Flashcards
Physics Revision | Summer Exams | 2018
Flashcards do conjunto (20)
- 1\What is the unit of current?Amps.
- 2How many joules are in a kilojoule?1000.
- 3What is a Sankey diagram?A Sankey diagram is an energy transfer diagram that shows the proportion of energy transferred in different ways.
- 4Describe the energy transfers that happen when an archer pulls back and then releases a bow to shoot an arrow.Elastic potential energy when the archer pulls back the bow and kinetic energy when you shoot the arrow.
- 5Which of these is not a fuel? a) petrol b) sugar c) coal d) aird) air
- 6What are the three fossil fuels?Coal, Gas, Oil.
- 7Which of these fuels are not renewable Hint: There are 2. a) Coal b) Gas c) Winda) Coal and b) Gas
- 8What does dissipated mean?When energy becomes spread out wastefully.
- 9What is the formula triangle for speed?Speed = Distance travelled
________________
Time taken - 10On a distance time graph, what does it mean when the line on the graph is horizontal?The object has stopped moving.
- 11On a distance time graph, what does it mean when the line on the graph is a straight upward line?The object is going at a consant speed.
- 12On a distance time graph, what does it mean when the line on the graph is an upward-sloping line.It means that the object is accelerating.
- 13What are independent variables?The ones we can change.
- 14What are dependent variables?A variable whose value depends on another.
- 15What is correlation?Correlation is a statistical measure that indicates the extent to which two or more variables fluctuate together.
- 16If the independent variable is discontinuous, what chart should you use?Bar chart.
- 17Two cars are going opposite directions, one at 70mph, the other at 60mph. How fast does it look?130mph because you add them together.
- 18Two cars are going the same direction, one at 60mph, the other at 20mph. How fast does it look?40mph because you minus the numbers.
- 19What forces act on a plane in the sky?Air resistance, gravity lift and thrust.
- 20What is a gravitational field?A gravitational field is an area in which an object feels a force.
Informações
- Descrição
- These flashcards are lit fam
- Criado por
- Those Crepes Are Safe Fam ツ
- Visualizações
- 22
- Avaliação