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- 1. Multiple Choice
A boy throws a baseball up in the air. Why does the baseball fall back down to the ground?
the mass of the baseball decreases, causing it to fall
the weight of the ball causes the ball to fall
the force of gravity causes the ball to fall
the density of the ball causes the ball to fall
- 2. Multiple Choice
Who was the scientist who first identified the laws of gravity.Leonardo Da VinciGalileoEdmund HalleySir Isaac Newton - 3. Multiple ChoiceEvery object in the universe hasmagnetic pullgravityatomic forceelectronics
- 4. Multiple Choice
Why would you land on the ground instead of floating off into the space? Because ...
We are heavier than the Earth
The gravity pull us to the center of Earth
The air resistance is pushing against the gravity
- 5. Multiple Choice
What would happen, if gravity suddenly disappears?
we will able to walk on the Earth surface
we will hover in the space
we will be pulled by the Earth
- 6. Multiple Choice
Which one is NOT the postive impact of gravity.
Gravity keeps the air around us as a blanket, and it prevents air from escaping into space.
We can stand, jump, walk, and run on the ground due to gravity.
The gravity will make the planets collide.Gravity keeps all the planets in the orbit of the sun.
Gravity keeps all the planets in the orbit of the sun.
- 7. Multiple ChoiceWhat is gravity?A forceEnergyA pushAll of them
- 8. Multiple ChoiceWithout gravity we would________.Float awayStay in the groundNothing would happen.I don't know
- 9. Multiple ChoiceWhy a ball falls to the ground?Earth's force of gravity is GREATER than the ball's, so the ball gets attracted to the ground.Earth's force of gravity is LESS than the ball's, so the ball gets attracted to the ground.
- 10. Multiple ChoiceWhich has more mass, Earth or the Moon?EarthMoonThe same
- 11. Multiple ChoiceWhy can astronauts jump and float a little on the Moon?Because the Moon's gravity is NOT that STRONG.Because the Moon's gravity is VERY STRONG.
- 12. Multiple Choice
Which statement about gravity is true?
gravity causes objects to pull towards one another
gravity causes objects to push away from each other
gravity only takes place between planets
the moon doesn't have any gravity
- 13. Multiple ChoiceWhich has a STRONGER force of gravity, Earth or the Moon?EarthMoon
- 14. Multiple Choice
What keeps the planets in orbit around the sun?
gravity
friction
density
distance
- 15. Multiple ChoiceLook at the picture. Is the force of gravity on the boy a push or a pull?PullPush
- 16. Multiple ChoiceThe law of universal gravitation is credited to whom?EinsteinGalileoDarwinNewton
- 17. Multiple ChoiceGravity attracts all objects towards one another.TrueFalse
- 18. Multiple ChoiceWithout gravity we would________.Float awayStay in the groundNothing would happen.I don't know
- 19. Multiple ChoiceDo astronauts float away on the moon?No, because Moon's gravity pulls them down.Yes, they float and can't even walk!
- 20. Multiple ChoiceAre astronauts in space and close to Earth being pulled by it?Yes, that's why they float (but they're actually falling)No, they don't feel Earth's gravity.
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