1) Why does a ball thrown into the air tend to fall back to the ground? a) Gravity causes the ball to fall b) The air pulls the ball to the ground c) Acceleration causes the ball to move faster d) The mass of the ball causes the ball to drop 2) In order to jump, what force do we need to overcome? a) Friction b) Gravity c) Mass d) Wind 3) Which will happen if a ball is thrown upward a) The ball remains in the air b) The ball moves in a curve path c) The ball will go back to the ground d) The ball will continue to move upward 4) Who discovered gravity when he saw an apple falling to the ground? a) Albert Einstein b) Galileo Galilei c) Isaac Newton d) Nicholas Copernicus 5) Imagine the Earth lost its Gravity. What will happen to objects on it? a) All objects will float in the air b) All objects will fall on the ground c) Everything will just stay in place d) Only the lighter objects will floats in the air 6) What affects gravitational force between two objects? a) Distance and mass b) Color and shape c) Temperature and size d) Speed and direction 7) How does distance affect gravitational pull? a) Increases with distance b) Unaffected by distance c) Decreases with distance d) Varies randomly 8) What happens to gravity if mass increases? a) Gravity disappears b) Gravity decreases c) Gravity stays the same d) Gravity increases 9) Which object has more gravitational pull? a) Moon b) Earth c) Ball d) Feather 10) What is the effect of gravity on a moving object? a) Changes its shape b) Changes its color c) Changes its speed d) Changes its temperature 11) What happens to gravity if distance is doubled? a) Gravity stays same b) Gravity doubles c) Gravity halves d) Gravity is quartered 12) What is the gravitational force on Earth called? a) Volume b) Mass c) Weight d) Density 13) How does gravity affect a satellite? a) Keeps it in orbit b) Pushes it away c) Stops its motion d) Changes its color 14) What is the unit of gravitational force? a) Joule b) Newton c) Watt d) Meter 15) What happens to gravity if mass is halved? a) Gravity disappears b) Gravity doubles c) Gravity stays same d) Gravity halves 16) What is the effect of gravity on a falling object? a) Decreases speed b) Increases speed c) Stops motion d) Changes direction 17) What is the relationship between mass and gravity? a) Randomly related b) Inversely proportional c) No relationship d) Directly proportional 18) How does gravity affect tides? a) Changes water color b) Stops tides c) Causes tides d) Increases temperature 19) What is the effect of gravity on planets? a) Keeps them in orbit b) Pushes them away c) Stops their motion d) Changes their size 20) What happens to gravity if distance is halved? a) Gravity halves b) Gravity quadruples c) Gravity doubles d) Gravity stays same

Gravity and Its Effects

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