Fall

How long did it take this object to travel back to its reference/starting point?

• 20 s

• 30 s

• 60 s

• 100 s

Tags

NGSS.MS-PS3-1

What values are always known for a free falling object?

• v_i = 0 m/s
   a = -9.8 m/s²

• v_i = -9.8 m/s
   a = -9.8 m/s²

• v_i = -9.8 m/s
   a = 0 m/s²

• d = -9.8 m
  v_i = 0 m/s

What was the first day of fall in 2023?

• September 21

• September 22

• September 23

• September 24

Tags

NGSS.MS-ESS1-1

What's another name for the first day of fall?

• spring equinox

• summer solstice

• winter solstice

• autumn equinox

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS2-6

What's equal on the autumn equinox?

• hours of daylight and hours of darkness

• number of monarchs and number of milkweed

• hours at school and hours at home

• minutes on the school bus and minutes of homework

Tags

NGSS.MS-ESS1-1

Which pigment is NOT responsible for the yellows, oranges, and reds of deciduous trees in the fall?

• flavenoids

• carotenoids

• anthocyanins

• chlorophyll

Animals like the monarch and the ruby throated hummingbird leave Ontario in the fall in a behaviour called

• migration

• mitigation

• hibernation

• adaptation

Tags

NGSS.MS-LS1-4

What is the acceleration due to gravity for an object in free fall on Earth?

Tags

NGSS.MS-PS2-4

Which of the following best describes the motion of an object in free fall?

• Constant velocity

• Constant acceleration

• Increasing acceleration

• Decreasing velocity

Tags

NGSS.HS-PS2-1

If an object is in free fall, what is its initial velocity when it starts from rest?