and Potential
What is a fossil fuel?
Fuels that come from the earth and aren't renewable.
How many different simple machines are there?
6
What are the 3 heat transfer methods
Radiation, Convection and Radiation
Where does heat from radiation come from?
The sun
What is the difference between useful and not useful energy?
Useful is energy that you want to be created and not useful energy is energy that isn't wanted.
What type of fuel does a combustion engine use?
Gasoline/Petrol
What is the difference between first, second and third class levers.
The fulcrum, loads and efforts have different locations.
What are the efficiency diagrams called?
Sankey Diagram
What are alkanes?
Saturated Hydrocarbons
If you have a car what is the useful energy?
Kinetic
What is an example of a bio fuel?
Methane
How do find out the efficiency of gears?
Driving gears ÷ Driven gears put into a ratio.
What is the triangle in scientific equations called?
A Delta
How many different things are on the electromagnetic spectrum?
7
If a light bulb is receiving 250W of energy and 150 is useful energy, how efficient is the light bulb?
60%
Name five different renewable sources of energy
Acceptable answers: Geothermal, Solar, Nuclear, Hydro, Wind and Bio
What is the difference between force and speed advantages?
Speed advantage makes something quicker. Force makes doing harder jobs easier
What is the formula for Alkane Hydrocarbons?
CnH (2n+2)
How many layers are on a traditional fractional tower?
6
Name all nine different types of energy.
Kinetic, Chemical, Heat, Sound, Nuclear, Gravitational, Electrical, Elastic and Light or radiant.
How long does fossil fuel take to create?
150 million years
How do you find the mechanical advantage if a wheel and axle?
Radius of wheel ÷ Radius of axle
What is the worded equation for the burning of propane?
Propane+Oxygen -> Carbon Dioxide+Water
Name everything on the electromagnetic spectrum
Gamma Rays, X Rays, Ultraviolet, Visible Light, Infra Red, Radio Waves and Microwaves