Page 92 - CT&AI_CLasa_7_Part_1

Earth, Moon, and

12 the Sun

computational thinking quest

Tick ( ) the correct option.

1. While sitting on a merry-go-round rotating 3. From the diagram, why does the Northern
anti-clockwise, a tree appears to move Hemisphere experience summer in June?
clockwise. This observation helps us conclude (Abstract Thinking)
that (Abstract Thinking) Vernal Equinox
Summer 20 March
(a) the Sun actually moves across the Solstice
sky from East to West. 21 June Spring
Summer Winter
(b) the Earth rotates clockwise when
viewed from the North Pole. Autumn Winter
Solstice
(c) apparent motion of objects Autumnal Equinox 21 December
is opposite to the observer’s 23 September
rotation. (a) Earth is closest to the Sun

(d) the Earth’s axis is tilted at 23.5°. (b) Axis tilt causes more direct rays
and longer daylight
2. When viewed from above the North Pole, the (c) Orbit is elongated
Earth rotates anti-clockwise. Which everyday
examples best models this motion? (d) Southern Hemisphere blocks sunlight
(Abstract Thinking) 4. The Foucault pendulum demonstrates Earth’s

rotation because: (Abstract Thinking)
(a) A spinning top observed from
above. (a) The pendulum bob itself rotates
with the Earth’s axis
(b) A pendulum swinging back and
(b) The pendulum swings in a fixed
forth.
plane while Earth rotates beneath it
(c) A ball rolling on the ground.
(c) The pendulum’s length determines
the Earth’s rotational speed
(d) A car moving in a circular track.
(d) The pendulum bob is magnetically
aligned with the poles

90 Computational Thinking-7 (Science)