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What is the name of the force holding us to the Earth?
Gravity
The force exerted on the body by gravity.
Weight
[True or False] When the object from Earth move to Moon, the mass of the object will change
False
[True or False] When the object from Earth move to Moon, the weight of the object will change
True
What is the formula introduced by Sir Isaac Newton to get the weight of an object?
W = m x g
[True or False] The gravitational force on Earth is 10 N/kg
True
[True or False] The gravitational force on moon is bigger than on Earth
False
The amount of stuff that made something
Mass
If the planets orbit the Sun, where do the Sun along with the entire solar system orbit?
Galaxy or Milky way Galaxy
Name the Giant Gasses planets in order.
Jupiter, Saturn, Uranus, Neptune
Who discovered gravity?
Isaac Newton
Why doesn't the Feather and the ball fall at the same time on Earth?
Because air resistance hold the feather movement
What would happen without Gravity?
People (and everything else on Earth) could just float away into space.
The strength of gravity on a planet is 5 N/kg. Calculate the weight of an 800 kg spacecraft on that planet.
4000 N
The strength of gravity on a planet is 10 N/kg. Calculate the weight of a 900 kg airplane on Earth.
9000 N
A television camera has a weight of 20 N on the Moon. Calculate its mass of the camera if the gravitational force on moon is 2 N/kg
10 kg
