Flashcards
9.2 Changes in speed
Flashcards do conjunto (11)
- 1accelerationa change of speed/ a measure of how quickly the change of speed happens.
- 2why do objects fall towards the earththe force of gravity pulls the object towards the earth
- 3an acceleration of 9.8 m/s2 is called?1 g
- 4the speed of an object increases by how much every second that it falls10m/s or 36 km/h
- 5air resistancefriction between the air and a moving object
- 6terminal velocitythe final velocity at which an object falls, with no further acceleration possible due to air resistance
- 7average acceleration formulachange in speed divided by the time
- 83 typical accelerationsfree fall = 9.8 = 1g
a sneeze = 29.4 = 3g
rollercoaster = " - 9acceleration can measured in?meters per second (m/s) or 1 kilometer per hour or second(km/h/)
- 10what happens on a speed time graph?the gradient is the acceleration is the moving object, the area below a speed time graph is the distance that the object has traveled.
- 11—
Informações
- Descrição
- FlashCards sobre 9.2 Changes in speed, criado por hadil musawi em 08-05-2018.
- Criado por
- hadil musawi · mai 2018
- Atualizado
- 8 mai 2018
- Visualizações
- 11
- Avaliação