Combining Forces
Earth's Rotation & Revolution
Seasons
Moon Phases and Eclipses
Asteroid v.s. Comets
100

Two forces of 5 N and 3 N act on an object in the opposite directions, what is the net force acting on the object?


What is 2 N

100

How long does it take for the Earth to complete one full rotation?


What is 24 hours

100

What is the imaginary line that runs around Earth, dividing it into the Northern and Southern Hemispheres?


What is the "Equator"

100

What phase of the Moon occurs when the entire side of the Moon facing Earth is lit up?

What is "Full Moon"

100

Which object is made mostly of rock and metal, and is typically found in the asteroid belt between Mars and Jupiter?

What is an asteroid?

200

When two forces of 10 N and 15 N act on an object in opposite directions, which direction will the object move?


What is the direction of the larger force (15 N)

200

What is the term for the spinning of Earth on its axis?


What is "rotation"

200

When the Northern Hemisphere is experiencing summer, what season is the Southern Hemisphere experiencing?


What is "winter"

200

What is the name of the event when the Moon passes directly between Earth and the Sun, casting a shadow on Earth?


What is Solar Eclipse


200

Which object is primarily made of ice, dust, and rocky material, and often develops a glowing tail as it gets close to the Sun?

What is a comet

300

What is the effect of a balanced force system on an object?


What is no change in motion (0 Net force)

300

What is the term for Earth's movement around the Sun?



What is "revolution"

300

During which season does the Northern Hemisphere experience the longest day of the year?


What is "summer"

300

What is the term for the event when Earth passes directly between the Sun and the Moon, casting a shadow on the Moon?


What is lunar eclipse

300

What do comets, asteroids, and meteoroids have in common?

What is "they all orbit the sun" 

400

What do we call forces that are applied to an object in different directions, causing a change in its motion?


What are unbalanced forces

400

How long does it take Earth to complete one revolution around the Sun?


What is 365 days

400

Why do we have different seasons on Earth?

What is Earth's tilt and revolution around the Sun

400

What is it called when the Moon takes on a reddish color due to sunlight passing through Earth’s atmosphere and scattering

What is a "blood moon"

400

What do we call a piece of an asteroid or comet that has entered Earth's atmosphere and burned up?


What is a meteor

500

What is the force that pulls objects toward the center of the Earth?


What is "gravity"?

500

What is the name of the imaginary line that Earth rotates around?


What is the "axis"

500

Which season occurs in the Northern Hemisphere between winter and summer?


What is "spring"

500

What phase of the Moon occurs when we see half of the Moon illuminated and half in shadow, with the left side lit?


What is "Last Quarter" 

500

What is the main reason a comet develops a visible tail when it gets close to the Sun?

What is "the Sun’s heat causes the ice and gases in the comet to vaporize"

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