Flashcards
Topic 1
Flashcards do conjunto (8)
- 1What are micrometer screws used for?Measuring very small Distances
- 2What is the difference between speed and velocity?Velocity is the measure of speed in one direction. Speed is how much distance travelled in a certain amount of time. Velocity is a vector quantity whereas speed is a scalar quantity
- 3What is the gradient in a distance-time graph?Speed
- 4What is the gradient in a speed-time graph?acceleration
- 5What is deceleration?Negative acceleration
- 6Describe the motion of a falling object, taking air resistance into consideration (EXAMPLE: a ball falling)1. As the ball starts to fall, the ball is gaining speed
2. After a while, the ball will reach its terminal velocity. At this point, the downward force is the same as the upward air resistance - 7What is a Moment?A turning force
- 8Describe the behavior of the moments when e.g. a see-saw is in equilibriumIn an equilibrium see-saw both moments are equal which means a resultant force of 0. Therefore the see-saw is in equilibrium.
Informações
- Descrição
- O usuário eliminou as informações de disciplina FlashCards sobre Topic 1, criado por Usuário eliminado em 15-09-2016.
- Criado por
- Usuário eliminado · set 2016
- Atualizado
- 16 set 2016
- Visualizações
- 17
- Histórico
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- Criado por Leann McLeod · 26 abr 2016
- Copiado por Leann McLeod · 15 set 2016
- Avaliação