theme park science second form Flashcards
(19 cards)
How many energy stores are there and what are they
7 ( chemical, kinetic, gravitational, elastic, thermal, magnetic and electrostatic)
What energy would be used in a battery
Chemical
What energy would be used in moving objects
Kinetic
How can energy be transfered
Through various mechanisms: mechanically, electrically, by heating and by radiation (light and sound)
What does mechanical transfer involve
It involves forces acting on an object such as pushing or pulling
What electrical transfer involve
It involves energy moving through electrical circuits, powering devices
What does heating transfer involve
It involves energy moving from a hotter object to a cooler one as seen in heating systems
What does radiation transfer involve
It involves energy moving through a space such as sunlight warming the earth
Example what energy transfer is happening when a ride is operated by motors
Mechanical
Mechanical energy transfer
When a force acts on a body
Electrical energy transfer
Electricity transferring energy from a power source to a component within a circuit
Heating energy transfer
Conduction, convection and radiation
Radiation energy transfer
Light and sound carry energy from one point to another
What does energy efficiency refer to
The ratio of useful energy output to total energy input, highlighting how well energy is utilized.
What is the formula for calculating speed
Distance travelled divided by time taken.
speed =
Distance/time
1km =
1m=
1cm=
1000m
100cm
10mm
What do distance time graphs visually represent
The relationship between distance travelled and time taken.
